Moz is not indexing all my backlinks

[mzakaria]

Why is there a difference in the backlinks of my website when checked in moz.com and SEMrush.com.

[GastonRiera]

Hi Malik,

That difference is because Moz and SEMrush uses their own index.
Also keep in mind that they update their index in differente paces. Moz does it nearly once a month. Also.
I can only tell you how Moz bot works: It starts with a base set list of domains, where following all links inside that sites. If One of the sites having links to your website is not linked previously and Moz bot does not get to that site, you will never see it in OpenSite Explorer.

It may be tricky to understand. Is it clear?

Hope it helps.
Best luck.
GR

[Igor.Go]

Same reason there's a difference between the number of backlinks between SEMrush and Majestic, Majestic and Ahrefs, Ahrefs and MOZ or all of the third-party backlink tools and Search Console.

These tools scan the web at different paces and start from different places. That's why some of them find backlinks that others don't.