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.
How much does dirty html/css etc impact SEO?
-
Good Morning!
I have been trying to clean up this website and half the time I can't even edit our content without breaking the WYSIWYG Editor. Which leads me to the next question. How much, if at all, is this impacting our SEO. To my knowledge this isn't directly causing any broken pages for the viewer, but still, it certainly concerns me.
I found this post on Moz from last year:
http://moz.rainyclouds.online/community/q/how-much-impact-does-bad-html-coding-really-have-on-seo
We have a slightly different set of code problems but still wanted to revisit this question and see if anything has changed.
I also can't imagine that all this broken/extra code is helping our page load properly.
Thanks everybody!
-
Invalid code does not equate to slow code. Google used to purposely not close html and body tags to save bandwidth and loading time. I took the question as meaning w3c valid code.
-
Bad code can definately affect seo rankings for a website.
The question really depends on what exactly is wrong with the code. If its causing problems with page load speed times, that could be a problem for sure. HTML code and css code errors if written poorly or outdated does not really matter for actual seo and rankings on thier own. Unless these erros are causing other issues such as user experience which would increase bounce rates and affect rankings. If the code errors are causing duplicate pages., Html errors like missing H1, tags and such can affect on page seo scores which affect rankings. So in my honest opinion bad code can definately affect seo rankings for a website.
Free page speed test with results breakdown can be had there => http://www.webpagetest.org
Definately clean up all the HTML seo factors, usuability issues and page speed issues. Hope that helps, Have a great day, Joe
-
I love him...
-
As long as links are not broken and resources are not returning 404 errors, my understanding is that it is not affected at all. The only thing I would make sure of is that fetch as google returns the page looking like it should. Here is a video from the authority on the matter.
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
-
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
Intermediate & Advanced SEO | | Ty19861 -
Default Wordpress 301 Redirects of JS and CSS files. Bad for SEO & How to Fix?
Hi there: We are developers with some digital marketing expertise, but a current issue has us perplexed. An outside SEO firm has asked us to clean up a large number of 301 redirects. Most of these are 'default' Wordpress behavior that relate to calling the latest version of a JS or CSS file. For instance, a JS file is called with this: https://websitexyz.com/wp-includes/js/wp-embed.min.js?ver=4.9.1 but ultimately redirects to this: https://websitexyz.com/wp-includes/js/wp-embed.min.js. We are being asked to prevent the redirect from happening by, presumably, calling the ultimate file to begin with. The issue is that, as far as we know, there's no easy way to alter WP behavior to call the ultimate file to begin with. Does anyone have any thoughts on this? Thanks.
Intermediate & Advanced SEO | | Daaveey0 -
Intro to programming/coding for seo
Hello, I am currently a SEO and am looking for an Intro to programming/coding course to help me implement various technical SEO tasks for my clients and the business-as the programming dept will not help me, as they do not see the value of SEO. Could someone pls recommend an online course that would introduce me to basic concepts and also specifically, the information that would help me to enhance our SEO? I would also like to better understand APIs. Thanks so much in advance for your help! Lauren
Intermediate & Advanced SEO | | lfrazer1 -
Domain name suffix impact on SEO
Hello there, We are about to launch a new website and were wondering what impact a specific suffix would have from an SEO point of view. We were thinking about going for a domain which ends in .london as oppose to .com We are based in London and sell world wide via our website. We are suggesting www.domain.london as oppose to www.domain.com I would appreciate your views... Thanks
Intermediate & Advanced SEO | | roberthseo0 -
Would you rate-control Googlebot? How much crawling is too much crawling?
One of our sites is very large - over 500M pages. Google has indexed 1/8th of the site - and they tend to crawl between 800k and 1M pages per day. A few times a year, Google will significantly increase their crawl rate - overnight hitting 2M pages per day or more. This creates big problems for us, because at 1M pages per day Google is consuming 70% of our API capacity, and the API overall is at 90% capacity. At 2M pages per day, 20% of our page requests are 500 errors. I've lobbied for an investment / overhaul of the API configuration to allow for more Google bandwidth without compromising user experience. My tech team counters that it's a wasted investment - as Google will crawl to our capacity whatever that capacity is. Questions to Enterprise SEOs: *Is there any validity to the tech team's claim? I thought Google's crawl rate was based on a combination of PageRank and the frequency of page updates. This indicates there is some upper limit - which we perhaps haven't reached - but which would stabilize once reached. *We've asked Google to rate-limit our crawl rate in the past. Is that harmful? I've always looked at a robust crawl rate as a good problem to have. Is 1.5M Googlebot API calls a day desirable, or something any reasonable Enterprise SEO would seek to throttle back? *What about setting a longer refresh rate in the sitemaps? Would that reduce the daily crawl demand? We could set increase it to a month, but at 500M pages Google could still have a ball at the 2M pages/day rate. Thanks
Intermediate & Advanced SEO | | lzhao0 -
404's - Do they impact search ranking/how do we get rid of them?
Hi, We recently ran the Moz website crawl report and saw a number of 404 pages from our site come back. These were returned as "high priority" issues to fix. My question is, how do 404's impact search ranking? From what Google support tells me, 404's are "normal" and not a big deal to fix, but if they are "high priority" shouldn't we be doing something to remove them? Also, if I do want to remove the pages, how would I go about doing so? Is it enough to go into Webmaster tools and list it as a link no to crawl anymore or do we need to do work from the website development side as well? Here are a couple of examples that came back..these are articles that were previously posted but we decided to close out: http://loyalty360.org/loyalty-management/september-2011/let-me-guessyour-loyalty-program-isnt-working http://loyalty360.org/resources/article/mark-johnson-speaks-at-motivation-show Thanks!
Intermediate & Advanced SEO | | carlystemmer0 -
SEO impact difference between a URL Rewrite and 301 redirect
Hi guys and girls! Just putting a new site live, we changed the URL from one thing to another and I created a 301 file redirecting the urls like for like. The developer installing it has created a different file with columns like: RewriteRule ^page/ http://www.site/page [R=301,L] RewriteRule ^/page/ http://www.site/page [R=301,L] What's the difference? The page redirects but is there a difference between the 301 redirect and this URL rewrite in terms of SEO and link value?
Intermediate & Advanced SEO | | shloy23-2945840 -
Duplicate page titles Wordpress SEO/Yoast
Hi I have a Wordpress site using the Wordpress SEO plugin by Yoast. Everything appears to be fine except that on 1 Feb SEOMoz crawl suddenly picked up a bunch of errors. The errors are duplicate page titles, and these exist only for the mysite.com/page/X pages. I can't find any setting in Yoast that looks wrong or tells me how to fix this. The pages are also dynamically canonicalizing to themselves - not sure if this makes any difference although I don't know how this is happening. Does anyone know how to fix this duplicate title error? Alex
Intermediate & Advanced SEO | | alextanner0