bots.go

// This package helps the backend determine which clients are bots or crawlers.
// In Write.as, this is used to prevent certain things when viewing posts, like
// incrementing the view count.
package bots

import "strings"

var bots = map[string]bool{
	"ABACHOBot/8.14 (Windows NT 6.1 1.5; ko;)":                                 true,
	"AcademicBotRTU (https://academicbot.rtu.lv; mailto:caps@rtu.lv)":          true,
	"AddThis.com robot tech.support@clearspring.com":                           true,
	"AdsBot-Google (+http://www.google.com/adsbot.html)":                       true,
	"AdsTxtCrawlerTP/1.2":                                                      true,
	"Alwyzbot/1.0":                                                             true,
	"Amazon-Advertising-ad-standards-bot/1.0":                                  true,
	"Apple Color Emoji":                                                        true,
	"AwarioRssBot/1.0 (+https://awario.com/bots.html; bots@awario.com)":        true,
	"AwarioSmartBot/1.0 (+https://awario.com/bots.html; bots@awario.com)":      true,
	"BeeperBot/0 Matrix-Media-Repo/1":                                          true,
	"bidswitchbot/1.0":                                                         true,
	"bitlybot":                                                                 true,
	"BrightEdge Crawler/1.0 (crawler@brightedge.com)":                          true,
	"BSbot 1.1 (monthly copyright check - html/js/css)":                        true,
	"Buzzbot/1.0 (Buzzbot; http://www.buzzstream.com; buzzbot@buzzstream.com)": true,
	"CheckMarkNetwork/1.0 (+http://www.checkmarknetwork.com/spider.html)":      true,
	"Chrome/41.0.2272.96 Mobile Safari/537.36 (compatible; Googlebot/2.1; +http://www.google.com/bot.html)": true,
	"cis455crawler":                                         true,
	"Clickagy Intelligence Bot v2":                          true,
	"COMODO SSL Checker":                                    true,
	"companyspotter/1.0.0.0 (robot@companyspotter.com)":     true,
	"crawler_eb_germany_2.0":                                true,
	"crawlernutchtest/Nutch-1.9":                            true,
	"CRAZYWEBCRAWLER 0.9.8, http://www.crazywebcrawler.com": true,
	"CSS Certificate Spider (http://www.css-security.com/certificatespider/)": true,
	"datebot":                                     true,
	"DeadYetBot/1.0 (+http://deadyet.lol)":        true,
	"Deskyobot/1.0 (+https://www.deskyo.com/bot)": true,
	"DingTalkBot-LinkService/1.0 (+https://open-doc.dingtalk.com/microapp/faquestions/ftpfeu)":            true,
	"DisqusAdstxtCrawler/0.1 (+https://help.disqus.com/en/articles/1765357-ads-txt-implementation-guide)": true,
	"dj-research/Nutch-1.11 (analytics@@demandjump.com)":                                                  true,
	"DnBCrawler-Analytics": true,
	"DoCoMo/2.0 N905i(c100;TB;W24H16) (compatible; Googlebot-Mobile/2.1; +http://www.google.com/bot.html)": true,
	"Domain Re-Animator Bot (http://domainreanimator.com) - support@domainreanimator.com":                  true,
	"DomainCrawler/1.0": true,
	"DomainStatsBot/1.0 (https://domainstats.com/pages/our-bot)":                                  true,
	"drinespider/Nutch-1.19 (D-RINE Spider; www.d-rine.com/search/about; www.d-rine.com/contact)": true,
	"DuckDuckBot-Https/1.1; (+https://duckduckgo.com/duckduckbot)":                                true,
	"ExactSeekCrawler/1.0": true,
	"EyeMonIT Uptime Bot Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/74.0.3729.169 Safari/537.36": true,
	"FediCrawl/1.0":                     true,
	"fedistatsCrawler/1.0":              true,
	"FeedlyBot/1.0 (http://feedly.com)": true,
	"GG PeekBot 2.0 ( https://www.gg.pl/ https://www.gg.pl/info/praca/ )": true,
	"Gigabot/1.0": true,
	"GNUsocialBot 2.0.1-beta0 - https://gnusocial.rocks":          true,
	"Go 1.1 package http":                                         true,
	"Go-http-client/2.0":                                          true,
	"Google-Adwords-Instant (+http://www.google.com/adsbot.html)": true,
	"Google-Display-Ads-Bot":                                      true,
	"Googlebot":                                                   true,
	"Greppr Bot 1.0/Nutch-1.19":                                   true,
	"GroupMeBot/1.0":                                              true,
	"GuzzleHttp/7":                                                true,
	"Gwene/1.0 (The gwene.org rss-to-news gateway) Googlebot":     true,
	"HubSpot Connect 2.0 (http://dev.hubspot.com/) (namespace: hs_web_crawler) - RoadsModelsJobs-hubspot-53-domain-web-crawl":                         true,
	"ia_archiver (+http://www.alexa.com/site/help/webmasters; crawler@alexa.com)":                                                                     true,
	"IABot/2.0 (+https://meta.wikimedia.org/wiki/InternetArchiveBot/FAQ_for_sysadmins) (Checking if link from Wikipedia is broken and needs removal)": true,
	"IonCrawl (https://www.ionos.de/terms-gtc/faq-crawler-en/)":                                                                                       true,
	"LightspeedSystemsCrawler Mozilla/5.0 (Windows; U; MSIE 9.0; Windows NT 9.0; en-US)":                                                              true,
	"LinkedInBot/1.0 (compatible; Mozilla/5.0; Apache-HttpClient +http://www.linkedin.com)":                                                           true,
	"LinkedInBot/1.0 (compatible; Mozilla/5.0; Jakarta Commons-HttpClient/3.1 +http://www.linkedin.com)":                                              true,
	"LivelapBot/0.2 (http://site.livelap.com/crawler)":                                                                                                true,
	"LSSRocketCrawler/1.0 LightspeedSystems":                                                                                                          true,
	"magpie-crawler/1.1 (U; Linux amd64; en-GB; +http://www.brandwatch.net)":                                                                          true,
	"Mastodon server indexer":                            true,
	"MBCrawler/1.0 (https://monitorbacklinks.com/robot)": true,
	"Mediatoolkitbot (complaints@mediatoolkit.com)":      true,
	"Mediatoolkitbot (info@mediatoolkit.com)":            true,
	"Melvil/1.0": true,
	"MetaCommentBot; http://metacomment.io/about":                            true,
	"mfibot/1.1 (http://www.mfisoft.ru/analyst/; <admin@mfisoft.ru>; en-RU)": true,
	"Minoru's Fediverse Crawler (+https://nodes.fediverse.party)":            true,
	"mj12bot": true,
	"Mozilla/4.0 (compatible; QwertyNetworksBot/1.0; +https://qwertynetworks.com/faq/QwertyNetworksBot)":                                                              true,
	"Mozilla/4.0 (compatible; Wibybot; https://wiby.me/)":                                                                                                             true,
	"Mozilla/5.0 (Android 11; Mobile; rv:109.0) Gecko/114.0 Firefox/114.0":                                                                                            true,
	"Mozilla/5.0 (compatible) SemanticScholarBot (+https://www.semanticscholar.org/crawler)":                                                                          true,
	"Mozilla/5.0 (compatible; AhrefsBot/7.0; +http://ahrefs.com/robot/)":                                                                                              true,
	"Mozilla/5.0 (compatible; aiHitBot/2.9; +https://www.aihitdata.com/about)":                                                                                        true,
	"Mozilla/5.0 (compatible; alexa site audit/1.0; +http://www.alexa.com/help/webmasters; )":                                                                         true,
	"Mozilla/5.0 (compatible; AmazonAdBot/1.0; +https://adbot.amazon.com)":                                                                                            true,
	"Mozilla/5.0 (compatible; archive.org_bot +http://archive.org/details/archive.org_bot) Zeno/0030699 warc/v0.8.32":                                                 true,
	"Mozilla/5.0 (compatible; Atomseobot/2.0; +http://https://error404.atomseo.com/)":                                                                                 true,
	"Mozilla/5.0 (compatible; AwarioBot/1.0; +https://awario.com/bots.html)":                                                                                          true,
	"Mozilla/5.0 (compatible; Baiduspider/2.0; +http://www.baidu.com/search/spider.html":                                                                              true,
	"Mozilla/5.0 (compatible; Baiduspider/2.0; +http://www.baidu.com/search/spider.html)":                                                                             true,
	"Mozilla/5.0 (compatible; BitSightBot/1.0)":                                                                                                                       true,
	"Mozilla/5.0 (compatible; BLEXBot/1.0; +http://webmeup-crawler.com/)":                                                                                             true,
	"Mozilla/5.0 (compatible; BomboraBot/1.0; +http://www.bombora.com/bot)":                                                                                           true,
	"Mozilla/5.0 (compatible; BuzzSumo; +http://www.buzzsumo.com/bot.html)":                                                                                           true,
	"Mozilla/5.0 (compatible; Bytespider; spider-feedback@bytedance.com) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/70.0.0.0 Safari/537.36":                        true,
	"Mozilla/5.0 (compatible; coccoc/1.0; +http://help.coccoc.com/)":                                                                                                  true,
	"Mozilla/5.0 (compatible; coccocbot-image/1.0; +http://help.coccoc.com/searchengine)":                                                                             true,
	"Mozilla/5.0 (compatible; coccocbot-web/1.0; +http://help.coccoc.com/searchengine)":                                                                               true,
	"Mozilla/5.0 (compatible; Cocolyzebot/1.0; https://cocolyze.com/bot)":                                                                                             true,
	"Mozilla/5.0 (compatible; DataForSeoBot/1.0; +https://dataforseo.com/dataforseo-bot)":                                                                             true,
	"Mozilla/5.0 (compatible; Discordbot/1.0; +https://discordapp.com)":                                                                                               true,
	"Mozilla/5.0 (compatible; Discordbot/2.0; +https://discordapp.com)":                                                                                               true,
	"Mozilla/5.0 (compatible; Dmbot/1.1)":                                                                                                                             true,
	"Mozilla/5.0 (compatible; DotBot/1.1; http://www.opensiteexplorer.org/dotbot, help@moz.com)":                                                                      true,
	"Mozilla/5.0 (compatible; DotBot/1.2; +https://opensiteexplorer.org/dotbot; help@moz.com)":                                                                        true,
	"Mozilla/5.0 (compatible; DuckDuckGo-Favicons-Bot/1.0; +http://duckduckgo.com)":                                                                                   true,
	"Mozilla/5.0 (compatible; ev-crawler/1.0; +https://headline.com/legal/crawler)":                                                                                   true,
	"Mozilla/5.0 (compatible; Exabot/3.0; +http://www.exabot.com/go/robot)":                                                                                           true,
	"Mozilla/5.0 (compatible; Feedspotbot/1.0; +http://www.feedspot.com/fs/bot)":                                                                                      true,
	"Mozilla/5.0 (compatible; FFZBot/2.4.1; +https://www.frankerfacez.com)":                                                                                           true,
	"Mozilla/5.0 (compatible; FFZBot/3.0.0; +https://www.frankerfacez.com)":                                                                                           true,
	"Mozilla/5.0 (compatible; Findxbot/1.0; +http://www.findxbot.com)":                                                                                                true,
	"Mozilla/5.0 (compatible; Gluten Free Crawler/1.0; +http://glutenfreepleasure.com/)":                                                                              true,
	"Mozilla/5.0 (compatible; GrapeshotCrawler/2.0; +http://www.grapeshot.co.uk/crawler.php)":                                                                         true,
	"Mozilla/5.0 (compatible; heritrix/3.3.0-SNAPSHOT-2014-11-14T15:29:34Z +http://citeseerx.ist.psu.edu/)":                                                           true,
	"Mozilla/5.0 (compatible; heritrix/3.3.0-SNAPSHOT-20140702-2247 +http://archive.org/details/archive.org_bot)":                                                     true,
	"Mozilla/5.0 (compatible; Hkfl-Bot/%s +https://hackerfall.com/)":                                                                                                  true,
	"Mozilla/5.0 (compatible; Konqueror/3.5; Linux) KHTML/3.5.5 (like Gecko) (Exabot-Thumbnails)":                                                                     true,
	"Mozilla/5.0 (compatible; Kraken/0.1; http://linkfluence.net/; bot@linkfluence.net)":                                                                              true,
	"Mozilla/5.0 (compatible; Linespider/1.1; +https://lin.ee/4dwXkTH)":                                                                                               true,
	"Mozilla/5.0 (compatible; linkdexbot/2.0; +http://www.linkdex.com/bots/)":                                                                                         true,
	"Mozilla/5.0 (compatible; linkdexbot/2.2; +http://www.linkdex.com/bots/)":                                                                                         true,
	"Mozilla/5.0 (compatible; LinkFeatureBot)":                                                                                                                        true,
	"Mozilla/5.0 (compatible; LinkisBot/1.0; bot@linkis.com) (iPhone; CPU iPhone OS 8_4_1 like Mac OS X) Mobile/12H321":                                               true,
	"Mozilla/5.0 (compatible; LinkisBot/1.0; bot@linkis.com)":                                                                                                         true,
	"Mozilla/5.0 (compatible; Linux x86_64; Mail.RU_Bot/2.0; +http://go.mail.ru/help/robots)":                                                                         true,
	"Mozilla/5.0 (compatible; Linux x86_64; Mail.RU_Bot/Fast/2.0; +https://help.mail.ru/webmaster/indexing/robots)":                                                   true,
	"Mozilla/5.0 (compatible; Linux x86_64; Mail.RU_Bot/Img/2.0; +https://help.mail.ru/webmaster/indexing/robots)":                                                    true,
	"Mozilla/5.0 (compatible; Linux x86_64; Mail.RU_Bot/Robots/2.0; +http://go.mail.ru/help/robots)":                                                                  true,
	"Mozilla/5.0 (compatible; Linux x86_64; Mail.RU_Bot/Robots/2.0; +https://help.mail.ru/webmaster/indexing/robots)":                                                 true,
	"Mozilla/5.0 (compatible; Linux x86_64; Mail.RU_Bot/Target/2.0; +https://help.mail.ru/webmaster/indexing/robots)":                                                 true,
	"Mozilla/5.0 (compatible; Lipperhey-Kaus-Australis/5.0; +https://www.lipperhey.com/en/about/)":                                                                    true,
	"Mozilla/5.0 (compatible; meanpathbot/1.0; +http://www.meanpath.com/meanpathbot.html)":                                                                            true,
	"Mozilla/5.0 (compatible; MegaIndex.ru/2.0; +http://megaindex.com/crawler)":                                                                                       true,
	"Mozilla/5.0 (compatible; MixrankBot; crawler@mixrank.com)":                                                                                                       true,
	"Mozilla/5.0 (compatible; MJ12bot/v1.4.2; http://www.majestic12.co.uk/bot.php?+)":                                                                                 true,
	"Mozilla/5.0 (compatible; MJ12bot/v1.4.5; http://www.majestic12.co.uk/bot.php?+)":                                                                                 true,
	"Mozilla/5.0 (compatible; MJ12bot/v1.4.8; http://mj12bot.com/)":                                                                                                   true,
	"Mozilla/5.0 (compatible; MojeekBot/0.11; +https://www.mojeek.com/bot.html)":                                                                                      true,
	"Mozilla/5.0 (compatible; MojeekBot/0.6; +https://www.mojeek.com/bot.html)":                                                                                       true,
	"Mozilla/5.0 (compatible; MSIE 10.0; Windows NT 6.1; WOW64; Trident/6.0)":                                                                                         true,
	"Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; abot v1.2.3.1 http://code.google.com/p/abot)":                                                                 true,
	"Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; Trident/5.0); 360Spider":                                                                                      true,
	"Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; Trident/5.0); 360Spider(compatible; HaosouSpider; http://www.haosou.com/help/help_3_2.html)":                  true,
	"Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; WOW64; Trident/5.0)":                                                                                          true,
	"Mozilla/5.0 (compatible; MSIE or Firefox mutant; not on Windows server;) Daum 4.1":                                                                               true,
	"Mozilla/5.0 (compatible; MSIE or Firefox mutant; not on Windows server;) Daumoa 4.0":                                                                             true,
	"Mozilla/5.0 (compatible; MSIE or Firefox mutant;) Daum 4.1":                                                                                                      true,
	"Mozilla/5.0 (compatible; NetpeakCheckerBot/3.6; +https://netpeaksoftware.com/checker)":                                                                           true,
	"Mozilla/5.0 (compatible; Nmap Scripting Engine; https://nmap.org/book/nse.html)":                                                                                 true,
	"Mozilla/5.0 (compatible; oBot/2.3.1; +http://filterdb.iss.net/crawler/)":                                                                                         true,
	"Mozilla/5.0 (compatible; OpenHoseBot/2.1; +http://www.openhose.org/bot.html)":                                                                                    true,
	"Mozilla/5.0 (compatible; OpsBot/1.0)":                                                                                                                            true,
	"Mozilla/5.0 (compatible; OptimizationCrawler/0.2; +http://www.domainoptima.com/robot)":                                                                           true,
	"Mozilla/5.0 (compatible; PaperLiBot/2.1; http://support.paper.li/entries/20023257-what-is-paper-li)":                                                             true,
	"Mozilla/5.0 (compatible; PaperLiBot/2.1; https://support.paper.li/hc/en-us/articles/360006695637-PaperLiBot)":                                                    true,
	"Mozilla/5.0 (compatible; Pinterestbot/1.0; +http://www.pinterest.com/bot.html)":                                                                                  true,
	"Mozilla/5.0 (compatible; PrivacyAwareBot/1.1; +http://www.privacyaware.org)":                                                                                     true,
	"Mozilla/5.0 (compatible; proximic; +https://www.comscore.com/Web-Crawler)":                                                                                       true,
	"Mozilla/5.0 (compatible; Qwantify-dev/1.0; +https://help.qwant.com/bot/)":                                                                                        true,
	"Mozilla/5.0 (compatible; Qwantify-dev10230/1.0; +https://help.qwant.com/bot/)":                                                                                   true,
	"Mozilla/5.0 (compatible; Qwantify-dev19924/1.0; +https://help.qwant.com/bot/)":                                                                                   true,
	"Mozilla/5.0 (compatible; Qwantify-dev19967/1.0; +https://help.qwant.com/bot/)":                                                                                   true,
	"Mozilla/5.0 (compatible; Qwantify-dev2270/1.0; +https://help.qwant.com/bot/)":                                                                                    true,
	"Mozilla/5.0 (compatible; Qwantify-dev22709/1.0; +https://help.qwant.com/bot/)":                                                                                   true,
	"Mozilla/5.0 (compatible; Qwantify-dev31653/1.0; +https://help.qwant.com/bot/)":                                                                                   true,
	"Mozilla/5.0 (compatible; Qwantify-dev4541/1.0; +https://help.qwant.com/bot/)":                                                                                    true,
	"Mozilla/5.0 (compatible; Qwantify-dev5115/1.0; +https://help.qwant.com/bot/)":                                                                                    true,
	"Mozilla/5.0 (compatible; Qwantify-dev846/1.0; +https://help.qwant.com/bot/)":                                                                                     true,
	"Mozilla/5.0 (compatible; Qwantify-worker2994/1.0; +https://help.qwant.com/bot/)":                                                                                 true,
	"Mozilla/5.0 (compatible; Qwantify/2.2w; +https://www.qwant.com/)/*":                                                                                              true,
	"Mozilla/5.0 (compatible; redditbot/1.0; +http://www.reddit.com/feedback)":                                                                                        true,
	"Mozilla/5.0 (compatible; rss2tg bot; +http://komar.in/en/rss2tg_crawler)":                                                                                        true,
	"Mozilla/5.0 (compatible; Sadakura; +http://shorf.com/bot.php)":                                                                                                   true,
	"Mozilla/5.0 (compatible; SearchMySiteBot/1.0; +https://searchmysite.net)":                                                                                        true,
	"Mozilla/5.0 (compatible; Semanticbot/1.0; +http://sempi.tech/bot.html)":                                                                                          true,
	"Mozilla/5.0 (compatible; SemrushBot-BA; +http://www.semrush.com/bot.html)":                                                                                       true,
	"Mozilla/5.0 (compatible; SemrushBot-SI/0.97; +http://www.semrush.com/bot.html)":                                                                                  true,
	"Mozilla/5.0 (compatible; SemrushBot/1.1~bl; +http://www.semrush.com/bot.html)":                                                                                   true,
	"Mozilla/5.0 (compatible; SemrushBot/1~bl; +http://www.semrush.com/bot.html)":                                                                                     true,
	"Mozilla/5.0 (compatible; SemrushBot/7~bl; +http://www.semrush.com/bot.html)":                                                                                     true,
	"Mozilla/5.0 (compatible; SemrushBot; +http://www.semrush.com/bot.html)":                                                                                          true,
	"Mozilla/5.0 (compatible; SEOkicks-Robot; +http://www.seokicks.de/robot.html)":                                                                                    true,
	"Mozilla/5.0 (compatible; SEOlyticsCrawler/3.0; +http://crawler.seolytics.net/)":                                                                                  true,
	"Mozilla/5.0 (compatible; SeznamBot/3.2; +http://fulltext.sblog.cz/)":                                                                                             true,
	"Mozilla/5.0 (compatible; SeznamBot/3.2; +http://napoveda.seznam.cz/en/seznambot-intro/)":                                                                         true,
	"Mozilla/5.0 (compatible; SeznamBot/4.0; +http://napoveda.seznam.cz/seznambot-intro/)":                                                                            true,
	"Mozilla/5.0 (compatible; SiteAuditBot/0.97; +http://www.semrush.com/bot.html)":                                                                                   true,
	"Mozilla/5.0 (compatible; spbot/4.4.2; +http://OpenLinkProfiler.org/bot )":                                                                                        true,
	"Mozilla/5.0 (compatible; spbot/5.0.1; +http://OpenLinkProfiler.org/bot )":                                                                                        true,
	"Mozilla/5.0 (compatible; spbot/5.0.2; +http://OpenLinkProfiler.org/bot )":                                                                                        true,
	"Mozilla/5.0 (compatible; spbot/5.0; +http://OpenLinkProfiler.org/bot )":                                                                                          true,
	"Mozilla/5.0 (compatible; special_archiver/3.1.1 +http://www.archive.org/details/archive.org_bot)":                                                                true,
	"Mozilla/5.0 (compatible; startmebot/1.0; +https://start.me/bot)":                                                                                                 true,
	"Mozilla/5.0 (compatible; SurdotlyBot/1.0; +http://sur.ly/bot.html)":                                                                                              true,
	"Mozilla/5.0 (compatible; SynapseMediaProxyBot/0.0.1; https://git.pixie.town/f0x/synapse-media-proxy)":                                                            true,
	"Mozilla/5.0 (compatible; TestCrawler)":                                                                                                                           true,
	"Mozilla/5.0 (compatible; TrendsmapResolver/0.1)":                                                                                                                 true,
	"Mozilla/5.0 (compatible; uMBot-LN/1.0; mailto: crawling@ubermetrics-technologies.com)":                                                                           true,
	"Mozilla/5.0 (compatible; UptimeRobot/2.0; http://www.uptimerobot.com/)":                                                                                          true,
	"Mozilla/5.0 (compatible; WebwikiBot/2.1; +https://www.webwiki.de)":                                                                                               true,
	"Mozilla/5.0 (compatible; WellKnownBot/0.1; +https://well-known.dev/about/#bot)":                                                                                  true,
	"Mozilla/5.0 (compatible; woriobot +http://worio.com)":                                                                                                            true,
	"Mozilla/5.0 (compatible; Yahoo! Slurp; http://help.yahoo.com/help/us/ysearch/slurp) sieve.k8s.crawler-production/1688317128-0":                                   true,
	"Mozilla/5.0 (compatible; Yahoo! Slurp; http://help.yahoo.com/help/us/ysearch/slurp)":                                                                             true,
	"Mozilla/5.0 (compatible; YaK/1.0; http://linkfluence.com/; bot@linkfluence.com)":                                                                                 true,
	"Mozilla/5.0 (compatible; YandexAccessibilityBot/3.0; +http://yandex.com/bots) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/108.0.0.0":                           true,
	"Mozilla/5.0 (compatible; YandexBot/3.0; +http://yandex.com/bots) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/108.0.0.0":                                        true,
	"Mozilla/5.0 (compatible; YandexBot/3.0; +http://yandex.com/bots)":                                                                                                true,
	"Mozilla/5.0 (compatible; YandexFavicons/1.0; +http://yandex.com/bots)":                                                                                           true,
	"Mozilla/5.0 (compatible; YandexImages/3.0; +http://yandex.com/bots)":                                                                                             true,
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	"navigation":          true,
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	"SafeDNSBot (https://www.safedns.com/searchbot)":                                                   true,
	"Sellers.Guide Crawler by Primis":                                                                  true,
	"semanticbot":                                                                                      true,
	"SEMrushBot":                                                                                       true,
	"SeRanking SEOChecker":                                                                             true,
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	"tiny.write.as":                                                                                          true,
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	"Twingly Recon":                                                                                          true,
	"Twitterbot":                                                                                             true,
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	"webscraper":                                                                                             true,
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	"write.as":                                                                                               true,
	"WriteFreely.org Crawler (https://writefreely.org/instances)":                         true,
	"Y!J-ASR/0.1 crawler (http://www.yahoo-help.jp/app/answers/detail/p/595/a_id/42716/)": true,
	"YisouSpider": true,
	"ZoominfoBot (zoominfobot at zoominfo dot com)": true,
}

var botPrefixes = []string{
	"AdsTxtCrawler/",
	"Akkoma ",
	"Apache-HttpClient/",
	"bitlybot/",
	"curl/",
	"DuckDuckBot/",
	"facebookexternalhit/",
	"FediDB/",
	"Friendica",
	"Googlebot-Image/",
	"Googlebot/",
	"hackney/",
	"http.rb/",
	"kbinBot ",
	"libwww-perl/",
	"Mediumbot-MetaTagFetcher/",
	"Mozilla/5.0 (compatible; AhrefsBot/",
	"Mozilla/5.0 (compatible; Applebot/",
	"Mozilla/5.0 (compatible; archive.org_bot",
	"PHP/",
	"PixelFedBot/",
	"Pleroma ",
	"python-requests/",
	"Python-urllib/",
	"RepoLookoutBot/",
	"Screaming Frog SEO Spider/",
	"semanticbot ",
	"SummalyBot/",
	"TelegramBot",
	"Twingly Recon-",
	"Twitterbot/",
	"WhatsApp/",
	"yacybot ",
}

var botPhrases = []string{
	"bingbot",
	"Googlebot",
	"archive.org_bot",
}

// IsBot returns whether or not the provided User-Agent string is a known bot
// or crawler.
func IsBot(ua string) bool {
	if ua == "" {
		return true
	}
	if _, ok := bots[ua]; ok {
		return true
	}
	for _, p := range botPrefixes {
		if strings.HasPrefix(ua, p) {
			return true
		}
	}
	for _, p := range botPhrases {
		if strings.Contains(ua, p) {
			return true
		}
	}
	return false
}