You can learn an enormous amount about why a website ranks — or doesn’t — in about two minutes, if you know which numbers to look at.
That’s true of your own site and, more usefully, of the competitors beating you. This is how to check the SEO health of any website, what the metrics actually mean, and the tools that show them to you.
The numbers that actually matter
Ignore the vanity stuff. When you’re sizing up a site, four things tell you most of the story.
Domain Authority (DA) is a score, usually out of 100, predicting how well a site is likely to rank. It’s not a Google metric — it’s an estimate from SEO tools — but it’s a useful shorthand. A new blog might be a 5; an established site, a 40; a national newspaper, an 80+. The point isn’t the exact number, it’s the gap between you and the people you’re trying to beat.
Backlinks — how many other sites link to it, and how good those links are. This is the engine behind most of that authority.
Top content — which of their pages pull the most links and attention. This tells you what’s working in your niche, which is gold when you’re deciding what to write.
Trust and citation flow — two more authority signals, measuring the quality and quantity of links respectively. Useful for spotting a site that looks big but is propped up by junk links.
Read those four and you can tell, quickly, whether a competitor is beatable or out of your league for now.
Checking your own site first
Before you study anyone else, check yourself — most people never do.
Google Search Console is the essential free starting point. It won’t give you a domain authority score, but it shows what you actually rank for, where, and how often you’re clicked. If you do one thing this week, connect it.
For the authority-style metrics, you’ll need a dedicated SEO tool, because Google doesn’t hand those out.
The easy way to check any site: SiteProfiler
When I want the full picture on a domain — mine or a rival’s — I use SiteProfiler, part of the Mangools suite.
You type in a domain, click analyse, and it gives you the lot on one screen: domain authority and page authority, the backlink profile, trust and citation flow, their top-performing content, and their main competitors. No hopping between five tools, no spreadsheet gymnastics. Everything that matters, in one view.
That last part — top content and competitors — is the bit I find most useful. It doesn’t just tell you how strong a site is; it shows you exactly which of their pages are winning, so you know what to take aim at.
Like the rest of Mangools, the appeal is that it does what the expensive suites do, for a price a normal person can justify. Plans start around $29 a month, with a 10-day free trial and no credit card needed — plenty to profile yourself and your top three competitors in an afternoon.
Try SiteProfiler free for 10 days
Putting it to work
Here’s the simple routine: profile your own site to get your baseline. Profile the three sites beating you for your main keyword. Compare the authority scores and backlink counts to see how big the gap really is — and look at their top content to see what’s earning them the rankings.
If the gap is small, you can compete now with better content. If it’s huge, target easier keywords first and build authority before taking on the giants.
Either way, you’re no longer guessing. And in SEO, knowing exactly who you’re up against is most of the battle.
Check any site’s SEO with SiteProfiler
Affiliate disclosure: some links above are affiliate links. If you sign up through them it costs you nothing extra, and it helps keep this site running. I only recommend tools I’ve actually used.