How to Vet a Guest Post Site Before You Buy a Link

Bad guest post placements don't just waste money — they actively harm your rankings. Links from low-quality, AI-spam, or PBN sites trigger Google's link spam algorithms and can drag your entire domain into a manual penalty. Here is the 8-point vetting checklist we run on every placement before approving it.

1. Domain Rating (Ahrefs)

Minimum DR for our standard tier is 30. Premium tier minimum is 50. Below DR 20, the link signal is so weak that even successful placement won't move rankings, and the host site is statistically more likely to be an AI spam farm.

2. Organic Traffic (Ahrefs Organic Traffic)

This is the most important single metric. We require minimum 1,000 monthly organic visitors for standard tier and 5,000+ for premium tier. Sites with high DR but zero organic traffic are almost always artificially inflated link farms — perfect on paper, useless in practice.

3. Traffic Value

Ahrefs' "Traffic Value" metric estimates what the site's organic traffic would cost via paid ads. Real authority sites have traffic value of $5,000+/month; spam sites typically have traffic value under $500/month even with high DR.

4. Niche Relevance

The host site's content topics should overlap meaningfully with your industry. A roofing link from a general "lifestyle" multi-niche blog is worth a fraction of a roofing link from a home improvement publication. Niche-relevant links carry stronger ranking signals.

5. Indexed Page Count

A real publication has 100+ indexed pages with consistent content publication over time. AI spam farms often have 20-50 pages all published within a 3-month window. We check the site's archive for genuine editorial history.

6. Outbound Link Pattern

Real publications link to authoritative sources (.gov, .edu, established publications) and rarely link out to obvious commercial targets. Sites with every outbound link going to commercial sites or affiliate partners are almost certainly link farms regardless of their DR.

7. Content Quality Review

Manually read 3-5 articles on the site. Real publications have human-quality writing, original research, named authors, and substantive content. AI-generated spam is recognizable by generic openings, formulaic structure, and absence of specific examples or expert quotes.

8. Editor Responsiveness

Real publications have editors who push back on weak pitches, request revisions, and have publication standards. Spam farms accept any pitch and publish content without editorial review. The negotiation pattern itself is a quality signal.

Red Flags That Disqualify a Site

• Multiple "categories" covering wildly unrelated topics (gambling + finance + lifestyle + travel)
• Every article has identical author bio templates
• "Sponsored Post" disclosures missing where Google requires them
• Site age under 6 months
• Recent traffic decline of 50%+ visible in Ahrefs (often indicates a Google penalty)
• Hosted on a known PBN IP range

Running this checklist takes 20-30 minutes per placement. Most agencies skip it to scale revenue — and most of their clients eventually get burned. Our guest posting service runs this full vetting checklist on every placement and shares the report with you before pitching outreach.