Googlebot does not obey robots.txt disallow
-
Hi Mozzers!
We are trying to get Googlebot to steer away from our internal search results pages by adding a parameter "nocrawl=1" to facet/filter links and then robots.txt disallow all URLs containing that parameter.
We implemented this late august and since that, the GWMT message "Googlebot found an extremely high number of URLs on your site", stopped coming.
But today we received yet another. The weird thing is that Google gives many of our nowadays robots.txt disallowed URLs as examples of URLs that may cause us problems.
What could be the reason?
Best regards,
Martin
-
Sorry for the late reply. Feel free to send me a PM. (not sure I can help, but more than happy to take a look)
-
We do not currently have any sanitation rules in order to maintain the nocrawl param. But that is a good point. 301:ing will be difficult for us but I will definitely add the nocrawl param to the rel canonical of those internal SERPs.
-
Thank you, Igol. I will definitely look into your first suggestion.
-
Thank you, Cyrus.
This is what it looks like:
User-agent: *
Disallow: /nocrawl=1The weird thing is that when testing one of the sample URLs (given by Google as "problematic" in the GWMT message and that contains the nocrawl param) on the GWMT "Blocked URLs" page by entering the contents of our robots.txt and the sample URL, Google says crawling of the URL is disallowed for Googlebot.
On the top of the same page, it says "Never" under the heading "Fetched when" (translated from Swedish..). But when i "Fetch as Google" our robots.txt, Googlebot has no problems fetching it. So i guess the "Never" information is due to a GWMT bug?
I also tested our robots.txt against your recommended service http://www.frobee.com/robots-txt-check. It says all robots has access to the sample URL above, but I gather the tool is not wildcard-savvy.
I will not disclose our domain in this context, please tell me if it is ok to send you a PW.
About the noindex stuff. Basically, the nocrawl param is added to internal links pointing to internal search result pages filtered by more than two params. Although we allow crawling of less complicated internal serps, we disallow indexing of most of them by "meta noindex".
-
Thanks.
100% agree with the Meta Noindex suggestion.
-
It can be tricky blocking parameters with robots.txt. The first thing you want to do is make sure your are actually blocking the URLs. There are a few good robots.txt checkers out there that can help:
You're file is probably going to look something like:
User-agent: *
Disallow: /*?nocrawl=1... but this could vary depending on exactly you don't want crawled
+1 to Igal's suggestion of handling these via parameter settings in Google Webmaster Tools: http://support.google.com/webmasters/bin/answer.py?hl=en&answer=1235687
Finally, if your goal is to keep search results out of the index (it probably should be) then you should also highly consider using a meta robots NOINDEX tag on all search results pages. You can also slap a nofollow on links pointing to search results as this might also help Google steer clear of those pages.
Best of luck!
Edit: Here's what John Wu of Google Webmaster has to say...
"We show this warning when we find a high number of URLs on a site -- even before we attempt to crawl them. If you are blocking them with a robots.txt file, that's generally fine. If you really do have a high number of URLs on your site, you can generally ignore this message. If your site is otherwise small and we find a high number of URLs, then this kind of message can help you to fix any issues (or disallow access) before we start to access your server to check gazillions of URLs :-)."
-
Didn't say it wasn't.
I`m just not sure how these rules apply to parameters, since they are not a part of the "core" URL.
(For example: What happens if I take a URL from your site, change a nocrawl=1 to nocrawl=0 and link to it from mine?
Do you have any URL sanitation rules in place to overcome that or will the page be indexed by Googlebot when it crawls my site and moves on to yours?)Personally, when dealing with parameters, I find it easier to work with WMT so I was offering an easier workaround, (at least for me)
To tell you the truth, I would use hard-coded on page meta noindex/nofollow here (again, as parameters can be so easily manipulated).
-
Igal, thank your for replying.
But robots.txt disallowing URLs by matching patterns has been supported by Googlebot for a long time now.
-
Hi
I`m not sure if this is the best way to go about it.
Robots.txt is commonly used for folder level disallow rules, I`m not sure how it will respond to parameters.
Having said that, there are several things you can do here:
1. You can use WMT to zero in on this parameter and prevent it from being searched.
To do so choose Configuration>>URL Parameters, answer "Yes" to the question about content change and
check-in the 3rd bullet (Only URL with value...) Of course you'll need to choose "1" as the right value.2. If this still didn't solve your issue, you might want to try using htacess + regex to prevent access by user agent.
You can find user-agent information here Googlebot user agent listAlso, you may want to check my blog post about some of the less known Googlebot Facts (shameless self-promotion)
Best
Igal
-
I'll send you a PW, Des.
-
What the domain.?
Got a burning SEO question?
Subscribe to Moz Pro to gain full access to Q&A, answer questions, and ask your own.
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
-
Should I add my html sitemap to Robots?
I have already added the .xml to Robots. But should I also add the html version?
Technical SEO | | Trazo0 -
Good robots txt for magento
Dear Communtiy, I am trying to improve the SEO ratings for my website www.rijwielcashencarry.nl (magento). My next step will be implementing robots txt to exclude some crawling pages.
Technical SEO | | rijwielcashencarry040
Does anybody have a good magento robots txt for me? And what need i copy exactly? Thanks everybody! Greetings, Bob0 -
Some URLs were not accessible to Googlebot due to an HTTP status error.
Hello I'm a seo newbie and some help from the community here would be greatly appreciated. I have submitted the sitemap of my website in google webmasters tools and now I got this warning: "When we tested a sample of the URLs from your Sitemap, we found that some URLs were not accessible to Googlebot due to an HTTP status error. All accessible URLs will still be submitted." How do I fix this? What should I do? Many thanks in advance.
Technical SEO | | GoldenRanking140 -
Adding multi-language sitemaps to robots.txt
I am working on a revamped multi-language site that has moved to Magento. Each language runs off the core coding so there are no sub-directories per language. The developer has created sitemaps which have been uploaded to their respective GWT accounts. They have placed the sitemaps in new directories such as: /sitemap/uk/sitemap.xml /sitemap/de/sitemap.xml I want to add the sitemaps to the robots.txt but can't figure out how to do it. Also should they have placed the sitemaps in a single location with the file identifying each language: /sitemap/uk-sitemap.xml /sitemap/de-sitemap.xml What is the cleanest way of handling these sitemaps and can/should I get them on robots.txt?
Technical SEO | | MickEdwards0 -
Can Googlebot read the content on our homepage?
Just for fun I ran our homepage through this tool: http://www.webmaster-toolkit.com/search-engine-simulator.shtml This spider seems to detect little to no content on our homepage. Interior pages seem to be just fine. I think this tool is pretty old. Does anyone here have a take on whether or not it is reliable? Should I just ignore the fact that it can't seem to spider our home page? Thanks!
Technical SEO | | danatanseo0 -
Have I constructed my robots.txt file correctly for sitemap autodiscovery?
Hi, Here is my sitemap: User-agent: * Sitemap: http://www.bedsite.co.uk/sitemaps/sitemap.xml Directories Disallow: /sendfriend/
Technical SEO | | Bedsite
Disallow: /catalog/product_compare/
Disallow: /media/catalog/product/cache/
Disallow: /checkout/
Disallow: /categories/
Disallow: /blog/index.php/
Disallow: /catalogsearch/result/index/
Disallow: /links.html I'm using Magento and want to make sure I have constructed my robots.txt file correctly with the sitemap autodiscovery? thanks,0 -
I am trying to block robots from indexing parts of my site..
I have a few websites that I mocked up for clients to check out my work and get a feel for the style I produce but I don't want them indexed as they have lore ipsum place holder text and not really optimized... I am in the process of optimizing them but for the time being I would like to block them. Most of my warnings and errors on my seomoz dashboard are from these sites and I was going to upload the folioing to the robot.txt file but I want to make sure this is correct: User-agent: * Disallow: /salondemo/ Disallow: /salondemo3/ Disallow: /cafedemo/ Disallow: /portfolio1/ Disallow: /portfolio2/ Disallow: /portfolio3/ Disallow: /salondemo2/ is this all i need to do? Thanks Donny
Technical SEO | | Smurkcreative0 -
If googlebot fetch doesnt find our site will it be indexed?
We have a problem with one of our sites (wordpress) not getting fetched by googlebot. Some folders on the url get found others not. So we have isolated it as a wordpress issue. Will this affect our page in google serps anytime soon? Does any whizz kid out there know how to begin fixing this as we have spent two days solid on this. url is www.holden-jones.co.uk Thanks in advance guys Rob
Technical SEO | | wonderwall0