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.
Will Google Count Links Loaded from JavaScript Files After the Page Loads
-
Hi,
I have a simple question. If I want to put an image with a link to another site like a banner ad on my page, but do not want it counted by Google. Can I simply load the link and banner using jQuery onload from a separate .js file?
The ideal result would be for Google to index a script tag instead of a link.
-
Good Answer. I completely abandoned the banner I was thinking of using. It was from one of those directories that will list your site for free if you show their banner on your site. Their code of course had a link to them with some optimized text. I was looking for a way to display the banner without becoming a link farm for them.
Then I just decided that I did not want that kind of thing on my site even if it is in a javascript onload event if Google is going to crawl it anyway, so I just decided not to add it.
Then I started thinking about user generated links. How could I let people cite a source in a way that the user can click on without exposing my site to hosting spammy links. I originally used an ASP.Net linkbutton with a confirm button extender from the AJAX Control ToolKit that would display the url and ask the user if they wanted to go there. Then they would click the confirm button and be redirected. The problem was that the URL of the page was in the head part of the DOM.
I replaced that with a feature using a modal popup that calls a javascript function when the link button is clicked. That function then makes an ajax call to a webservice that gets the link from the database. Then the javascript writes an iframe to a div in the modal's panel. The result should be the user being able to see the source without leaving the site, but a lot of sites appear to be blocking the frame by using stuff like X-Frame-Options, so I'm probably going to use a different solution that uses the modal without the iframe. I am thinking of maybe using something like curl to grab content from the page to write to the modal panel along with a clickable link. All of this of course after the user clicks the linkbutton so none of that will be in the source code when the page loads.
-
I think what we really need to understand is, what is the purpose of hiding the link from Google? If it's to prevent the discovery of a URL or prevent the indexation of a certain page (or set of pages) - it's easier to achieve the same thing by using Meta no-index directives or wildcard-based robots.txt rules
or by simply denying Gooblebot's user-agent, access to certain pages entirely
Is is that important to hide the link, or is it that you want to prevent access to certain URLs from within Google's SERPs? Another option is obviously to block users / sessions referred from Google (specifically) from accessing the pages. There's lots can be done, but a bit of context would be cool
By the way, no-follow does not prevent Google from following links. It actually just stops PageRank from passing across. I know, it was named wrong
-
What about a form action? Where instead of an a element with a href attribute you add a form element with an action attribute to what the href would be in a link.
-
Thanks for that answer. You obviously know a lot about this issue. I guess they would be able to tell if the .js script file creates an a element with a specific href attribute and then add that element to a specific div tag after the page loads.
It sounds like it might be easier just to nofollow those links instead of going to all the trouble to redirect the .js file whenever Google Bot crawls the page. I fear that could be considered cloaking.
Another possibility would be a an alert that requires a user interaction before grabbing a url from a database. The user would click on the link without an href, the javascript onclick fires, the javascript grabs the the url from a database, the user is asked to click a button if they want to proceed, and then the user is redirected to the external url. That should keep the external URL out of the script code.
-
Google can crawl JavaScript and its contents, but most of the time they are unlikely to do so. In order to do this, Google has to do more than just a basic source code scrape. Like everyone else seeking to scrape data from inside of generated elements, Google has to actually check the modified source-code, after all of the scripts have run (the render) rather than the base (non-modified) source code before any scripts fire
Google's mission is to index the web. There's no doubt that, non-rendered crawls (which do not contain the generated HTML output of scripts) can be done in a fraction of the time it takes to get a rendered snapshot of the page-code. On average I have found rendered crawling to take 7x to 10x longer than basic source scraping
What we have found is that Google are indeed, capable of crawling generated text and links and stuff... but they won't do this all the time, or for everyone. Those resources are more precious to Google and they crawl more sparingly in that manner
If you deployed the link in the manner which you have described, my anticipation is that Google would not notice or evaluate the link for a month or two (if you're not super popular). Eventually, they would determine the presence of the link - at which point it would be factored and / or evaluated
I suppose you could embed the script as a link to a '.js' module, and then use Robots.txt to ban Google from crawling that particular JavaScript file. If they chose to obey that directive, the link would pretty much remain hidden from them. But remember, it's only a directive!
If you wanted to be super harsh you could block Googlebot (user agent) from that JS file and do something like, 301 them to the homepage when they tried to access it (instead of allowing them to open and read the JS file). That would be pretty hardcore but would stand a higher chance of actually working
Think about this kind of stuff though. It would be pretty irregular to go to such extremes and I'm not certain what the consequences of such action(s) would be
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
-
Will shortening down the amount of text on my pages affect it's SEO performance?
My website has several pages with a lot of text that becomes pretty boring. I'm looking at shortening down the amount of copy on each page but then within the updated, shortened copy, integrating more target keywords naturally. Will shortening down the current copy have a negative effect on my SEO performance?
On-Page Optimization | | Liquid20150 -
Google Console returning 0 pages as being indexed
HI there, I submitted my site notebuster.net to Search Console over a month ago and it is showing 0 pages as being indexed under the index status report. I know this isn't right as I can see that in google alone by typing in (site:notebusters.net) there are 113 pages indexed. Any idea why this might be? Thanks
On-Page Optimization | | CosiCrawley0 -
Google Webmaster Guideline Change: Human-Readable list of links
In the revised webmaster guidelines, google says "[...] Provide a sitemap file with links that point to the important pages on your site. Also provide a page with a human-readable list of links to these pages (sometimes called a site index or site map page)." (Source: https://support.google.com/webmasters/answer/35769?hl=en) I guess what they mean by this is something like this: http://www.ziolko.de/sitemap.html Still, I wonder why they say that. Just to ensure that every page on a site is linked and consequently findable by humans (and crawlers - but isn't the XML sitemap for those and gives even better information)? Should not a good navigation already lead to every page? What is the benefit of a link-list-page, assuming you have an XML sitemap? For a big site, a link-list is bound to look somewhat cluttered and its usefulness is outclassed by a good navigation, which I assume as a given. Or isn't it? TL;DR: Can anybody tell me what exactly is the benefit of a human-readable list of all links? Regards, Nico
On-Page Optimization | | netzkern_AG0 -
SVG image files causing multiple title tags on page - SEO issue?
Does anyone have any experience with SVG image files and on-page SEO? A client is using them and it seems they use the title tag in the same way a regular image (JPG/PNG) would use an image ALT tag. I'm concerned that search engines will see the multiple title tags on the page and that this will cause SEO issues. Regular crawlers like Moz flag it as a second title tag, however it's outside the header and in a SVG wrap so the crawlers really should understand that this is a SVG title rather than a second page title. But is this the case? If anyone has experience with this, I'd love to hear about it.
On-Page Optimization | | mrdavidingram2 -
Home page and category page target same keyword
Hi there, Several of our websites have a common problem - our main target keyword for the homepage is also the name of a product category we have within the website. There are seemingly two solutions to this problem, both of which not ideal: Do not target the keyword with the homepage. However, the homepage has the most authority and is our best shot at getting ranked for the main keyword. Reword and "de-optimise" the category page, so it doesn't target the keyword. This doesn't work well from UX point of view as the category needs to describe what it is and enable visitors to navigate to it. Anybody else gone through a similar conundrum? How did you end up going about it? Thanks Julian
On-Page Optimization | | tprg0 -
Noindex child pages (whose content is included on parent pages)?
I'm sorry if there have been questions close to this before... I've using WordPress less like a blogging platform and more like a CMS for years now... For content management purposes we organize a lot of content around Parent/Child page (and custom-post-type) relationships; the Child pages are included as tabbed content on the Parent page. Should I be noindexing these child pages, since their content is already on the site, in full, on their Parent pages (ie. duplicate content)? Or does it not matter, since the crawlers may not go to all of the tabbed content? None of the pages have shown up in Moz's "High Priority Issues" as duplicate content but it still seems like I'm making the Parent pages suffer needlessly... Anything obvious I'm not taking into consideration? By the by, this is my first post here @ Moz, which I'm loving; this site and the forums are such a great resource! Anyways, thanks in advance!
On-Page Optimization | | rsigg0 -
How to properly remove pages and a category from Google's index
I want to remove this category http://www.webdesign.org/web-design-news-all/ and all the pages in that category (e.g. http://www.webdesign.org/web-design-news-all/7386.html ) from Google's index. I used the following string in the "Reomval URS" section in Google Webmaster Tools: http://www.webdesign.org/web-design-news-all/* is that correct or I better use http://www.webdesign.org/web-design-news-all/ ? Thanks in advance.
On-Page Optimization | | VinceWicks0 -
Footer link to home page?
Quick question - is it a best practice to add a footer link on each page of a website that points back to your home page, with the anchor text being your official brand name?
On-Page Optimization | | Bandicoot0