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.
The main navigation is using JS, will this have a negative impact on SEO?
-
Hi mozzers,
We just redesigned our homepage and discovered that our main nav is using JS and when disabling JS, no main nav links was showing up. Is this still considered bad practice for SEO? https://cl.ly/14ccf2509478
thanks
-
Thanks Jose!
-
Googlebot does not render JavaScript
We hear very often about JavaScript rendering is the assumption that the crawler is responsible for the rendering. But that's not the case. The rendering is done by the indexer (from Google Caffeine).More specifically, the Web Rendering Service (WRS), which is part of Google Caffeine. And this is exactly where the second great difficulty lies in the area of JavaScript SEO.
Gary Illyes says: "Also, to clarify, WRS is a subsystem of Caffeine, just like the PageRanker (cos yes, we still use it) or the canonicalization algorithm."
The process flow between the crawler and the indexer:
HTML files are downloaded.
CSS and JavaScript data will be downloaded in parallel.
WRS (Web Rendering Service) (part of Google Caffeine) is used to run JS.
WRS renders all files.
Now Google Caffeine can index the content if necessary.
And that's when Googlebot can crawl new links.
Why is that a problem? For the crawler to be able to enter the content and follow the links, it must first pass the data to the indexer. The indexer renders the content and returns it to the crawlers. Only now can the crawler see the content and follow the links. On the next page, the game starts again. Page by page. (many processes)Unlike conventional pages, where the crawler crawls numerous pages and, after crawling, passes everything collectively to the indexer. (few processes)
This process presents another challenge to search engines.
Regards
-
The only bad SEO Practice regarding JS that I've of is trying to hide the JS files from Search Engines, apparently, Google needs to render a whole page as it indexing it; so blocking any JS (& CSS for that matter) isn't a good thing.
-
Hi There,
JS rendered UI isn't negative, it is however not a good practice also.
You can find complete information to the concept of JS rendered pages and UI on this link, https://www.portent.com/blog/seo/javascript-bad-for-seo.htm .
I hope this helps.
Regards,
Vijay
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
-
Redirection of 100 domain to Main domain affects SEO?
Hi guys, An email software vendor managed by a different area of my company redirected 100 domains used for unsolicited email campaigns to my main domain. These domains are very likely to get blacklisted at some point. My SEO tool now is showing me all those domains as "linking" to my main site as do-follow links. The vendor states that this will not affect my main domain/website in any way. I'm highly concerned. I would appreciate your professional opinion about this. Thanks!!
Intermediate & Advanced SEO | | anagentile0 -
Is using a subheading to introduce a section before the main heading bad for SEO?
I have noticed a popular trend in web design which involves sections of content being started with what looks to be smaller sub heading something like <h3>, <h4> or <h5> and then followed by a bigger heading <h2>. My question is, what is the best way to deal with this visual structure and will having a structure like this hurt your SEO? <h5>Contact Us</h5> <h2>Get started with your next project in minutes!<h2> <p>Some text here ...</p> Here are some examples where the header structure is similar to above (smaller before bigger): https://www.snappr.com/ https://form.taxi/ https://fluz.app/ If that structure is bad for SEO, then it seems like a simple solution is to make it purely visual, mimicking a sub header with styling on a span or paragraph like these sites do: https://www.andrejilderda.nl/ https://nightwatch.io/ https://www.swingvy.com/ https://www.figma.com/ My only concern with that approach is because your section sub heading is no longer an actual header you will miss out on ranking important and relevant keyword information for that section. Is this correct something to be worried about? There is one last solution I stumbled upon that involves using headings for both but in reverse hierarchy so a <h3> is first but styled to be smaller, followed by a visually bigger <h4> which provides the addition context. https://avocode.com/ Anyone have thoughts, expertise or resources on the matter?
Intermediate & Advanced SEO | | si.analytics0 -
Having 2 brands with the same content - will this work from an SEO perspective
Hi All, I would love if someone could help and provide some insights on this. We're a financial institution and have a set of products that we offer. We have recently joined with another brand and will now be offering all our products to their customers. What we are looking to do is have 1 site that masks the content for both sites so it appears as there are 2 seperate brands with different content - in fact we have a main site and then a sister brand that offers the same products. Is there anyway to do this so when someone searches for Credit Card from Brand A it is indexed under Brand A and same when someone searched for Credit Card from Brand B it is indexed under Brand B. The one thing is we would not want to rel:can the pages nor be penalised by googles latest PR algorithm. Hope someone can help! Thanks Dave
Intermediate & Advanced SEO | | CFCU1 -
SEO impact of 301 redirects based on IP addresses from a specific state
Hello Moz Community! We are facing an issue that may or may not be unique, but need some advice and/or clarification on the best way to address the issue. We recently rebranded and launched a new site under a new domain and things have been progressing well. However, despite all the up front legwork on trademarks and licensing, we have recently encountered a hiccup that forces us to revert to the old URL/branding for one specific state. This may be a temporary issue that lasts a couple of months or it could potentially be in the court system for a couple of years. One potential solution we have discussed is to redirect the new site to the old site based on IP addresses for the state in question. Looking for any guidance on what type of impact this may have on SEO. Also open to any other suggestions or guidance on dealing with this situation. Thanks
Intermediate & Advanced SEO | | VeteransFirstMarketing0 -
Does Disavowing Links Negate Anchor Text, or Just Negates Link Juice
I'm not so sure that disavowing links also discounts the anchor texts from those links. Because nofollow links absolutely still pass anchor text values. And disavowing links is supposed to be akin to nofollowing the links. I wonder because there's a potential client I'm working on an RFP for and they have tons of spammy directory links all using keyword rich anchor texts and they lost 98% of their traffic in Pengiun 1.0 and haven't recovered. I want to know what I'm getting into. And if I just disavow those links, I'm thinking that it won't help the anchor text ratio issues. Can anyone confirm?
Intermediate & Advanced SEO | | MiguelSalcido0 -
Yoast seo title question
I was referred to this plugin and have found it to be the most irritating and poorly designed plugin in the world. I want to be able to set my titles without it changing my page headers as well. For instance - If I set my title to be "This is my article name | site name" it will make my H1 tag read the same. I do not want or desire this nonsense. Why would they think this is something wise? Why would I want my site name on every single H1 tag on my site? How can I fix this? I only want my title to be my title. I want my H1 tag to remain the post/page name that I define in wordpress.
Intermediate & Advanced SEO | | Atomicx0 -
SEO Advice for Angular JS
We are changing our homepage (and gradually the rest of the site) to Angular JS.
Intermediate & Advanced SEO | | theLotter
In order not to lose anything in terms of SEO we are implementing Hashbangs + escaped fragment snapshots. Are there any other SEO considerations you think we should have and/or additional elements that we could add to the page to improve it in terms of SEO?0 -
Is .ME domain is effective in SEO ?
I am always listening about TLD. com. org .net but what about the .me domain. Can this will be effective in SEO. Can i able to beat down my competitors, if i choose .me . I also have a .com or other TLD option but if i am making my name than .me is for me but i need your suggestion for the seo purpose. Is there really domain affective in term of SEO.
Intermediate & Advanced SEO | | pnb5670