A nofollow attribute is a way to tell search

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engine bots not to follow certain links.

There are cases where this attribute is very useful, such as preventing search engines from following links in registration forms, but in the vast majority of cases, there is no obvious reason to use it in internal linking on your website.

Check your nofollow links to see if there is a good reason for using this attribute, otherwise remove it as you will be losing your PageRank.

While this quote is a bit dated, we have not been given any information on algorithm updates as of yet, PageRank sculpting by Matt Cutts .

So what happens when you have a page with “ten PageRank points” and ten outbound links, and five of those links are nofollow? Let’s put the decay factor aside and focus on the heart of the question. Originally, the five non-nofollow links would have passed along two PageRank points each (in essence, the nofollow links didn’t count toward the denominator when dividing PageRank by the page’s outdegree). Over a year ago, Google changed the way PageRank is distributed so that the five non-nofollow links each pass along one PageRank point.

SEO Internal Linking - Nofollow Attributes on Outbound External Links
You can use the nofollow attribute to prevent search engines from following untrusted links from email germany your site, such as spam comments.

A good question is: why do you keep those toxic links in the first place?

Google recommends using the nofollow attribute on paid links so that they do not affect your search results.

A nofollow attribute prevents bots from following the link, but visitors can still click on them, and you're still wasting your PageRank, so it's always best to get rid of these types of links that you don't trust.

Internal SEO Linking - Orphan Pages Sitemap
An orphan page is a page on a website that does not have any incoming links.

Typically, these are pages that do not have quality content, so there is no reason to ask search engines via your sitemap.xml file to crawl them and therefore waste some of your crawl budget on them.

Review all orphan pages in your sitemap.

If the page has valuable content and you need it to be indexed, find a way to link to it internally from other pages on your website.

If the page serves a specific purpose and does not require internal linking, still consider whether or not to index it, otherwise remove it from your sitemap.