Ahrefs

We started implementing the Referring Domains history back in 2013, and thus for all websites, Referring Domains data will show up at that point in time in early 2013 as a sudden spike.&nbsp;

<a href="https://help.ahrefs.com/site-explorer/faqs-and-troubleshooting/why-do-i-see-a-decrease-in-my-referring-pages-graph-despite-an-increase-in-my-referring-domains-graph">Why do I see a decrease in my Referring pages graph despite an increase in my Referring Domains graph?</a>

<a href="https://help.ahrefs.com/site-explorer/faqs-and-troubleshooting/why-is-the-number-of-referring-domains-on-my-dashboard-different-from-the-site-explorer-overview">Why is the number of referring domains on my dashboard different from the Site Explorer Overview?</a>

<a href="https://help.ahrefs.com/site-explorer/faqs-and-troubleshooting/why-does-a-website-have-more-referring-ips-than-referring-domains">Why does a website have more referring IPs than referring domains?</a>

- <a href="https://help.ahrefs.com/site-explorer/faqs-and-troubleshooting/why-do-i-see-a-decrease-in-my-referring-pages-graph-despite-an-increase-in-my-referring-domains-graph">Why do I see a decrease in my Referring pages graph despite an increase in my Referring Domains graph?</a>
- <a href="https://help.ahrefs.com/site-explorer/faqs-and-troubleshooting/why-is-the-number-of-referring-domains-on-my-dashboard-different-from-the-site-explorer-overview">Why is the number of referring domains on my dashboard different from the Site Explorer Overview?</a>
- <a href="https://help.ahrefs.com/site-explorer/faqs-and-troubleshooting/why-does-a-website-have-more-referring-ips-than-referring-domains">Why does a website have more referring IPs than referring domains?</a>

Find out why there is a spike in RDs in 2013.

Why is there a 'spike' in Referring Domains in 2013?

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