How to Vet a Guest Post Site

Quick answer: Vet a guest post site by checking real organic traffic and topical relevance first, then treating DR and DA as secondary hints. Domain Rating (Ahrefs) and Domain Authority (Moz) are third-party estimates, not Google metrics, and both can be inflated with bought links. Run every candidate from the directory through the checklist below before you pitch or pay.

Start here: DR and DA are estimates, not truth

Vetting is the step that separates people who waste their outreach budget from people who compound it, so it is worth doing before you write a single pitch. Every “DR 60 guest post” offer leans on a number that Google never publishes and does not use. Domain Rating is Ahrefs’ 0–100 estimate of a site’s backlink strength; Domain Authority is Moz’s competing estimate. They are useful shorthand, but they measure links, not readers, and links can be bought. A site can manufacture a high DR with a burst of low-quality backlinks while having almost no real audience. So DR and DA are a first filter, never the verdict. What actually predicts whether a placement helps you is traffic, relevance and quality.

The full vetting checklist

Check	What good looks like	Red flag
Organic traffic	Meaningful monthly organic visits from search	High DR, near-zero traffic
Traffic trend	Stable or rising over 12 months	Sharp drop (possible penalty) or flat since launch
Topical relevance	Site covers your subject with depth	Random topics, no coherent theme
Ranking keywords	Ranks for real terms people search	Ranks only for its own brand or nothing
Content quality	Original, edited, human, useful	Thin, spun, or obvious AI filler
Author bylines	Named writers with bios	“Admin” on every post
Outbound links	Editorial, relevant, measured	Every post stuffed with client dofollows
Link neighbourhood	Clean niches nearby	Casino, loan, adult, pharma spam present
Indexation	Pages indexed in Google	Site or recent posts not indexed
Engagement	Comments, shares, social presence	Total silence at high DR

How to run the checks in ten minutes

Traffic reality. Drop the domain into a traffic estimator (Ahrefs, Semrush or Ubersuggest). Compare estimated organic traffic to its DR. A big gap — high DR, tiny traffic — is the single clearest link-farm signal.
Relevance. Skim the categories and the last 15 posts. Would your article look native here, or wildly out of place? Relevance beats raw authority for both readers and rankings.
Keyword footprint. Check what the site actually ranks for. If it ranks only for its own name, it is not pulling in a search audience you can reach.
Quality read. Read one full article. Is it edited and genuinely useful, or filler built around links? You are judged by the company you keep.
Neighbourhood scan. Look at recent outbound links and nearby posts. Gambling, loan or pharma links next to your placement drag its value down.
Index check. Search site:theirdomain.com and confirm recent posts appear. A guest post on an unindexed page does nothing.

What DR and DA actually measure — and miss

It helps to know what these scores are made of. Domain Rating scores the strength and quantity of a site’s backlink profile on a logarithmic 0–100 scale, so climbing from 20 to 30 is easy and 70 to 80 is hard. Domain Authority does something similar with Moz’s own index and is a prediction of ranking ability, not a ranking factor. Neither looks at your content, your audience, or whether Google actually trusts the site. Both are also only as fresh and complete as the crawler behind them, so a new but genuinely good site can show a low score while a stale link-farm shows a high one. That is the gap you are checking for: the number describes links, and you care about readers.

This is also why a single metric is so easy to game. Buy a few hundred low-quality backlinks and DR ticks up within weeks, with no new readers and no editorial standard. The checklist above works because it triangulates — traffic, keywords, quality and neighbourhood are all much harder to fake together than one link-based score is to inflate on its own.

Relevance beats authority — a worked example

Imagine two options: a DR 70 general site with sky-high DR but flat traffic and posts spanning crypto to casinos, or a DR 40 blog dedicated to your exact niche with steady organic growth, real comments and named authors. The DR 40 site is almost always the better placement — it reaches an audience that cares about your topic and sits in a clean neighbourhood, while the DR 70 site is likely engineered for link sales. Chase relevance and real readers, not the biggest number. The same principle scales down: a small, genuinely read niche newsletter or community blog with a DR in the teens can send you more qualified referral traffic than a bloated aggregator ten times its size. When you catch yourself picking a site purely because its DR is high, stop and ask who actually reads it — if you cannot answer, the number is doing your thinking for you.

The disclosure and risk check

Vetting is not only about value — it is about risk. If a site sells “dofollow” placements, understand that a paid link passing PageRank violates Google’s link-scheme guidelines; compliant paid links carry rel="sponsored" or nofollow. A site that promises dofollow links for a flat fee is advertising the exact thing Google warns against, which tells you how it operates. Prefer earned, editorial placements, and when a link is paid, insist on proper disclosure. For related reading, see link insertions and niche edits.

Finally, keep a simple record of your verdicts. For every site you assess, note the DR, the real traffic, the relevance call and a one-line reason to pursue or pass. Over a few weeks that log becomes its own filter: you stop re-checking sites you already rejected, you spot networks that keep reappearing under different names, and you learn what genuine quality looks like in your niche faster than any single metric could teach you. Vetting well once saves the same work ten times over.

Frequently asked questions

Is DR or DA more important when vetting a site?

Neither should lead your decision. Both are third-party estimates of link strength, not Google metrics, and both can be inflated with bought links. Use them as a rough first filter, then weight real organic traffic and topical relevance far more heavily.

How do I check a site’s real traffic?

Enter the domain into a traffic estimator such as Ahrefs, Semrush or Ubersuggest and look at estimated organic traffic and its 12-month trend. Compare that to the DR — a high DR with negligible traffic is the classic sign of a link farm rather than a real publication.

Why does relevance matter more than authority?

A link and a placement carry the most value when the surrounding content and audience match your topic. A relevant, well-read niche blog reaches people who care and sits in a clean neighbourhood, whereas a high-DR but off-topic site offers little context and often more risk.

What is an instant reason to reject a site?

A high DR paired with near-zero organic traffic, “admin” bylines on every post, walls of unrelated dofollow links, or a neighbourhood full of casino, loan or pharma spam. Any one of these signals a link shop rather than a genuine site worth pitching, and no metric is high enough to redeem it. When you see the pattern, move on — there are always more legitimate sites on your list.