As mentioned above, while there are 6,263,396 pages with valid titles, only 4,502,255 of them use h1 in the body of their content.
Missing alt attribute
After analyzing this data, it seems that this timeless SEO and accessibility problem is still common. Out of a total of 669,591,743 images, nearly 90% of them lack an alt attribute or use a blank value.
chart 4.png
The pie chart shows the distribution of alt attributes malta mobile database in img tags, with missing alts dominating — missing alts account for 81.7% of the approximately 670 million images we found.
Selector total
img 669,591,743
img alt="*" 79,953,034
img alt="" 42,815,769
img wmissing alt 546,822,940
Language Detection
According to the specification , user agents can use language information specified via the lang attribute to control rendering in a number of ways.
The HTML lang attribute is used to identify the language of text content on the web. This information helps search engines return results in a specific language, and is also used by screen readers that switch language profiles to provide correct accents and pronunciations.
A while ago, John Mueller said that Google ignores the HTML lang attribute and recommended using link hreflang instead. The Google Search Console documentation states that Google uses the hreflang tag to match the user’s language preference to the correct variation of your page.