Convention to prevent webcrawlers from indexing your website.

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Optimizing and securing robots.txt [migrated]

I have a couple of doubts / questions / ideas related to robots.txt: Can we deny website for all bots except for chosen ones in order to tell other bots not to crawl site: User-agent: * Disallow: / ...
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1answer
46 views

Thousands of robots.txt 404 errors from bots trying to crawl old multisite

Current situation is that we are getting thousands and thousands of 404 errors from bots looking for robots.txt in different places on our site due to domain redirects. Our old website was a ...
3
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1answer
80 views

Why is googlebot requesting robots.txt from my SSH server?

I run ossec on my server and periodically I receive a warning like this: Received From: myserver->/var/log/auth.log Rule: 5701 fired (level 8) -> "Possible attack on the ssh server (or version ...
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2answers
300 views

How to set robots.txt globally in nginx for all virtual hosts

I am trying to set robots.txt for all virtual hosts under nginx http server. I was able to do it in Apache by putting the following in main httpd.conf: <Location "/robots.txt"> SetHandler ...
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1answer
89 views

Googlebot cant access my site webmaster tools reply Unreachable robots.txt

When I try to fetch my site as a googlebot in webmaster tools it return Unreachable robots.txt, after investigate I understood google bot can see my server: tcpdump | grep google It returns that ...
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0answers
119 views

Google-Bot fell in love with my 404-page

Every day my access-log looks kind of this: 66.249.78.140 - - [21/Oct/2013:14:37:00 +0200] "GET /robots.txt HTTP/1.1" 200 112 "-" "Mozilla/5.0 (compatible; Googlebot/2.1; ...
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1answer
38 views

Ideal robots.txt for a gitweb installation?

I host a few git repositories at git.nomeata.de using gitweb (and gitolite). Occasionally, a search engine spider comes along and begins to hammer the interface. While I generally do want my git ...
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2answers
145 views

Dynamic robots.txt based on hostname

Is there a way to swap out a robots.txt file in nginx based on hostname? I currently have www.domain.com and backup.domain.com pointing at the same nginx server, but I don't want Google indexing ...
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1answer
62 views

Is there a chance to block images spiders / bots on dedicated servers without using robots.txt or .htaccess?

We know that we can block certain spiders from crawling websites pages using robots.txt or .htaccess or maybe via the Apache configuration File httpd.conf. But that requires to edit may be a large ...
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2answers
209 views

Blocking bad bots

I found this script and was wondering if this is just overkill and even worth using? Is it better for me to just use mod_security? # Generated using http://solidshellsecurity.com services # Begin ...
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1answer
63 views

robots.txt for subdomain iis7

I have two different sites in iis7 both point to the same folder they have different subdomains www.sitename.com foo.sitename.com they are essentially the same website, but it runs different logic ...
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1answer
51 views

If I redirect all users (Except me) from within .htaccess, do I need a robots.txt file

So.. I have my live version of my site e.g v1.0 at domain.com I then have my development testing version at testing.domain.com I want testing.domain.com to only be accessible to me for testing, and ...
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3answers
150 views

Block Offline Browsers

Is there a way to block offline browsers (like Teleport Pro, Webzip, etc...) that are showed in the logs as "Mozilla"? Example: Webzip is showed in my site logs as "Mozilla/4.0 (compatible; MSIE 8.0; ...
2
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2answers
97 views

IIS Spikes in anonymous users - crippling my server

I have a server running windows server 2008 R2, recently my websites have becoming unresponsive at least once a day, seemingly at random intervals. I have installed some monitoring software and ...
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0answers
126 views

How to block urls that request for robots.txt in lighttpd?

We have a dedicated development server which runs only test PHP applications on a public network. We have setup session-based authentication for the site. The issue we have is there are lots of 404s ...
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2answers
469 views

How to create a global robots.txt that gets appended to each domain's own robots.txt on Apache?

I know can create ONE robots.txt file for all domains on an Apache server*, but I want to append to each domain's (if pre-existing) robots.txt. I want some general rules in place for all domains, but ...
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1answer
46 views

How to Disallow Particular Path in robots.txt

I want to disallow /path but also wanna allow /path/another-path in robots.txt. I already tried: Disallow: /path Or: Disallow: /path$ But doesn't work, I mean it blocked /path/another-path too. ...
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2answers
309 views

how to rewrite or redirect old or missing or invalid url to 404 page [duplicate]

Possible Duplicate: Everything You Ever Wanted to Know about Mod_Rewrite Rules but Were Afraid to Ask? I recently upgraded a site and almost all URLs have changed. I have redirected all of ...
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3answers
1k views

How do I use robots.txt to disallow crawling for only my subdomains?

If I want my main website to on search engines, but none of the subdomains to be, should I just put the "disallow all" robots.txt in the directories of the subdomains? If I do, will my main domain ...
0
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1answer
260 views

webcrawler bots load test my website and it fails the test

we run a commerical website with a relavitely few number of customer at any one time ~30 users . Frequently a webcrawler such as google bot, bing bot, and 80legs will bring our site to a grinding ...
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3answers
2k views

Why are Facebook's servers hitting my site nearly once per minute (and the time gap is decreasing)?

For about 4 hours now Facebook's servers have been hitting my site every 5 mins at the start, but now at least once per minute. Getting this in logs 66.220.153.246 - - [25/Apr/2012:20:08:49 +0000] ...
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1answer
39 views

If denying crawlers access to a directory via robots.txt, will it still index a file in that directory if I direct link?

I am denying indexing to a folder called pdf via robots.txt. However, I do direct link to a few files that exist in that directory. Will search engines such as Google index those files, or ignore ...
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2answers
516 views

How can I use varnish to generate a robots.txt file even for subdomain of the same site?

I want to generate a robots.txt file using Varnish 2.1. That means that domain.com/robots.txt is served using Varnish and also subdomain.domain.com/robots.txt is also served using Varnish. The ...
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1answer
203 views

Does a forward web proxy exist that checks and obeys robots.txt on remote domains?

Does there exist a forward proxy server that will lookup and obey robots.txt files on remote internet domains and enforce them on behalf of requesters going via the proxy? e.g. Imagine a website at ...
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2answers
322 views

How to block Spiders / Scrapers by REMOTE hostname / domain for all Virtual Hosts in Apache?

I've seen plenty of robot.txt stuff, and some mod-rewrite solutions that looked promising… but haven't been able to find a simple solution to block Spiders / Scrapers / whoever the hell I want to ...
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3answers
144 views

How to prevent discovery of a secure URL?

If I have a url that is used for getting messages and I create it like so: http://www.mydomain.com/somelonghash123456etcetc and this URL allows for other services to POST messages to. Is it possible ...
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2answers
187 views

Is there a way to disallow robots crawling through IIS Management Console for entire site

Can I do the same as robots.txt through IIS settings? Telling User-agent: * Disallow: / in host header or through web.config?
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2answers
1k views

Is it good idea to ban amazonaws.com [closed]

Site are crawled by anonymous bot hosted on amazon ec2. This robot doesn't respect robots.txt and creates high load on web server so I added check if reverse IP for request ends with "amazonaws.com" ...
2
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1answer
66 views

Use robots.txt to prevent crawlers from getting old versions of Trac pages

looking at my Apache access.log I see that crawlers tend to get old versions of pages and documents, like: 119.63.196.86 - - [10/Jun/2011:10:36:31 +0200] "GET /wiki/News?version=14 HTTP/1.1" 200 6073 ...
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2answers
280 views

Weird entry in access.log on Apache 2.2

I'm running Apache 2.2, and my server runs well. Noticed this weird anomaly in my access.log file, how should I prevent it? robots.txt doesn't seem to be working. 127.0.0.1 - - [17/Apr/2011:12:17:00 ...
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1answer
115 views

Disallow xml robots.txt

Google webmaster FAQs suggest that this will exclude all xml files from search: User-agent: Googlebot Disallow: /*.xml$ Is this legal for other bots as well? User-agent: * Disallow: /*.xml$
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1answer
188 views

Cross-submission robots.txt for multiple domains on single host

We are running a site with multiple languages hosted in a single environment on IIS7. For example, oursite.com - english oursite.de - german oursite.es - spanish This is a single-host ...
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3answers
3k views

How to create robots.txt file for all domains on Apache server

We have a XAMPP Apache development web server setup with virtual hosts and want to stop serps from crawling all our sites. This is easily done with a robots.txt file. However, we'd rather not ...
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1answer
550 views

301 redirect or disallow on robots.txt?

I recently asked for 301 redirection on ServerFault and I didn't get a proper solution to my problem, but now I have a new idea: use the robots.txt to disallow certain URLs from my site to be ...
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3answers
329 views

Should I ban spiders?

A rails template script that I've been looking at automatically adds User-Agent: and Dissalow: in robots.txt thereby banning all spiders from the site What are the benefits of banning spiders and why ...
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2answers
88 views

Is this a valid robots.txt file?

I have this robots.txt file: User-agent: * Sitemap: Path_to_sitemap.xml My Q is, should I have something else in there as well? Like allow All or something? Thanks
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4answers
13k views

How Can I Encourage Google to Read New robots.txt File?

I just updated my robots.txt file on a new site; Google Webmaster Tools reports it read my robots.txt 10 minutes before my last update. Is there any way I can encourage Google to re-read my ...
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5answers
990 views

Which bots and spiders should I block in robots.txt?

In order to: Increase security of my website Reduce bandwidth requirements Prevent email address harvesting
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4answers
3k views

How do you create a single robots.txt file for all sites on an IIS instance

I want to create a single robots.txt file and have it served for all sites on my IIS (7 in this case) instance. I do not want to have to configure anything on any individual site. How can I do this? ...
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2answers
110 views

Quick Robots.txt question

Will the following robots.txt syntax correctly block all pages on the site that end in "_.php"? I don't want to accidentally block other pages. User-Agent: * Disallow: /*_.php Also, am I ...
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6answers
2k views

What happens if a website does not have a robots.txt file?

If the robots.txt file is missing in the root directory of a website, how are things treated as: the site is not indexed at all the site is indexed without any restrictions It should logically be ...
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2answers
108 views

robots.txt file with more restrictive rules for certain user agents

I'm a bit vague on the precise syntax of robots.txt, but what I'm trying to achieve is: Tell all user agents not to crawl certain pages Tell certain user agents not to crawl anything (basically, ...
0
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1answer
208 views

seems to block /my-beautiful-sef-url-123

I have robots.txt that looks like this: User-agent: * Disallow: /system/ Disallow: /admin/ Disallow: /index.php The obvious goal has been to prevent all the ugly URLs from being indexed, as they ...
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3answers
245 views

How much HDD space would I need to cache the web while respecting robot.txts? [closed]

I want to experiment with creating a web crawler. I'll start with indexing a few medium sized website like Stack Overflow or Smashing Magazine. If it works, I'd like to start crawling the entire web. ...
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2answers
2k views

Meaning of Disallow: /*? in robots.txt

Yahoo's robots.txt contains: User-agent: * Disallow: /p/ Disallow: /r/ Disallow: /*? What does the last line mean? ("Disallow: /*?")
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6answers
7k views

Blocking yandex.ru bot

I want to block all request from yandex.ru search bot. It is very traffic intensive (2GB/day). I first blocked one C class IP range, but it seems this bot appear from different IP ranges. For ...
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3answers
303 views

Does GoogleBot respect User-agent: *

I blocked a page in robots.txt under User-agent: *, and tried to do a manual removal of that URL from Google's cache in the webmasters tools. Google said it wasn't being blocked in my robots.txt, so I ...
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7answers
129 views

Robots.txt command

I have a bunch of files at www.example.com/A/B/C/NAME (A,B,C change around, NAME is static) and I basically want to add a command in robots.txt so crawlers don't follow any such links that have NAME ...
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1answer
231 views

Make Google Apps site publicly accessible while disabling crawlers with robots.txt?

I would like to create a publicly accessible Google Apps site (i.e. users do not need to be authenticated to access the content) while maintaining a policy crawlers and bots exclusion with Robots.txt. ...
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1answer
83 views

How to prevent search engines indexing a specific url

I have a url which i don't want indexed: http://www.mysite.com/moduleA?param=secretkey So when i google search for "mysite.com", i don't want the above link to appear in the search results. ...