屏蔽SemrushBot等国外垃圾营销蜘蛛的方法

方法1：在robots.txt添加如下内容

User-agent: MJ12bot
Disallow: /
User-agent: SemrushBot
Disallow: /
User-agent: SemrushBot-SA
Disallow: /
User-agent: SemrushBot-BA
Disallow: /
User-agent: SemrushBot-SI
Disallow: /
User-agent: SemrushBot-SWA
Disallow: /
User-agent: SemrushBot-CT
Disallow: /
User-agent: SemrushBot-BM
Disallow: /
User-agent: SemrushBot-SEOAB
Disallow: /
user-agent: AhrefsBot
Disallow: /
User-agent: DotBot
Disallow: /
User-agent: Uptimebot
Disallow: /
User-agent: MegaIndex.ru
Disallow: /
User-agent: ZoominfoBot
Disallow: /
User-agent: Mail.Ru
Disallow: /
User-agent: BLEXBot
Disallow: /
User-agent: ExtLinksBot
Disallow: /
User-agent: aiHitBot
Disallow: /
User-agent: Researchscan
Disallow: /
User-agent: DnyzBot
Disallow: /
User-agent: spbot
Disallow: /
User-agent: YandexBot
Disallow: /

方法二：修改nginx配置文件

#禁止垃圾蜘蛛抓取
if ($http_user_agent ~* (SemrushBot|python|Linespider|crawler|DingTalkBot|simplecrawler|ZoominfoBot|zoombot|Neevabot|coccocbot|Facebot|YandexBot|Adsbot|DotBot|Applebot|DataForSeoBot|MJ12bot|BLEXBot|trendictionbot0|trendictionbot|AhrefsBot|hubspot|opensiteexplorer|leiki|webmeup)) { 
	return 444;
}

if ($http_user_agent ~* (SemrushBot|DotBot|MJ12bot|AhrefsBot|MauiBot|MegaIndex.ru|BLEXBot|ZoominfoBot|ExtLinksBot|hubspot|leiki|webmeup)) {
return 403;
}