Google’s John Mueller answered a question about the impact of bad HTML, spelling, and grammar on search rankings. He gave two answers because HTML is a technical question and spelling and grammar are quality issues that can affect the user experience.


“Does Google search alerts check for broken HTML or typos or grammatical errors for search ranking?”

There is a clear answer to some questions, and John Mueller usually answers immediately.

For this question, John Mueller stopped to think for a moment before answering.

The effect of broken HTML on search rankings

He was first responsible for the broken HTML and explained that the HTML needs to be broken down so that Google cannot understand it.


“These are kind of different situations. Uh … for the most part, we don’t care about HTML if it’s broken or not.

Most of the web doesn’t have valid HTML, and we have to live with it.

The main exceptions I know about broken HTML are if it really breaks in a very bad way in the sense that if we can’t identify the page as mobile friendly.

Or if we don’t recognize that this is a title or heading, of course we can’t do a lot of things with HTML.

It’s … kind of a case there and usually such broken pages are very broken in the browser as well.

So if you’re looking at a page and don’t even load properly, you’ll probably need to fix it.

However, if you are viewing the page and it looks normal in the browser, then even if it has broken HTML, it is probably okay. “


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Poor spelling and grammar are quality issues

Next, John Mueller answered the second part of the question, which dealt with poor spelling and grammar in the context of search performance.

He notes that poor spelling grammar is something that users see and thus becomes a quality issue.


“As for spelling mistakes, grammatical errors, I think it’s a little more than almost like a gray zone, because on the other hand, we need to be able to identify what the page is about.

And if we can’t identify it because there are so many errors on the text page, it makes it harder.

Another aspect is also that we try to find really high quality content online and sometimes it can feel like the page is of lower quality content because it has a lot… some kind of grammatical and technical errors.

So that’s something I think I would only fix if you knew about such problems.

I would say almost… like… spelling and grammar are probably a higher priority for most websites than broken HTML.

But it’s … I mean … it’s really hard to compare because they’re very different things, because one is more of a technical problem (the HTML side) and the other is almost like a quality issue and something that users tend to do. see so it’s like a kind of thing. “


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Classification of broken HTML, poor spelling, and poor grammar

HTML needs to be very bad before it affects rankings because it makes it difficult for Google to understand a web page because it is unable to identify page elements such as titles and headings, or even the location of the content.

Some HTML tags are so weak that page elements such as

, leak to a visible part of the webpage. Something like that could make it difficult for Google to understand the website.

HTML that does not conform to web standards is normal and can be understood by Google (and web browsers).

John Mueller provided a rule of thumb test that says a web page can’t be done well in a browser, it probably needs to be fixed.

Next, Mueller explained that poor spelling and poor grammar can affect rankings because it affects users and is thus a quality issue.

It’s kind of similar to his response in the second term hangout automatically translated content that leads to awkward grammar and is likely to have a difficult ranking due to quality issues.


See John Mueller’s answer to the question about broken HTML, poor spelling and poor grammar in about 15 minutes


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