Measured, or N/A
A figure is either a real reading or marked N/A, which means no value was available for that domain. A zero is never put in its place, and one metric never stands in for another: Moz DA is not Ahrefs DR.
Authority Scores
Domain Authority (DA)
Moz's 1–100 score for how likely a domain is to rank, based on its link profile. Profiles also show Moz's referring domains, external links, link propensity and a history series of past DA readings.
"1 (Confirm Manually)" means Moz holds no record of the domain. Moz starts new sites at 1, so that is the value shown, but a missing record can also mean Moz has not yet seen the site. Check it yourself before relying on it.
Spam Score
Moz's percentage of sites with similar features that Moz has found to be penalised or banned. Where Moz has no score, the profile shows N/A, not 0%.
Domain Rating (DR)
Ahrefs' 0–100 score for the strength of a domain's backlink profile. A DR of 0 is a real value for a new domain and is shown as 0.
Reading DA and DR together
The two scores rest on different link indexes and different models, so they often disagree. A small gap means both see a similar link profile. A wide gap is a reason to look at the links yourself, since one index may count links the other ignores. Profiles show the gap as "DA minus DR".
Search Reach
Organic traffic and ranking keywords
Semrush's estimate of monthly visits from organic search, and the number of keywords the domain ranks for. We label it organic traffic rather than traffic from any one country.
Dividing traffic by keywords gives visits per keyword. A very high ratio means a few terms carry most of the traffic; a very low one usually means many rankings on low-volume terms or below the first page.
Traffic cost and Semrush rank
Traffic cost is Semrush's estimate of what the same organic traffic would cost as paid search ads, in US dollars. Semrush rank orders domains by organic traffic; 1 is the highest.
Backlinks and PBL
Backlinks are counted at three levels: to the exact homepage URL (shown as PBL, page backlinks), to the hostname, and to the whole domain including subdomains. On large sites the three can differ by orders of magnitude.
The Domain's Own Records
Registration and domain age
Registration date, expiry date, last change, registrar, status locks, nameservers and DNSSEC come from the domain's public registry record. Age is counted from the registration date. When the registry publishes no creation date, the profile says not published.
Domain age is the age of the name, not of the business. A domain registered long before the current site launched will look older than the site is.
Robots.txt and AI crawlers
Profiles show how a domain's robots.txt treats eight AI crawlers: GPTBot, ClaudeBot, Google-Extended, PerplexityBot, CCBot, Bytespider, Applebot-Extended and Meta-ExternalAgent. For each, the profile says whether the file gives it a rule of its own or whether only the general rules apply, and how many paths those rules disallow.
Sitemaps
Profiles list the sitemaps a domain declares. A sitemap index lists other sitemaps, so its count is the number of child sitemaps, not pages.
The Written Profile
Each profile is written for one site, from that site's own pages and from named sources such as company filings and official documentation. Every factual claim carries a numbered link to its source, and the profile shows the date its sources were read.
Profiles in the same category inevitably share some facts. General explanations therefore live on this page rather than being repeated, and each profile is checked against every other before it goes live, then rewritten if two read alike.
Freshness
Each profile is dated. Third-party metrics move every month, so treat any figure as a reading on that date, not a permanent property of the site.