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Short answer, it won't have any negative impact on the SEO.
For more details
Noreferrer
Because it prevents passing the referrer information to the target website, this will change the behavior from Google analytic traffic which will show the link as Direct Traffic instead of Referral from some website.
Noopener
Have no impact at all, should always be used ...
2
They do some kind of redirects that I can't really understand at the moment why they do those ways.
Having worked for sites with product links like this, the redirects have nothing to do with SEO. Because they make money when they are clicked, they have to be accurately tracked. They often have to be tracked by the publisher, the advertiser, and ...
2
You have the following options (HTML attributes):
rel="sponsored": Mark links that are advertisements or paid placements (commonly called paid links) with the sponsored value.
rel="ugc": Mark user-generated content (UGC) links, such as comments and forum posts, with the ugc value.
rel="nofollow": Use the nofollow value when ...
2
According to the Mozilla website, about the «ARIA: heading role»:
The best way to use this role is to not use it at all, and instead use the native heading tags through as shown in the example above. The heading role and aria-level attribute should only be used to retrofit accessibility on legacy code that you cannot make major changes to.
Also, about ...
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Is this happening for all plugins you install or just Yoast. Usually it can be solved by adding this line in wp-config.php
define('FS_METHOD','direct');
FTP or sFTP are same. Just use Port 22 to make it sftp and for FTP port is 21
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sitemap and canonical url for website that has only one page: "index.html" hosted using GitHub Pages
The message you're receiving from Google "Indexed, not submitted in sitemap" is typical of any page Google finds through any means other than a sitemap. It's not an error.
If you only have one page, index.html and Google has already found it, you really don't need a sitemap. Sitemaps are not necessary in most cases and Google seems to prefer ...
1
nofollow doesn't mean a link won't cause any SEO related issues. nofollow means the link won't pass PageRank. However:
Googlebot still uses nofollow links for URL discovery and will crawl them.
Using nofollow doesn't redistribute the PageRank that would have gone to that link to other links, Google says it discards that PageRank.
Google recently says that ...
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