Domain Authority and Domain Rating are the first numbers most buyers look at when choosing a guest post site, and they're useful — as a filter, not as a verdict. Both metrics are modeled from backlink profiles, which means they can be inflated by exactly the kind of low-quality links a careful buyer is trying to avoid.
This is the checklist we run on every domain before it's listed on Linkslo, and it's the same process worth running yourself on any site you're considering, regardless of where you found it.
Start With the Numbers, But Don't Stop There
DA (Moz) and DR (Ahrefs) estimate authority from backlink data using different methodologies, so the same site can show meaningfully different scores on each. Neither is issued by Google, and neither directly measures ranking potential — they measure the strength of a site's inbound link profile as that specific tool sees it.
Use them as a coarse filter: a site scoring near zero with almost no organic traffic is rarely worth pursuing regardless of price. Above that floor, the number stops being decisive on its own.
Traffic Distribution Matters More Than Traffic Volume
A site showing 50,000 monthly visits sounds appealing until you check where that traffic goes. If it's concentrated on one old post that went viral in 2021 while everything else gets a handful of visits, a new guest post on that domain will likely sit in the quiet majority, not the exception.
What to check:
- Does traffic spread across dozens or hundreds of pages, or a handful?
- Are recent posts (last 3–6 months) getting any visible traffic at all?
- Does the site rank for terms beyond its own brand name?
Editorial Signals Worth Checking
- Bylines: Real, consistent author names with some background, not "Admin" or "Staff" on every post.
- Publishing cadence: A steady rhythm over months or years reads differently than a burst of 40 posts in one week.
- Comment and engagement patterns: Even modest engagement suggests actual readers, not just crawlers.
- Content-to-sponsorship ratio: A site publishing twelve sponsored posts a week across unrelated industries is optimising for link sales, not readership.
A Quick Reference Checklist
| Signal | What to Look For | Red Flag |
|---|---|---|
| DA / DR | Reasonable relative to niche and age | Extremely high score, near-zero traffic |
| Traffic distribution | Spread across many pages | Concentrated on 1–2 old posts |
| Recency | Regular posts in last 3 months | Long gaps, then a burst of sponsored content |
| Bylines | Named, consistent authors | Generic "admin" or no author shown |
| Niche fit | Content overlaps your industry | Random, unrelated topics |
| Link placement | In-body, contextual | Footer, sidebar, or author-bio only |
| Outbound link pattern | Mostly organic, some sponsored | Nearly all posts are sponsored |
Relevance Beats Raw Authority
If a reasonable person browsing that site, with no interest in SEO, would plausibly click through to your page because it's useful to them, the placement is doing its job. If the only connection between the site and your business is a shared keyword, you're paying for a footprint on a domain, not an actual audience.
This is why a DA 35 site squarely in your industry, with modest but real traffic, is often a better buy than a DA 60 general-interest site that happens to have space for a sponsored post.
Checking a Domain Yourself in Ten Minutes
- Pull up the domain in a free backlink checker and scan the link profile for obvious spam patterns (foreign-language link farms, gambling or pharma sites linking in bulk).
- Check 3–5 recent posts for bylines, publish dates and whether the content reads as genuinely useful.
- Search "site:domain.com [your industry term]" to see if the site has organically covered your space before.
- Look at where existing sponsored links sit on the page — in the body, or bolted onto a bio.
The Bottom Line
DA and DR earn their place as a first-pass filter, but the domains worth paying for are the ones that would still make sense to appear on even if link value didn't exist — sites with real readers, a consistent editorial process, and enough topical overlap with your business that the placement reads as a genuine recommendation rather than a purchase.