Moz Q&A is closed.
After more than 13 years, and tens of thousands of questions, Moz Q&A closed on 12th December 2024. Whilst we’re not completely removing the content - many posts will still be possible to view - we have locked both new posts and new replies. More details here.
May know what's the meaning of these parameters in .htaccess?
-
Begin HackRepair.com Blacklist
RewriteEngine on
Abuse Agent Blocking
RewriteCond %{HTTP_USER_AGENT} ^BlackWidow [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^Bolt\ 0 [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^Bot\ mailto:[email protected] [NC,OR]
RewriteCond %{HTTP_USER_AGENT} CazoodleBot [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^ChinaClaw [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^Custo [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^Default\ Browser\ 0 [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^DIIbot [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^DISCo [NC,OR]
RewriteCond %{HTTP_USER_AGENT} discobot [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^Download\ Demon [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^eCatch [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ecxi [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^EirGrabber [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^EmailCollector [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^EmailSiphon [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^EmailWolf [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^Express\ WebPictures [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^ExtractorPro [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^EyeNetIE [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^FlashGet [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^GetRight [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^GetWeb! [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^Go!Zilla [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^Go-Ahead-Got-It [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^GrabNet [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^Grafula [NC,OR]
RewriteCond %{HTTP_USER_AGENT} GT::WWW [NC,OR]
RewriteCond %{HTTP_USER_AGENT} heritrix [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^HMView [NC,OR]
RewriteCond %{HTTP_USER_AGENT} HTTP::Lite [NC,OR]
RewriteCond %{HTTP_USER_AGENT} HTTrack [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ia_archiver [NC,OR]
RewriteCond %{HTTP_USER_AGENT} IDBot [NC,OR]
RewriteCond %{HTTP_USER_AGENT} id-search [NC,OR]
RewriteCond %{HTTP_USER_AGENT} id-search.org [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^Image\ Stripper [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^Image\ Sucker [NC,OR]
RewriteCond %{HTTP_USER_AGENT} Indy\ Library [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^InterGET [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^Internet\ Ninja [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^InternetSeer.com [NC,OR]
RewriteCond %{HTTP_USER_AGENT} IRLbot [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ISC\ Systems\ iRc\ Search\ 2.1 [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^Java [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^JetCar [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^JOC\ Web\ Spider [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^larbin [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^LeechFTP [NC,OR]
RewriteCond %{HTTP_USER_AGENT} libwww [NC,OR]
RewriteCond %{HTTP_USER_AGENT} libwww-perl [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^Link [NC,OR]
RewriteCond %{HTTP_USER_AGENT} LinksManager.com_bot [NC,OR]
RewriteCond %{HTTP_USER_AGENT} linkwalker [NC,OR]
RewriteCond %{HTTP_USER_AGENT} lwp-trivial [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^Mass\ Downloader [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^Maxthon$ [NC,OR]
RewriteCond %{HTTP_USER_AGENT} MFC_Tear_Sample [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^microsoft.url [NC,OR]
RewriteCond %{HTTP_USER_AGENT} Microsoft\ URL\ Control [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^MIDown\ tool [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^Mister\ PiX [NC,OR]
RewriteCond %{HTTP_USER_AGENT} Missigua\ Locator [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^Mozilla.*Indy [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^Mozilla.NEWT [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^MSFrontPage [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^Navroad [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^NearSite [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^NetAnts [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^NetSpider [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^Net\ Vampire [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^NetZIP [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^Nutch [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^Octopus [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^Offline\ Explorer [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^Offline\ Navigator [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^PageGrabber [NC,OR]
RewriteCond %{HTTP_USER_AGENT} panscient.com [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^Papa\ Foto [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^pavuk [NC,OR]
RewriteCond %{HTTP_USER_AGENT} PECL::HTTP [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^PeoplePal [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^pcBrowser [NC,OR]
RewriteCond %{HTTP_USER_AGENT} PHPCrawl [NC,OR]
RewriteCond %{HTTP_USER_AGENT} PleaseCrawl [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^psbot [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^RealDownload [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^ReGet [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^Rippers\ 0 [NC,OR]
RewriteCond %{HTTP_USER_AGENT} SBIder [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^SeaMonkey$ [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^sitecheck.internetseer.com [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^SiteSnagger [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^SmartDownload [NC,OR]
RewriteCond %{HTTP_USER_AGENT} Snoopy [NC,OR]
RewriteCond %{HTTP_USER_AGENT} Steeler [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^SuperBot [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^SuperHTTP [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^Surfbot [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^tAkeOut [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^Teleport\ Pro [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^Toata\ dragostea\ mea\ pentru\ diavola [NC,OR]
RewriteCond %{HTTP_USER_AGENT} URI::Fetch [NC,OR]
RewriteCond %{HTTP_USER_AGENT} urllib [NC,OR]
RewriteCond %{HTTP_USER_AGENT} User-Agent [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^VoidEYE [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^Web\ Image\ Collector [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^Web\ Sucker [NC,OR]
RewriteCond %{HTTP_USER_AGENT} Web\ Sucker [NC,OR]
RewriteCond %{HTTP_USER_AGENT} webalta [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^WebAuto [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^[Ww]eb[Bb]andit [NC,OR]
RewriteCond %{HTTP_USER_AGENT} WebCollage [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^WebCopier [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^WebFetch [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^WebGo\ IS [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^WebLeacher [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^WebReaper [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^WebSauger [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^Website\ eXtractor [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^Website\ Quester [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^WebStripper [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^WebWhacker [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^WebZIP [NC,OR]
RewriteCond %{HTTP_USER_AGENT} Wells\ Search\ II [NC,OR]
RewriteCond %{HTTP_USER_AGENT} WEP\ Search [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^Wget [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^Widow [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^WWW-Mechanize [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^WWWOFFLE [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^Xaldon\ WebSpider [NC,OR]
RewriteCond %{HTTP_USER_AGENT} zermelo [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^Zeus [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^(.)Zeus.Webster [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ZyBorg [NC]
RewriteRule ^. - [F,L]Abuse bot blocking rule end
End HackRepair.com Blacklist
-
Now it's clear. Thanks a lot ThompsonPaul!
-
Thanks!
Typically these blacklists are created and maintained by security specialists who have done testing on the different bots to determine which are legit/beneficial and which are crapbots. They then provide these lists for others to use. Often the lists are amalgamations of bots detected and analysed on a number of different sites and by a number of different specialists to act as a double-check for each other.
You do need to be careful that you are using a well-curated list, as carelessly blocking bots can cause problems for legitimate bots. You would check out the creator of such a list the same way you'd check out the creator of a plugin you're considering using - check reviews, look at comments and responses on the post that provides the blacklist etc.
That answer your question?
Paul
-
Hi ThompsonPaul,
Wow! Superb explanation. One thing I just want to clarify, how would I know if these bots are "bad bots".
Thanks a lot!
-
As Lynn mentions, these entries form a blacklist for "bad bots". These are bots that are identified as being harmful (or at least non-helpful) to the real use of a website. Bots are essentially spiders that crawl and record the pages of your site the same way the GoogleBot does.There are 2 main reasons for blocking them
-
Too many unnecessary bots can put a real strain on server resources, causing the site to slow down for real users. This can be especially problematic with bad bots as they do not respect the entries in your robots.txt file and so will crawl even blocked pages. This can mean huge numbers of extra pages get crawled, leading to even more load.
-
Many (most?) of these bots are collecting data for nefarious purposes. Some are scrapers to collect your site content in order to re-use it illegally on another site, some are scanning for certain files/plugins on your site known to be insecure so they can target them for attack, etc.
Best case scenario, these bots waste your bandwidth and can cause site slowdowns on low-powered (e.g. shared) servers. Worst case, they can actually cause harm to your site.
There are literally many thousands of these types of bots out there, and their creators often change their identifying user agents just to get around these types of blacklists. But many have been around for some time and still use the same identifier. So having a blacklist to block the most common of them is actually very good security practice. To be totally proactive however, you'd need to update the list every couple of months.
Bottom line - those entries are providing some security and overload protection for your site, and there's essentially no downside to having them in place even if they're not catching everything.
Hope that helps - if any of my explanation isn't clear, just holler
Paul
-
-
Thanks Lynn! I'll just remove these parameters and leave this one:
BEGIN WordPress
<ifmodule mod_rewrite.c="">RewriteEngine On
RewriteBase /
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /index.php [L]
Rewritecond %{http_host} ^domain.com [NC]
Rewriterule ^(.*)$ http://www.domain.com/$1 [R=301,NC]</ifmodule>END WordPress
-
I dont use something like this myself. I suppose if you are having some problem with bots it might be useful, maybe someone else can chime in if they have some experience with this kind of blocking.
-
Thanks Lynn! Is this really necessary?
-
HI,
It is checking to see if the visiting user agent contains any of these strings (NC is telling it non case sensitive) and if it does to return a 403 forbidden message.
Browse Questions
Explore more categories
-
Moz Tools
Chat with the community about the Moz tools.
-
SEO Tactics
Discuss the SEO process with fellow marketers
-
Community
Discuss industry events, jobs, and news!
-
Digital Marketing
Chat about tactics outside of SEO
-
Research & Trends
Dive into research and trends in the search industry.
-
Support
Connect on product support and feature requests.
Related Questions
-
How does educational organization schema interact with Google's knowledge graph?
Hi there! I was just wondering if the granular options of the Organization schema, like Educational Organization (http://schema.org/EducationalOrganization) and CollegeOrUniversity (http://schema.org/CollegeOrUniversity) schema work the same when it comes to pulling data into the knowledge graph. I've typically always used the Organization schema for customers but was wondering if there are any drawbacks for going deep into the hierarchy of schema. Cheers 😄
Intermediate & Advanced SEO | | Corbec8880 -
Need a layman's definition/analogy of the difference between schema and structured data
I'm currently writing a blog post about schema. However I want to set the record straight that schema is not exactly the same as structured data, although both are often used interchangeably. I understand this schema.org is a vocabulary of global identifiers for properties and things. Structured data is what Google officially stated as "a standard way to annotate your content so machines can understand it..." Does anybody know of a good analogy to compare the two? Thanks!
Intermediate & Advanced SEO | | RosemaryB0 -
Partial Match or RegEx in Search Console's URL Parameters Tool?
So I currently have approximately 1000 of these URLs indexed, when I only want roughly 100 of them. Let's say the URL is www.example.com/page.php?par1=ABC123=&par2=DEF456=&par3=GHI789= All the indexed URLs follow that same kinda format, but I only want to index the URLs that have a par1 of ABC (but that could be ABC123 or ABC456 or whatever). Using URL Parameters tool in Search Console, I can ask Googlebot to only crawl URLs with a specific value. But is there any way to get a partial match, using regex maybe? Am I wasting my time with Search Console, and should I just disallow any page.php without par1=ABC in robots.txt?
Intermediate & Advanced SEO | | Ria_0 -
Other domains hosted on same server showing up in SERP for 1st site's keywords
For the website in question, the first domain alphabetically on the shared hosting space, strange search results are appearing on the SERP for keywords associated with the site. Here is an example: A search for "unique company name" shows the results: www.uniquecompanyname.com as the top result. But on pages 2 and 3, we are getting results for the same content but for domains hosted on the same server. Here are some examples with the domain name replaced: UNIQUE DOMAIN NAME PAGE TITLE
Intermediate & Advanced SEO | | Motava
ftp.DOMAIN2.com/?action=news&id=63
META DESCRIPTION TEXT UNIQUE DOMAIN NAME PAGE TITLE 2
www.DOMAIN3.com/?action=news&id=120
META DESCRIPTION TEXT2 UNIQUE DOMAIN NAME PAGE TITLE 2
www.DOMAIN4.com/?action=news&id=120
META DESCRIPTION TEXT2 UNIQUE DOMAIN NAME PAGE TITLE 3
mail.DOMAIN5.com/?action=category&id=17
META DESCRIPTION TEXT3 ns5.DOMAIN6.com/?action=article&id=27 There are more but those are just some examples. These other domain names being listed are other customer domains on the same VPS shared server. When clicking the result the browser URL still shows the other customer domain name B but the content is usually the 404 page. The page title and meta description on that page is not displayed the same as on the SERP.As far as we can tell, this is the only domain this is occurring for.So far, no crawl errors detected in Webmaster Tools and moz crawl not completed yet.0 -
What's the deal with significantLinks?
http://schema.org/significantLink Schema.org has a definition for "non-navigation links that are clicked on the most." Presumably this means something like the big green buttons on Moz's homepage. But does anyone know how they affect anything? In http://a-moz.groupbuyseo.org/blog/schemaorg-a-new-approach-to-structured-data-for-seo#comment-142936, Jeremy Nelson says " It's quite possible that significant links will pass anchor text as well if a previous link to the page was set in navigation, effictively making obselete the first-link-counts rule, and I am interested in putting that to test." This is a pretty obscure comment but it's one of the only results I could find on the subject. Is this BS? I can't even make out what all of it is saying. So what's the deal with significantLinks and how can we use them to SEO?
Intermediate & Advanced SEO | | NerdsOnCall0 -
Creating 100,000's of pages, good or bad idea
Hi Folks, Over the last 10 months we have focused on quality pages but have been frustrated with competition websites out ranking us because they have bigger sites. Should we focus on the long tail again? One option for us is to take every town across the UK and create pages using our activities. e.g. Stirling
Intermediate & Advanced SEO | | PottyScotty
Stirling paintball
Stirling Go Karting
Stirling Clay shooting We are not going to link to these pages directly from our main menus but from the site map. These pages would then show activities that were in a 50 mile radius of the towns. At the moment we have have focused our efforts on Regions, e.g. Paintball Scotland, Paintball Yorkshire focusing all the internal link juice to these regional pages, but we don't rank high for towns that the activity sites are close to. With 45,000 towns and 250 activities we could create over a million pages which seems very excessive! Would creating 500,000 of these types of pages damage our site? This is my main worry, or would it make our site rank even higher for the tougher keywords and also get lots of traffic from the long tail like we used to get. Is there a limit to how big a site should be? edit0 -
Does Google crawl the pages which are generated via the site's search box queries?
For example, if I search for an 'x' item in a site's search box and if the site displays a list of results based on the query, would that page be crawled? I am asking this question because this would be a URL that is non existent on the site and hence am confused as to whether Google bots would be able to find it.
Intermediate & Advanced SEO | | pulseseo0 -
Tool to calculate the number of pages in Google's index?
When working with a very large site, are there any tools that will help you calculate the number of links in the Google index? I know you can use site:www.domain.com to see all the links indexed for a particular url. But what if you want to see the number of pages indexed for 100 different subdirectories (i.e. www.domain.com/a, www.domain.com/b)? is there a tool to help automate the process of finding the number of pages from each subdirectory in Google's index?
Intermediate & Advanced SEO | | nicole.healthline0