Duplicate content.
Duplicate title tags.
Duplicate meta descriptions.
Lack of H1 tags.
Multiple H1 tags.
Hreflang language mismatch issues.
Forget mobile page acceleration with AMP
SEO Mistakes - AMP Mobile Pages Infographic
It is very important to adapt the SEO of your website pages to mobile devices.
We already know that mobile-friendliness will be the default r philippines number list anking criterion for mobile and desktop for Google in September 2020 (article in English).
This means that as a webmaster, you must ensure that your site's HTML code complies with Google's AMP guidelines before September.
This will help you avoid potential damage to your search performance.
Find invalid AMP pages on your website with the Site Audit tool and fix them.
These could be issues with the HTML, style, layout, or template of the page.
Most common issue related to mobile compatibility:
HTML issues with AMP can be related to styling or layout, and as mentioned above, can affect the indexability of the site.
In this regard, Iñaki Tovar, CEO of Webpositer, has the following opinion:
When AMP came out, all of us in the sector jumped at the chance to try it out for our sites like good early adopters.
The reality is that it turned out to be something technically difficult to implement that didn't always work as expected and caused more problems than benefits.
Over time, Google has refined the issue a lot and today it is more SEO friendly than ever.
Even so, unless you have a news website, I don't see the need to mess with AMP when you can achieve very similar loading speeds by properly optimizing the responsive versions of our sites.
Not paying attention to the performance of your website
SEO Mistakes - Website Performance Infographic