To check website authority, run the domain through a site explorer and read four numbers together: the authority score itself, referring domains, organic keyword count, and estimated organic traffic. Any one of those alone will mislead you. Read as a set, they tell you whether a site has genuine standing in search or just a big number on a scale nobody at Google has ever used.
That last point is worth stating plainly. Domain Rating, Domain Authority, Authority Score, and every similar metric are third-party inventions. Google does not publish a domain-level authority score and has repeatedly said it does not use one internally in the way SEO tools model it. These scores are useful comparative shorthand built from link graphs. They are not the thing Google measures.
What authority scores actually calculate
Every vendor’s formula differs, but they share a common core: crawl a large portion of the web, build a link graph, and score each domain by the quantity and quality of the domains linking to it, weighted recursively by those linking domains’ own scores. A link from a site with a score of 80 counts for far more than fifty links from sites scoring 5.
Three properties follow from that design and they change how you should read the number:
- The scale is logarithmic. Going from 10 to 20 might take six months of steady link acquisition. Going from 60 to 70 can take years. The gap between 25 and 35 is small in practice; the gap between 55 and 70 is enormous.
- Scores are relative to the vendor’s index. The same domain can score 42 on one tool and 51 on another. Neither is wrong — they crawled different portions of the web. Never compare a score from one tool against a score from another.
- They measure links only. Content quality, user experience, topical relevance, site speed, and E-E-A-T signals are invisible to them. A domain can score 70 on the back of an old, irrelevant link profile and rank for almost nothing.
The four-number check that actually tells you something
Pull these together whenever you assess a domain, whether it is a competitor, a link prospect, or a site you are considering buying.
- Referring domains. The count of unique linking domains. Far more meaningful than total backlinks — 8,000 links from 40 domains is a sitewide footer link, not authority. Look at the growth curve too: steady acquisition over years reads as organic; a vertical spike reads as a purchased campaign.
- Organic keywords. How many terms the site ranks for. This is the reality check on the authority score. A domain scoring 60 that ranks for 300 keywords has links without relevance — something is off.
- Estimated organic traffic. Modeled from rankings and volume, so treat it as an order of magnitude rather than a figure. Still, a site with high authority and negligible traffic is a warning sign.
- Top pages and anchors. Where the authority is concentrated, and what anchor text points at it. A profile full of exact-match commercial anchors is manipulated; a natural profile is mostly brand names and bare URLs.
Checking your own site versus checking a competitor
For your own domain, third-party authority is the least useful metric available to you, because you have something better. Google Search Console reports your actual impressions, clicks, and average positions — real data about your real site. Use authority scores for your own domain only as a rough progress marker between quarters, never as a KPI. Reporting “our DR went from 22 to 26” says almost nothing about whether the business got more customers.
For competitors, the reverse holds: you have no access to their Search Console, so third-party estimates are the only window you have. Here authority scores earn their keep. Line up four or five rivals with their referring domains, organic keyword counts, and top pages, and the competitive landscape becomes legible in about ten minutes. The number that matters most is not the leader’s — it is the weakest site currently on page one for the keywords you want. That is the bar you actually need to clear.
Vetting link prospects: authority is the wrong first filter
Most people sort a prospect list by authority score descending and start at the top. Better order:
Filter first on topical relevance. A score-30 site in your exact niche passes more useful signal than a score-70 general news site that has no thematic connection to you. Then check whether the site gets real organic traffic — a high score with flat traffic often means an expired domain rebuilt for link selling. Then look at outbound patterns: a site publishing five “sponsored guest posts” a week to unrelated industries is a link farm regardless of its score. Check for spam and toxicity flags, but treat them as prompts to look closer rather than verdicts.
Only after all of that does the authority number matter, and then mostly for prioritizing your outreach effort among prospects that already passed the real tests.
How to raise your own authority
There is no shortcut, and the mechanism is simple even though the work is not: earn links from more unique, relevant domains over time. Concretely, that means publishing assets worth citing — original data from your own business, genuinely useful free tools, definitive guides on topics nobody has covered properly. It means digital PR at whatever scale you can manage, including surveying your own customers and pitching trade publications. It means claiming supplier, partner, and association listings. And it means converting unlinked brand mentions, which is the cheapest win available to almost every site.
A backlink gap analysis makes the target list concrete: domains linking to three or four of your competitors but not to you are pre-qualified prospects who already publish about your topic. Cost bands for paid placements, from any source, are directional estimates only — relevance, quality, and velocity determine the outcome far more than the sticker price. And links remain necessary but not sufficient: thin content with strong links still loses to substantial content with adequate links.
What to do with the number once you have it
Use authority as a filter and a comparator, never as a goal. Three practical applications: deciding whether a keyword is winnable by comparing your score against the weakest page-one result, prioritizing outreach among already-relevant prospects, and tracking directional progress on link acquisition over quarters rather than weeks.
Everything else — whether your content is good, whether your pages match intent, whether your site is technically sound, whether you are actually getting customers — is measured elsewhere. SEO Rocket’s site explorer covers the checking side, with authority, backlinks, referring domains, organic keywords, top pages, anchors, and spam flags for any domain, plus content and backlink gap analysis against up to five competitors, at a flat $50 a month. Just remember what you are looking at: a useful model of the link graph, not a verdict from Google.
