16 votes
Accepted

What if using rel="dofollow" and rel="nofollow" together for a link?

No such thing as dofollow: The dofollow attribute does NOT EXIST in either rel or meta, this is due to the fact that by default both pages and links are considered dofollow unless you use nofollow. ...
Simon Hayter's user avatar
14 votes

What is the difference between "nofollow noopener" vs. just "nofollow"?

nofollow will give you granular control to individual external links such as a webpage you don’t necessarily endorse or an internal link you want to prevent bots to access or index such as your ...
Raul Reyes's user avatar
  • 2,476
11 votes
Accepted

Do “noopener noreferrer” links count as backlinks?

Be worried... that your links do not use nofollow Personally I'd be more worried about the fact they do not use rel="nofollow", paid links must use nofollow otherwise your going to feel the full ...
Simon Hayter's user avatar
7 votes
Accepted

What is meaning of "nofollow me noreferrer" in a rel attribute of a link?

Rel attribute can contain multiple value. Here is reference link. The value of this attribute is a space-separated list of link types. <a href="http://www.website.com" rel="nofollow"/> <a ...
Goyllo's user avatar
  • 5,507
7 votes
Accepted

Should rel="noopener" be set on links to external sites even if I own the site?

Is it necessary? No. Is it best practice to do it anyway? Yes. Here are a few reasons: Ownership and management of external sites can change, leaving them in less trusted hands. You would need to ...
Maximillian Laumeister's user avatar
6 votes

Are the "author" and "publisher" link types still relevant for Google+? (2016)

The tag attributerel="autor" is not relevant for Google anymore, the preferred way to specify the authorship is through the proper schema.org snippet. Authorship in web-search Authorship ...
marcanuy's user avatar
  • 2,644
5 votes

What if using rel="dofollow" and rel="nofollow" together for a link?

The tag rel="dofollow" doesn't exist, it does nothing if anybody uses it. Having two rel attributes in the same tag is an error, regardless of their value.
Josip Ivic's user avatar
  • 3,878
5 votes

What is the difference between "nofollow noopener" vs. just "nofollow"?

rel="noopener" is used so that when a new window is created upon clicking a link, malicious javascript code running in the new window will not access your previous window via the window.opener ...
Prinny's user avatar
  • 1,388
4 votes
Accepted

In <link rel="icon">, is the sizes attribute required or optional?

I finally found what I was looking for. I've added emphasis to the quote below: The sizes attribute gives the sizes of icons for visual media. Its value, if present, is merely advisory. If specified, ...
Rounin's user avatar
  • 2,335
4 votes
Accepted

Should I remove rel next/prev from a single WordPress article?

Your understanding is correct. The sequential link types are for documents that are "part of a sequence". I would only use it for blog posts that belong together ("… Part 1", "… Part 2"), for a blog ...
unor's user avatar
  • 21.7k
4 votes

Using rel="me" on Wix-hosted site

You can add it into the head of the home page using a link tag in page settings. home page > settings > Advanced SEO panel > Add new tag paste this: <link rel="me" href="...
Simon Cox's user avatar
3 votes

What would be the proper rel value for an api endpoint?

We have tended to add API paths on an appropriate (to our applications) data- attribute on a suitable element close to the usage. <input type="text" name="term" data-...
Zhaph - Ben Duguid's user avatar
3 votes

What is the difference between "nofollow noopener" vs. just "nofollow"?

The noopener link relationship has nothing to do with the nofollow link relationship. Google says:- When your page links to another page using target="_blank", the new page runs on the same ...
zigojacko's user avatar
  • 5,072
2 votes

Is there a standard format for declaring a web page's informational relationship to multiple social media accounts?

If your goal is to cover the most social media platforms, I would recommend using Open Graph tags and getting used to their limitations. The Open Graph standard is supported by Twitter, Facebook, and ...
Maximillian Laumeister's user avatar
2 votes

Should rel="noopener" be set on links to external sites even if I own the site?

I fully agree with Max's answer, rel-noopener is always best practice. One important thing to add: When linking to external sources, it's common to have them open in a new tab. Ex: supplementary links ...
Mike Ciffone's user avatar
  • 6,360
1 vote

How to tell search engines not to check a checkbox?

It seems that Google only follows GET forms. So make it a POST. That means that if a search form is forbidden in robots.txt, we won't crawl any of the URLs that a form would generate. Similarly, we ...
Rohit Gupta's user avatar
  • 2,466
1 vote
Accepted

Combining RDFa Lite author schema and rel="author" HTML markup

The rel attribute has two different purposes, which might conflict: Plain HTML: providing a link type RDFa: providing a property (just like the property attribute, but with some technical differences)...
unor's user avatar
  • 21.7k
1 vote

Only rel="prev" attribute

On the last page you only need to use PREV. This is detailed on Google's help page regarding Indicate paginated content. On the final page of the sequence (http://www.example.com/article-part4.html>...
Simon Hayter's user avatar
1 vote
Accepted

Can Googlebot see pagination meta tags created with JavaScript?

Google can probably interpret these tags correctly when they are set by JavaScript. In 2014 Google announced that it executes JavaScript before indexing pages. I don't know a good way of testing ...
Stephen Ostermiller's user avatar
1 vote

Chrome prerender "Non-Empty Browsing Instance"

Non-Empty Browsing Instance appears if you have 2 windows of Chrome open. Keep a single window open and you will not get this error.
Blaise's user avatar
  • 11
1 vote
Accepted

Chrome prerender "Non-Empty Browsing Instance"

After experimenting and fixing it, the "Non-Empty Browsing Instance" seems to be triggered by JavaScript changing DOM in the prerendered page. The way to solve it is to block such JS until the ...
Ivan Čurdinjaković's user avatar

Only top scored, non community-wiki answers of a minimum length are eligible