Free Referring Domains Analyzer

The Referring Domains Analyzer processes up to 100 referring domains, classifying each by quality tier (high/medium/low), TLD type, and geographic origin, then calculating a Domain Diversity Score.

Yes, completely free with no registration required.

Domains are classified based on TLD patterns: .com/.org/.edu/.gov are high quality; .xyz/.click/.info are low quality. Country-code TLDs are medium quality.

Absolutely. The Referring Domains Analyzer processes everything client-side in your browser. No data is uploaded to or stored on any server. Your content remains private on your device at all times.

Yes, the Referring Domains Analyzer is fully responsive and works on smartphones and tablets. You can use it on any device with a modern web browser -- no app download required.

No account or registration is needed. Simply open the Referring Domains Analyzer in your browser and start using it immediately. There are no sign-up walls or usage restrictions.

Simply enter your input in the provided field, adjust any settings to your preference, and the tool will process it instantly. You can then copy the result to your clipboard or download it.

The Referring Domains Analyzer works in all modern browsers including Chrome, Firefox, Safari, Edge, and Opera. For the best experience, use the latest version of your preferred browser.

A backlink is a single link pointing to your site, while a referring domain is a unique website that sends one or more of those links. If one blog links to you from five different articles, that counts as five backlinks but only one referring domain. Search engines weigh distinct referring domains far more heavily than raw backlink count, because one trusted site repeating links carries diminishing value compared to many independent sites vouching for you. That is why a profile of 200 backlinks from 30 domains is usually weaker than 100 backlinks from 90 domains. This analyzer focuses on the domain level: it groups subdomains under their root and flags duplicates so you see your true referring-domain count. Paste your export to see how many unique domains actually back your site.

The Diversity Score is a 0 to 100 number that combines four factors from your pasted list. First, TLD variety rewards having links across different extensions rather than all .com. Second, the ratio of unique root domains to total entries rewards distinct sites over repeated ones. Third, the share of high-quality TLDs like .com, .org, .edu, and .gov lifts the score, while spammy extensions drag it down. Fourth, a geographic bonus is added when country-code TLDs such as .uk or .de appear, signaling international spread. A result in the 70s or above points to a natural, varied profile; below 40 usually means over-reliance on a few domains or a tilt toward low-quality TLDs. It is a relative health gauge, not a Google metric. Run your domains through the tool to see your own score and its breakdown.

The analyzer classifies .edu, .gov, and .ac as authority TLDs because their registration is restricted to accredited institutions, governments, and academic bodies, making them difficult to acquire and rarely associated with spam. Historically, links from universities and government sites have correlated with strong trust signals, so a backlink from one is hard to fake and tends to reflect genuine editorial endorsement. Standard trusted extensions like .com, .org, .net, .io, and .co are also rated high quality, while historically spammy ones such as .xyz, .click, and .tk are flagged low. Keep in mind this is pattern-based triage from the domain extension, not a live crawl of each site's actual authority, so a low-traffic .edu still scores high here. Use it to spot how much of your profile leans on genuinely trusted domains.

In Google Search Console, open Links, then under External links choose Top linking sites and export the list. In Ahrefs, open Site Explorer, go to the Referring domains report, and export to CSV. SEMrush and Moz offer equivalent referring-domain exports in their backlink sections. Once exported, copy the domain column and paste it into the analyzer with one domain per line. You do not need to clean the data first: the tool strips www, adds a missing protocol, and groups subdomains under their root domain so your counts stay accurate. It processes up to 100 domains at a time, so for larger profiles work in batches or focus on your top referring domains. If you just want to see how it works, click Load Sample before pasting your own export.

Search engines apply diminishing returns to repeated links from the same domain. The first link from a website passes the most signal; the tenth link from that same domain adds very little, because it is still a single source vouching for you. A profile where a few domains appear many times looks thin and potentially manipulated, whereas one earned from many distinct sites looks natural and harder to game. That is why this analyzer separates total entries from unique root domains and lists every duplicate it finds, so you can see how concentrated your profile really is. A high duplicate rate is a cue to diversify by targeting fresh referring domains through outreach rather than chasing more links from sites that already link to you. Paste your list to see which domains are repeating and how that affects your diversity.