屏蔽Semrush、Ahrefs等恶意垃圾蜘蛛爬虫加速网站访问 - 做SEO的邮差 - RankSeoer.com - RankSeoer.com - RankSeoer.com - RankSeoer.com

对于SEMrush蜘蛛来说，我们感觉目前没多大用处，另考虑到占用服务器资源，我们决定屏蔽掉。另外还有几个蜘蛛根据情况来屏蔽：

1、MJ12Bot

MJ12Bot 是英国著名SEO公司Majestic的网络爬虫，其抓取网页给需要做SEO的人用，不会给网站带来流量。

2、AhrefsBot

AhrefsBot 是知名SEO公司Ahrefs的网页爬虫。其同样抓取网页给SEO专业人士用，不会给网站带来流量。

3、SEMrushBot

SEMrushBot 也是SEO、营销公司的网络爬虫。

4、DotBot

DotBot 是 Moz.com 的网页爬虫，抓取数据用来支持 Moz tools 等工具。

5、MauiBot

MauiBot 不同于其他爬虫，这个爬虫连网站都没有，UA只显示一个邮箱：”MauiBot (crawler.feedback+wc@gm ail.com)“。神奇的是这个看起来是个人爬虫，竟然遵循robots协议，算得上垃圾爬虫的一股清流。

6、MegaIndex.ru

这是一个提供反向链接查询的网站的蜘蛛，因此它爬网站主要是分析链接，并没有什么作用。遵循robots协议。

7、BLEXBot

这个是webmeup下面的蜘蛛，作用是收集网站上面的链接，对我们来说并没有用处。遵循robots协议。

首先因为这个蜘蛛爬行并不会给网站带来流量，只会占用服务器资源，其次是这是已经数据分析公司的爬虫，它爬的数据会成为你竞争对手的分析利器。

1、通过robots.txt禁止

User-agent: SemrushBot

Disallow: /

User-agent: Semrushbot-SA

Disallow: /

User-agent: Semrushbot-SI

Disallow: /

User-agent: AhrefsBot

Disallow: /

User-agent: DotBot

Disallow: /

User-agent: MegaIndex.ru

Disallow: /

User-agent: MauiBot

Disallow: /

User-agent: MJ12bot

Disallow: /

User-agent: BLEXBot

Disallow: /

2、web层面通过UA禁止

对于不遵循robots协议的爬虫，可以在web软件层面通过UA屏蔽。下面以 Nginx 为例介绍，操作为：在网站配置的server段内，新增类似如下指令：

server {
   ... 一些网站配置
   # 屏蔽curl/httpclient抓取
   if ($http_user_agent ~* curl|httpclient) {
     return 403;
   }
   # 屏蔽MauiBot等爬虫
   if ($http_user_agent ~* MauiBot|AhrefsBot|DotBot) {
     return 403;
   }
   ... 其他配置

至于一共有哪些搜索引擎爬虫或者蜘蛛，国外也进行了收集，如下

if（$ http_user_agent〜*（360Spider | 80legs.com | Abonti | AcoonBot | Acunetix | adbeat_bot | AddThis.com | adixxbot | ADmantX | AhrefsBot | AngloINFO |羚羊| Applebot | BaiduSpider | BeetleBot | billigerbot | binlar | idbot | BoardReader | Bolt \ 0 | BOT \ for \ JCE | Bot \ mailto \：craftbot @ yahoo \ .com | casper | CazoodleBot | CCBot | checkprivacy | ChinaClaw | chromeframe | Clerkbot | Cliqzbot | clshttp | CommonCrawler | comodo | CPython | crawler4j | Crawlera | CRAZYWEBCRAWLER | Curious | Curl | Custo | CWS_proxy | Default \ Browser \ 0 | diavol | DigExt | Digincore | DIIbot | discobot | DISCo | DoCoMo | DotBot | Download \ Demon | DTS。代理| EasouSpider | eCatch | ecxi | EirGrabber | Elmer | EmailCollector | EmailSiphon | EmailWolf | Exabot | ExaleadCloudView | ExpertSearchSpider | ExpertSearch | Express \ WebPictures | ExtractorPro | Extract | EyeNetIE | Ezooms | F2S | FastSeek | Bet | bot Flamingo_SearchEngine | FlappyBot | FlashGet | flicky | Flipboard | g00g1e | Genieo | genieo | GetRight | GetWeb \！| GigablastOpenSource | GozaikBot | Go \！Zilla | Go \ -Ahead \ -Got \ -It | GrabNet | Grafula | GrapeshotCrawler | GTB5 | GT \：\：WWW | Guzzle | harvest | heritrix | HMView | HomePageBot | HTTP \：\：Lite | HTTrack | HubSpot | ia_archiver | icarus6 | IDBot | id \ -search | IlseBot | Image \ Stripper | Image \ Sucker | Indigonet | Indy \ Library | integromedb | InterGET | InternetSeer \ .com | Internet \ Ninja | IRLbot | ISC \ Systems \ iRc \ Search \ 2 \。1 | jakarta | Java | JetCar | JobdiggerSpider | JOC \ Web \ Spider | Jooblebot |神奈川县| KINGSpider | kmccrew | larbin | LeechFTP | libwww | Lingewoud | LinkChecker | linkdexbot | LinksCrawler | LinksManager \ .com_bot | linkwalker | LinqiaRSSBlt | x || LubbersBot | lwp \ -trivial | Mail.RU_Bot | masscan | Mass \下载器| maverick | Maxthon $ | Mediatoolkitbot | MegaIndex | MegaIndex | megaindex | MFC_Tear_Sample | Microsoft \ URL \ Control | microsoft \ .url | MIDown \工具| miner | Missigua \ Locator | Mister \ PiX | mj12bot | Mozilla。* Indy | Mozilla。* NEWT | MSFrontPage | msnbot | Navroad | NearSite | NetAnts | netEstate | NetSpider | NetZIP | Net \ Vampire | NextGenSearchBot | nutch | Octopus | Offline \ Explorer | Offline \ Navigator | OpenindexSpider | OpenWebSpider | OrangeBot | Owlin | PageGrabber | PagesInventory | panopta | panscient \ .com | Papa \ Foto | pavuk | pcBrowser | PECL \：\ :: HTTP | PeoplePal | Photon | PHPCrawl | planetwork | PleaseCrawl | PNAMAIN。EXE | PodcastPartyBot |最出色的|代理| psbot | purebot | pycurl | QuerySeekerSpider | R6_CommentReader | R6_FeedFetcher | RealDownload | ReGet | Riddler | Rippers \ 0 | rogerbot | RSSingBot | rv \：1.9.1 | RyzeCrawler | SafeSearch | Screaming | SeaMonkey $ | search.goo.ne.jp | SearchmetricsBot | search_robot | SemrushBot | Semrush | SentiBot | SEOcks | SeznamBot | ShowyouBot | SightupBot | SISTRIX | sitecheck \ .internetseer \ .com | siteexplorer.info | SiteSnagger | sky Slackbot | Slurp | SmartDownload | Snoopy | Sogou | Sosospider | spaumbot | Steeler |吸盘| SuperBot | Superfeedr | SuperHTTP | SurdotlyBot | Surfbot | tAkeOut | Teleport \ Pro | TinEye-bot | TinEye | Toata \ dragostea \ mea | mea \ pentru \ Toplistbot | trendictionbot | TurnitinBot | turnit | Twitterbot | URI \：\：Fetch | urllib | Vagabondo | Vagabondo | vikspider | VoidEYE | VoilaBot | WBSearchBot | webalta | WebAuto | WebBandit | WebCollage | WebCopier | WebFetch | WebGo \ IS | WebLeacher | WebReaper | WebSauger | Website \ eXtractor | Web站点| Quester | WebStr WebZIP | Web \图像\收集器| Web \ Sucker | Wells \ Search \ II | WEP \ Search | WeSEE | Wget | Widow | WinInet | woobot | woopingbot | worldwebheritage.org | Wotbox | WPScan | WWWOFFLE | WWW \ -Mechanize | Xaldon \ WebSpider | XoviBot | yacybot | Yahoo | YandexBot | Yandex | YisouSpider | zermelo | Zeus | zh-CN | ZmEu | ZumBot | ZyBorg））{org | Wotbox | WPScan | WWWOFFLE | WWW \ -Mechanize | Xaldon \ WebSpider | XoviBot | yacybot | Yahoo | YandexBot | Yandex | YisouSpider | zermelo | Zeus | zh-CN | ZmEu | ZumBot | ZyBorg））{org | Wotbox | WPScan | WWWOFFLE | WWW \ -Mechanize | Xaldon \ WebSpider | XoviBot | yacybot | Yahoo | YandexBot | Yandex | YisouSpider | zermelo | Zeus | zh-CN | ZmEu | ZumBot | ZyBorg））{
    返回410;
}

User-agent: Semrushbot-SA

Disallow: /

User-agent: Semrushbot-SI

Disallow: /

User-agent: aipbot

Disallow: /

User-agent: ia_archiver

Disallow: /

User-agent: AhrefsBot

Disallow: /

User-agent: Alexibot

Disallow: /

User-agent: Aqua_Products

Disallow: /

User-agent: asterias

Disallow: /

User-agent: b2w/0.1

Disallow: /

User-agent: BackDoorBot/1.0

Disallow: /

User-agent: becomebot

Disallow: /

User-agent: BlowFish/1.0

Disallow: /

User-agent: Bookmark search tool

Disallow: /

User-agent: BotALot

Disallow: /

User-agent: BotRightHere

Disallow: /

User-agent: BuiltBotTough

Disallow: /

User-agent: Bullseye/1.0

Disallow: /

User-agent: BunnySlippers

Disallow: /

User-agent: CheeseBot

Disallow: /

User-agent: CherryPicker

Disallow: /

User-agent: CherryPickerElite/1.0

Disallow: /

User-agent: CherryPickerSE/1.0

Disallow: /

User-agent: Copernic

Disallow: /

User-agent: CopyRightCheck

Disallow: /

User-agent: cosmos

Disallow: /

User-agent: Crescent

Disallow: /

User-agent: Crescent Internet ToolPak HTTP OLE Control v.1.0

Disallow: /

User-agent: DittoSpyder

Disallow: /

User-agent: dotbot

Disallow: /

User-agent: EmailCollector

Disallow: /

User-agent: EmailSiphon

Disallow: /

User-agent: EmailWolf

Disallow: /

User-agent: EroCrawler

Disallow: /

User-agent: exabot

Disallow: /

User-agent: ExtractorPro

Disallow: /

User-agent: FairAd Client

Disallow: /

User-agent: Fasterfox

Disallow: /

User-agent: Flaming AttackBot

Disallow: /

User-agent: Foobot

Disallow: /

User-agent: gigabot

Disallow: /

User-agent: Gaisbot

Disallow: /

User-agent: GetRight/4.2

Disallow: /

User-agent: Harvest/1.5

Disallow: /

User-agent: hloader

Disallow: /

User-agent: httplib

Disallow: /

User-agent: HTTrack 3.0

Disallow: /

User-agent: humanlinks

Disallow: /

User-agent: ia_archiver

Disallow: /

User-agent: IconSurf

Disallow: /

Disallow: /favicon.ico

User-agent: InfoNaviRobot

Disallow: /

User-agent: Iron33/1.0.2

Disallow: /

User-agent: JennyBot

Disallow: /

User-agent: Kenjin Spider

Disallow: /

User-agent: Keyword Density/0.9

Disallow: /

User-agent: larbin

Disallow: /

User-agent: LexiBot

Disallow: /

User-agent: libWeb/clsHTTP

Disallow: /

User-agent: LinkextractorPro

Disallow: /

User-agent: LinkScan/8.1a Unix

Disallow: /

User-agent: LinkWalker

Disallow: /

User-agent: LNSpiderguy

Disallow: /

User-agent: lwp-trivial

Disallow: /

User-agent: lwp-trivial/1.34

Disallow: /

User-agent: Mata Hari

Disallow: /

User-agent: Microsoft URL Control

Disallow: /

User-agent: Microsoft URL Control - 5.01.4511

Disallow: /

User-agent: Microsoft URL Control - 6.00.8169

Disallow: /

User-agent: MJ12bot

Disallow: /

User-agent: MIIxpc

Disallow: /

User-agent: MIIxpc/4.2

Disallow: /

User-agent: Mister PiX

Disallow: /

User-agent: moget

Disallow: /

User-agent: moget/2.1

Disallow: /

User-agent: Mozilla/4.0 (compatible; BullsEye; Windows 95)

Disallow: /

User-agent: MSIECrawler

Disallow: /

User-agent: NetAnts

Disallow: /

User-agent: NICErsPRO

Disallow: /

User-agent: Offline Explorer

Disallow: /

User-agent: Openbot

Disallow: /

User-agent: Openfind

Disallow: /

User-agent: Openfind data gatherer

Disallow: /

User-agent: Oracle Ultra Search

Disallow: /

User-agent: PerMan

Disallow: /

User-agent: ProPowerBot/2.14

Disallow: /

User-agent: ProWebWalker

Disallow: /

User-agent: psbot

Disallow: /

User-agent: Python-urllib

Disallow: /

User-agent: QueryN Metasearch

Disallow: /

User-agent: Radiation Retriever 1.1

Disallow: /

User-agent: RepoMonkey

Disallow: /

User-agent: RepoMonkey Bait & Tackle/v1.01

Disallow: /

User-agent: RMA

Disallow: /

User-agent: rogerbot

disallow: /

User-agent: searchpreview

Disallow: /

User-agent: SiteSnagger

Disallow: /

User-agent: SpankBot

Disallow: /

User-agent: spanner

Disallow: /

User-agent: SurveyBot

Disallow: /

User-agent: suzuran

Disallow: /

User-agent: Szukacz/1.4

Disallow: /

User-agent: Teleport

Disallow: /

User-agent: TeleportPro

Disallow: /

User-agent: Telesoft

Disallow: /

User-agent: The Intraformant

Disallow: /

User-agent: TheNomad

Disallow: /

User-agent: TightTwatBot

Disallow: /

User-agent: toCrawl/UrlDispatcher

Disallow: /

User-agent: True_Robot

Disallow: /

User-agent: True_Robot/1.0

Disallow: /

User-agent: turingos

Disallow: /

User-agent: TurnitinBot

Disallow: /

User-agent: TurnitinBot/1.5

Disallow: /

User-agent: URL Control

Disallow: /

User-agent: URL_Spider_Pro

Disallow: /

User-agent: URLy Warning

Disallow: /

User-agent: VCI

Disallow: /

User-agent: VCI WebViewer VCI WebViewer Win32

Disallow: /

User-agent: Web Image Collector

Disallow: /

User-agent: WebAuto

Disallow: /

User-agent: WebBandit

Disallow: /

User-agent: WebBandit/3.50

Disallow: /

User-agent: WebCapture 2.0

Disallow: /

User-agent: WebCopier

Disallow: /

User-agent: WebCopier v.2.2

Disallow: /

User-agent: WebCopier v3.2a

Disallow: /

User-agent: WebEnhancer

Disallow: /

User-agent: WebSauger

Disallow: /

User-agent: Website Quester

Disallow: /

User-agent: Webster Pro

Disallow: /

User-agent: WebStripper

Disallow: /

User-agent: WebZip

Disallow: /

User-agent: WebZip

Disallow: /

User-agent: WebZip/4.0

Disallow: /

User-agent: WebZIP/4.21

Disallow: /

User-agent: WebZIP/5.0

Disallow: /

User-agent: Wget

Disallow: /

User-agent: wget

Disallow: /

User-agent: Wget/1.5.3

Disallow: /

User-agent: Wget/1.6

Disallow: /

User-agent: WWW-Collector-E

Disallow: /

User-agent: Xenu's

Disallow: /

User-agent: Xenu's Link Sleuth 1.1c

Disallow: /

User-agent: Zeus

Disallow: /

User-agent: Zeus 32297 Webster Pro V2.9 Win32

Disallow: /

User-agent: Zeus Link Scout

Disallow: /

User-agent: *

Disallow: /js

Disallow: *.js