How much impact does bad html coding really have on SEO?
-
My client has a site that we are trying to optimise. However the code is really pretty bad.
There are 205 errors showing when W3C validating. The >title>, , <keywords> tags are appearing twice. There is truly excessive javascript. And everything has been put in tables.</keywords>
How much do you think this is really impacting the opportunity to rank? There has been quite a bit of discussion recently along the lines of is on-page SEO impacting anymore.
I just want to be sure before I recommend a whole heap of code changes that could cost her a lot - especially if the impact/return could be miniscule.
Should it all be cleaned up?
Many thanks
-
Hi Chammy,
I inherited a site that reported 3,184 crawl errors in MOZ and a significant number of them (nearly 600) were duplicate titles and content. I have that down to under 1,000 total errors and only 86 critical errors. I have seen my ranking grow pretty substantially and in one week had 6 pages increase over 20 positions in rank. I can share the MOZ Rank Report if you would like to see it.
So yes, it does have an impact.
-
I'm sorry, I don't have any evidence from the user experience point of view,. although I would also be interested to see the results of any studies.
I will say that from a site management/maintenance point of view it makes sense to try and keep the code as clean as possible. I've been involved in project were a considerable chunk of the cost was incurred due to the amount of time and effort that was required to unravel the mess even before any new changes were made!
-
Thanks very much everyone - very helpful.
Good point re page speed - the pages are certainly slow to load so this could well be due to the huge amount of js and bad code.
And yes, think the duplicate tags should be sorted - this shouldn't be difficult.
Has anyone got any tangible results that they've seen as a result of cleaning up js and code?
-
If you've got things like duplicate title and meta-description's going on then I'd certainly take a look at fixing those. Being able to manage these two tags is vital to managing the way your pages will appear in the search results. (And your title tag is an important ranking factor).
Normally, if your page doesn't validate then it's not a major problem and search engines won't penalise you for it. If however, your page is so badly crafted that the html errors, and general page structure makes it difficult for the search engines (and humans) to read your page then you're going to suffer.
The key is to make sure that your site/page content is accessible. How accessible is your page to someone with disabilities, using a screen reader etc.
You've got to make sure that the search engines can understand what your page is about or your page won't be seen as a relevant page for any search terms...
How bad is it? How does google render the page in it's instant previews (you can check this is Google Webmaster tools)
-
I personally don't worry about bad code unless it slows down my page or can possibly make things confusing for search engines or readers.
If the title and meta are appearing twice this could be confusing for search engines, so I would change this. But, if you've got things like an unclosed
here and there I personally don't think that's going to be much of a factor.
-
Invalid code has a small effect on ranking. However, if the invalid code causes usability issues such as load time and or causes a high bounce rate then it can lower your rankings and of course cut back on conversions.
Some of it is a higher priority than others. I would say defo remove the meta keywords.
Combine JS pages. The tables while out of date is not a big issue.
If you have the time and resources then yes it should be cleaned up. If not then clean up major problems
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
-
Plugins and SEO
I'd like some expert guidance. I've searched for a theme that does what I want and finally found something I like, but I'm wondering what you all think I should do to increase it's searchability. The plugin has all the listings and styling. All I need to do is past the code into the wordpress site ad voila! I have a page. Using the widget lets me allow upvotes and provide map etc. But it means the content is inside the widget instead of on the page. What would you modify if you wanted to keep the theme & widget to get the best results. http://best-of-sacramento.com/dentists This is my staging site.
Technical SEO | | julie-getonthemap1 -
SEO impact classifieds website
Hi, I'm part of an organization running a classifieds platform in Spain. (Mercadonline.es) We are hit by Google penalties since a few weeks, possibly caused by numerous errors we are experiencing. Most frequent errors are 404's and duplicate content (titles tags etc) since the nature of our website is dynamic. Many ads change daily, are added or removed, causing Googlebots (and others) to flag us and not being able to see our more unique content. Until what part of our platform should we be indexed? Since we have +34,000 pages indexed (mostly due to internal filter pages) I would need a systematic solution for us to display relevant and unique content, with enough usage of keywords that can bring us back up - we are actually ranked <50 on google for most of our main keywords. It is costing us precious time and money since we can only aquire our visitors (adwords etc) and not being to attract any organically. I can go in more detail with someone who can give me a bit more direction. Your answer is much appreciated! Ivor
Technical SEO | | ivordg0 -
Yoast Local SEO
Hello has anyone had any any issues with the Yoast local plugin not accepting the license when the WP install is in subfolder. Or any license issues with the plugin?
Technical SEO | | edwardfrebow0 -
E-ccomerce SEO conundrum
I work on the marketing for an eccomerce website. And lately we have been having an issue with the "wrong" page ranking and the right page "being nearly unfindable." For example the product bit o honey - there is a brand page, category page and individual product pages. We want the category page to be the top level bit o honey "hub" page and have placed all of the products onto it. We've written a nice description about Bit O Honey on that page and spent time running social campaigns around that page to try and get social activity on page as well. There have even been a few back links from blogs or reviews onto that category page. It also has the highest page authority among all of the bit o honey pages. But for some odd reason it is always the absolute last result among the 3 options when i search? In fact the only time I can even find it is if I type in about 3 sentences worth of text from that page and it find exact match. I'm really pretty confused as to why the highest page authority page with the most content, activity and link profile, would have the worst ranking capability among the three nearly identical pages.
Technical SEO | | Jonathan_Murrell0 -
SEO Disasters - Links to Stories of Site Moves/Rebuilds Gone Bad?
Hello, everyone.. I am looking for some links to stories, articles, what have you describing medium to large complex sites that have moved, changed CMS, changed domains, etc, and ended up in a total SEO disaster. Really appreciate anything the community here has or can find! Thanks!
Technical SEO | | DuPont0 -
Duplicate Content on SEO Pages
I'm trying to create a bunch of content pages, and I want to know if the shortcut I took is going to penalize me for duplicate content. Some background: we are an airport ground transportation search engine(www.mozio.com), and we constructed several airport transportation pages with the providers in a particular area listed. However, the problem is, sometimes in a certain region multiple of the same providers serve the same places. For instance, NYAS serves both JFK and LGA, and obviously SuperShuttle serves ~200 airports. So this means for every airport's page, they have the super shuttle box. All the provider info is stored in a database with tags for the airports they serve, and then we dynamically create the page. A good example follows: http://www.mozio.com/lga_airport_transportation/ http://www.mozio.com/jfk_airport_transportation/ http://www.mozio.com/ewr_airport_transportation/ All 3 of those pages have a lot in common. Now, I'm not sure, but they started out working decently, but as I added more and more pages the efficacy of them went down on the whole. Is what I've done qualify as "duplicate content", and would I be better off getting rid of some of the pages or somehow consolidating the info into a master page? Thanks!
Technical SEO | | moziodavid0 -
URL content format - Any impact on SEO
I understand that there is a suggested maximum length for a URL so as not to be penalized by search engines. I'm wondering if I should if should optimize our ecommerce categories to be descriptive or use abbreviations to help keep the URL length to a minimum? Our products are segmented into many categories, so many products URL's are pretty long if we go the descriptive route. I've also heard that removing the category component entirely from a product URL can also be considered. I'm fairly new to all this SEO stuff, so I'm hoping the community can share their knowledge on the impact of these options. Cheers, Steve
Technical SEO | | SteveMaguire0 -
URL with tracking code
Hi there, At the company i am currently working for we have a problem with shortcut url with tracking in it. They send a lot of brochures with a shortcut URL which redirects to the page of the event with tagging. For example The real URL is:
Technical SEO | | RuudHeijnen
http://www.sbo.nl/cursussen/schoolleider-primair-onderwijs/ The URL in the brochure is:
www.sbo.nl/schoolleiderpo this then redirects to: h
ttp://www.sbo.nl/cursussen/schoolleider-primair-onderwijs/?utm_source=direct&utm_medium=shortcut&utm_campaign=schoolleiderpo Now we can measure the effect of the brochure on on-line traffic and conversion. This is great but a lot of website link to that shortcut url and if the event is put offline the links to it generate an 404. We have now about 800 backlinks that generate this 404 and i want to fix it. Another big problem "i think" is the possibility that google will index this url with tagging. Now i have 2 options: 1. look at al the url with that 404 and redirect them with a 301 to the best page 2. create the shortcut on an page that is most suitable but then i will get the tagging in the URL and i guess google will see this as dublicate content. It is possible that in the future the shortcut url will be used again. What would you suggest as the best sollution.0