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.
OK to block /js/ folder using robots.txt?
-
I know Matt Cutts suggestions we allow bots to crawl css and javascript folders (http://www.youtube.com/watch?v=PNEipHjsEPU)
But what if you have lots and lots of JS and you dont want to waste precious crawl resources?
Also, as we update and improve the javascript on our site, we iterate the version number ?v=1.1... 1.2... 1.3... etc.
And the legacy versions show up in Google Webmaster Tools as 404s. For example:
http://www.discoverafrica.com/js/global_functions.js?v=1.1
http://www.discoverafrica.com/js/jquery.cookie.js?v=1.1
http://www.discoverafrica.com/js/global.js?v=1.2
http://www.discoverafrica.com/js/jquery.validate.min.js?v=1.1
http://www.discoverafrica.com/js/json2.js?v=1.1Wouldn't it just be easier to prevent Googlebot from crawling the js folder altogether?
Isn't that what robots.txt was made for?
Just to be clear - we are NOT doing any sneaky redirects or other dodgy javascript hacks.
We're just trying to power our content and UX elegantly with javascript.
What do you guys say:
Obey Matt? Or run the javascript gauntlet?
-
Hey!
So, I listened to Matt's video. I see his point about wanting to crawl the JS files just in case something tricky is going on. Do understand that this is a risk you take. I don't see an issue blocking crawling of those files from a logical perspective, but if you or someone that takes over for you in the future does do something sneaky with JS and you are caught ... plus you have blacked access to the offending files ... it is going to take a lot more work to get back in good graces with them.
It's like a cop searching your car. You have every right to ban them from doing so, but if you have nothing to hide, why make trouble? Matt is right, banning crawling of these files is not going to save you much but if you think it's an issue, feel free. Just know that they might take it as a possible flag in the future.
Kate
-
Harald, it looks like the response you've quoted is from http://groups.google.com/a/googleproductforums.com/forum/#!category-topic/webmasters/crawling-indexing--ranking/9MGYEoROdkg, which is a question about a menu that has javascript. I think this poster has a slightly different question. I'll ask another associate to come on in and take a look.
-
Hi Discover,I think that whenever we access the web pages , we have seen number of times that there is run time error & they asking for debug. This error message is helpful for the developers only but not for the users.
I think that you should please refer to the following link:
The truth about non javascript
I hope that above content help to solve your query.
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
-
Good to use disallow or noindex for these?
Hello everyone, I am reaching out to seek your expert advice on a few technical SEO aspects related to my website. I highly value your expertise in this field and would greatly appreciate your insights.
Technical SEO | | williamhuynh
Below are the specific areas I would like to discuss: a. Double and Triple filter pages: I have identified certain URLs on my website that have a canonical tag pointing to the main /quick-ship page. These URLs are as follows: https://www.interiorsecrets.com.au/collections/lounge-chairs/quick-ship+black
https://www.interiorsecrets.com.au/collections/lounge-chairs/quick-ship+black+fabric Considering the need to optimize my crawl budget, I would like to seek your advice on whether it would be advisable to disallow or noindex these pages. My understanding is that by disallowing or noindexing these URLs, search engines can avoid wasting resources on crawling and indexing duplicate or filtered content. I would greatly appreciate your guidance on this matter. b. Page URLs with parameters: I have noticed that some of my page URLs include parameters such as ?variant and ?limit. Although these URLs already have canonical tags in place, I would like to understand whether it is still recommended to disallow or noindex them to further conserve crawl budget. My understanding is that by doing so, search engines can prevent the unnecessary expenditure of resources on indexing redundant variations of the same content. I would be grateful for your expert opinion on this matter. Additionally, I would be delighted if you could provide any suggestions regarding internal linking strategies tailored to my website's structure and content. Any insights or recommendations you can offer would be highly valuable to me. Thank you in advance for your time and expertise in addressing these concerns. I genuinely appreciate your assistance. If you require any further information or clarification, please let me know. I look forward to hearing from you. Cheers!0 -
URL Structure On Site - Currently it's domain/product-name NOT domain/category/product name is this bad?
I have a eCommerce site and the site structure is domain/product-name rather than domain/product-category/product-name Do you think this will have a negative impact SEO Wise? I have seen that some of my individual product pages do get better rankings than my categories.
Technical SEO | | the-gate-films0 -
Guys & Gals anyone know if urllist.txt is still used?
I'm using a tool which generates urllist.txt and looking on the SEO Forums it seems that Yahoo used to use this. What I'd like to know is is it still used anywhere and should we have it on the site?
Technical SEO | | danwebman0 -
Will blocking the Wayback Machine (archive.org) have any impact on Google crawl and indexing/SEO?
Will blocking the Wayback Machine (archive.org) by adding the code they give have any impact on Google crawl and indexing/SEO? Anyone know? Thanks! ~Brett
Technical SEO | | BBuck0 -
Is there any value in having a blank robots.txt file?
I've read an audit where the writer recommended creating and uploading a blank robots.txt file, there was no current file in place. Is there any merit in having a blank robots.txt file? What is the minimum you would include in a basic robots.txt file?
Technical SEO | | NicDale0 -
Oh no googlebot can not access my robots.txt file
I just receive a n error message from google webmaster Wonder it was something to do with Yoast plugin. Could somebody help me with troubleshooting this? Here's original message Over the last 24 hours, Googlebot encountered 189 errors while attempting to access your robots.txt. To ensure that we didn't crawl any pages listed in that file, we postponed our crawl. Your site's overall robots.txt error rate is 100.0%. Recommended action If the site error rate is 100%: Using a web browser, attempt to access http://www.soobumimphotography.com//robots.txt. If you are able to access it from your browser, then your site may be configured to deny access to googlebot. Check the configuration of your firewall and site to ensure that you are not denying access to googlebot. If your robots.txt is a static page, verify that your web service has proper permissions to access the file. If your robots.txt is dynamically generated, verify that the scripts that generate the robots.txt are properly configured and have permission to run. Check the logs for your website to see if your scripts are failing, and if so attempt to diagnose the cause of the failure. If the site error rate is less than 100%: Using Webmaster Tools, find a day with a high error rate and examine the logs for your web server for that day. Look for errors accessing robots.txt in the logs for that day and fix the causes of those errors. The most likely explanation is that your site is overloaded. Contact your hosting provider and discuss reconfiguring your web server or adding more resources to your website. After you think you've fixed the problem, use Fetch as Google to fetch http://www.soobumimphotography.com//robots.txt to verify that Googlebot can properly access your site.
Technical SEO | | BistosAmerica0 -
What is the best method to block a sub-domain, e.g. staging.domain.com/ from getting indexed?
Now that Google considers subdomains as part of the TLD I'm a little leery of testing robots.txt with something like: staging.domain.com
Technical SEO | | fthead9
User-agent: *
Disallow: / in fear it might get the www.domain.com blocked as well. Has anyone had any success using robots.txt to block sub-domains? I know I could add a meta robots tag to the staging.domain.com pages but that would require a lot more work.0 -
Robots.txt file getting a 500 error - is this a problem?
Hello all! While doing some routine health checks on a few of our client sites, I spotted that a new client of ours - who's website was not designed built by us - is returning a 500 internal server error when I try to look at the robots.txt file. As we don't host / maintain their site, I would have to go through their head office to get this changed, which isn't a problem but I just wanted to check whether this error will actually be having a negative effect on their site / whether there's a benefit to getting this changed? Thanks in advance!
Technical SEO | | themegroup0
