Missing or invalid structured data item

@clansh thanks for reaching out and for the detailed information.

So when I test your structured data directly in the Rich Results Testing tool (linked from Test Your Structured Data in the results you provided) the blog archive page passes and nothing is flagged:

https://search.google.com/test/rich-results?utm_source=search_console&utm_campaign=sc-amp-test&id=EPIrBZKmEN8SghfIAOJZLw

Currently, Rank Math is supplying the structured data on your AMP URLs as well.

by the way, I found my AMP archive page URL only with …archive/?amp but …archive/amp while my posts are with both …post/?amp and …post/amp. Is that an issue?

When I visit your posts with /amp I am redirected to the ?amp version. Were you previously using Reader mode where both versions are accessible for the post?

Since you are using Transitional mode, your AMP urls are accessed on the site with ?amp query var. So the plugin is working as intended here. Also note that your non-AMP urls will have a link to your AMP urls in the source code, which tells search engines where to locate them (reference).

Hi, Renee

thanks for your quick responses.

So when I test your structured data directly in the Rich Results Testing tool (linked from Test Your Structured Data in the results you provided) the blog archive page passes and nothing is flagged:

https://search.google.com/test/rich-results?utm_source=search_console&utm_campaign=sc-amp-test&id=EPIrBZKmEN8SghfIAOJZLw

Currently, Rank Math is supplying the structured data on your AMP URLs as well.

Yeah. I know it. the result shows good in rich-result test. However, my all AMP archive page gets ‘Missing or invalid structured data item’ warning in AMP test but 0 error in structure data rich-result test.

https://search.google.com/test/amp?https%3A%2F%2Fyiwu.com.tw%2Fblog%2F%3Famp&id=JQJU1PIGovpxzDLte1165Q

I noticed this because of google search console. So there are warnings of AMP archive page in google search console as well.

View post on imgur.com

When I visit your posts with /amp I am redirected to the ?amp version. Were you previously using Reader mode where both versions are accessible for the post?

No, I don’t know AMP much. I chose transition mode immediately when I installed it because my theme provider Astra suggesting that. I don’t remember whether the default setting is reader mode or not. Is there an issue or any drawbacks that I have to notice?

Since you are using Transitional mode, your AMP urls are accessed on the site with ?amp query var. So the plugin is working as intended here. Also note that your non-AMP urls will have a link to your AMP urls in the source code, which tells search engines where to locate them (reference).

Thanks for your explanations. I really appreciate it.

@clansh Sure thing and thanks for your reply!

However, my all AMP archive page gets ‘Missing or invalid structured data item’ warning in AMP test but 0 error in structure data rich-result test.

Since the Rank Math plugin is supplying the structured data here, it’s best to reach out to their team about this error.

I don’t remember whether the default setting is reader mode or not. Is there an issue or any drawbacks that I have to notice?

There isn’t since there is always the link in the source code as referenced before (to the AMP and non-AMP versions respectively), and in your case currently as the links are redirecting in Transitional mode.