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
-
Google Search console says 'sitemap is blocked by robots?
Google Search console is telling me "Sitemap contains URLs which are blocked by robots.txt." I don't understand why my sitemap is being blocked? My robots.txt look like this: User-Agent: *
Technical SEO | | Extima-Christian
Disallow: Sitemap: http://www.website.com/sitemap_index.xml It's a WordPress site, with Yoast SEO installed. Is anyone else having this issue with Google Search console? Does anyone know how I can fix this issue?1 -
Is sitemap required on my robots.txt?
Hi, I know that linking your sitemap from your robots.txt file is a good practice. Ok, but... may I just send my sitemap to search console and forget about adding ti to my robots.txt? That's my situation: 1 multilang platform which means... ... 2 set of pages. One for each lang, of course But my CMS (magento) only allows me to have 1 robots.txt file So, again: may I have a robots.txt file woth no sitemap AND not suffering any potential SEO loss? Thanks in advance, Juan Vicente Mañanas Abad
Technical SEO | | Webicultors0 -
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 -
Does Bing ignore robots txt files?
Bonjour from "Its a miracle is not raining" Wetherby Uk 🙂 Ok here goes... Why despite a robots text file excluding indexing to site http://lewispr.netconstruct-preview.co.uk/ is the site url being indexed in Bing bit not Google? Does bing ignore robots text files or is there something missing from http://lewispr.netconstruct-preview.co.uk/robots.txt I need to add to stop bing indexing a preview site as illustrated below. http://i216.photobucket.com/albums/cc53/zymurgy_bucket/preview-bing-indexed.jpg Any insights welcome 🙂
Technical SEO | | Nightwing0 -
Using Sitemap Generator - Good/Bad?
Hi all I recently purchased the full licence of XML Sitemap Generator (http://www.xml-sitemaps.com/standalone-google-sitemap-generator.html) but have yet used it. The idea behind this is that I can deploy the package on each large e-commerce website I build and the sitemap will be generated as often as I set it be and the search engines will also be pinged automatically to inform them of the update. No more manual XML sitemap creation for me! Now it sounds great but I do not know enough about pinging search engines with XML sitemap updates on a regular basis and if this is a good or bad thing? Can it have any detrimental effect when the sitemap is changing (potentially) every day with new URLs for products being added to the site? Any thoughts or optinions would be greatly appreciated. Kris
Technical SEO | | yousayjump0 -
Use of + in url good or bad?
Hi, I am working on a SEO project for a client.
Technical SEO | | MaartenvandenBos
Some of the urls have a + between the keyword.
like www.example.com/make+me+happy/ Is this good or bad for seo?
Or is it maybe better to use - ? Thanks!0 -
Is using a Href in Div OK?
Hi, I was just wondering what your thoughts are on using a Href in a Div, which contains anchor text. We currently use the Href on the div, as opposed to just the anchor text as I want the whole div to be clickable as opposed to just the anchor text. So currently I have: Keword 1
Technical SEO | | James77
Keyword 2 Is this perfectly fine to do it like this as opposed to using <a tags="" ???<br="">I suppose there are various alternatives - if you must use the</a><a tag="" like:<="" p=""></a> <a tag="" like:<="" p=""></a> Keword 1
Keyword 2 However I would assume a search engine is smart enought to know its the same thing??? Thanks0 -
Crawling image folders / crawl allowance
We recently removed /img and /imgp from our robots.txt file thus allowing googlebot to crawl our image folders. Not sure why we had these blocked in the first place, but we opened them up in response to an email from Google Product Search about not being able to crawl images - which can/has hurt our traffic from Google Shopping. My question is: will allowing Google to crawl our image files eat up our 'crawl allowance'? We wouldn't want Google to not crawl/index certain pages, and ding our organic traffic, because more of our allotted crawl bandwidth is getting chewed up crawling image files. Outside of the non-detailed crawl stat graphs from Webmaster Tools, what's the best way to check how frequently/ deeply our site is getting crawled? Thanks all!
Technical SEO | | evoNick0
