Guest Posting & SEO

How to Spot Fake or Spammy Guest Post Sites (Red Flags)

GuestPostOn Editorial Team
GuestPostOn Editorial TeamMarketplace Data & Research
(Updated )5 min read
How to Spot Fake or Spammy Guest Post Sites (Red Flags) — featured image

Finding guest post opportunities shouldn’t feel like dodging landmines.

Yet, in 2025, over 41% of manually discovered “guest post sites” are fake, spammy, or high-risk — according to our analysis of 2,300 sites across niches (SaaS, Health, Crypto, Finance).

Publishing on these sites won’t just waste your time — it can hurt your SEO, damage your brand, or even trigger Google penalties.

In this guide, you’ll learn:

  • ✅ The 7 red flags that expose fake or spammy guest post sites
  • ✅ A quick 5-point verification checklist (print or bookmark)
  • ✅ Comparison: Fake Site vs Verified Site (at a glance)
  • ✅ Tools to check DA, Spam Score, traffic, and ownership
  • ✅ How to report or avoid these sites — without paranoia

👉 First, if you’re still searching manually, learn the smart ways to find guest post opportunities — before you pitch the wrong site.


Table of Contents


Red Flag #1: No Clear Ownership or “About” Page

Real publishers are proud of their work. Fake ones hide behind anonymity.

✅ What to look for:

  • “About Us” page with real names, photos, LinkedIn links
  • Author bios on guest posts (with real profiles)
  • WHOIS lookup shows real owner (use who.is)

❌ Red Flag:

  • “Admin” or “Editor” as author — no real identity
  • No “About” page — or it’s vague (“We are a team of experts”)
  • WHOIS is private or shows a PBN network

👉 See how real publishers get verified — including WHOIS + Analytics checks.


Red Flag #2: High Spam Score (Moz) or Toxic Backlinks

Moz’s Spam Score predicts how likely a site is to be penalized by Google.

✅ Safe: Spam Score < 5 ⚠️ Risky: 5–30 ❌ Dangerous: 30+

Use Moz’s free toolbar or Site Explorer to check.

Also check Ahrefs for “Toxic Backlinks” — if >15%, avoid.

“Sites with Spam Score > 30 are 8.7x more likely to trigger manual penalties.” — Moz Spam Score Methodology

👉 What is Spam Score? (And Safe Thresholds for 2025)


Red Flag #3: Irrelevant Niche or Content Mix

Google prioritizes topical relevance. A site covering “Crypto, Travel, Recipes, and SEO” has zero authority in any.

✅ What to look for:

  • Clear niche focus (e.g., “SaaS Marketing,” “Health Tech,” “Crypto Regulation”)
  • Content depth — not surface-level listicles
  • Internal linking between related topics

❌ Red Flag:

  • “General blog” with no focus
  • Posts written for SEO, not readers
  • Random affiliate links (casino, CBD, loans)

👉 Why Niche Relevance > DA for Guest Posting


Red Flag #4: No Recent Posts or Comments

Abandoned sites = dead links = wasted effort.

✅ Check:

  • Last post published: within 60 days
  • Comments section: active, real discussions
  • Social shares: recent, real engagement

❌ Red Flag:

  • Last post: “December 2023”
  • Comments: “Nice post!” (clearly fake)
  • No social presence — or all posts auto-shared

Red Flag #5: Hidden or Generic Contact Info

If you can’t find a real person — don’t pitch.

✅ What to look for:

  • “Contact” page with editor’s name/email
  • LinkedIn profile linked
  • Response time: < 7 days (check site’s “Guest Post” page for testimonials)

❌ Red Flag:

  • “info@” or “contact@” only
  • No response after 14 days (check Reddit or Twitter for complaints)
  • Contact form with no human reply

👉 Why Direct Messaging Beats “info@” Emails


Red Flag #6: “DA 80+ for $10” — Too Good to Be True

If it sounds too good to be true — it is.

✅ Realistic pricing:

  • DA 40–50: $80–$200
  • DA 50–60: $200–$500
  • DA 60+: $500+

❌ Red Flag:

  • “DA 80 for $10” — always fake DA
  • “Unlimited links” or “dofollow guaranteed”
  • No invoice or contract — only PayPal or crypto

👉 See Transparent Pricing Models for Guest Posts


Red Flag #7: No Editorial or Guest Post Guidelines

Professional sites have rules. Spammy sites don’t care.

✅ Look for:

  • “Write for Us” or “Guest Post Guidelines” page
  • Clear rules: word count, links, tone, formatting
  • Examples of published guest posts

❌ Red Flag:

  • “Just send your article!” — no guidelines
  • Guidelines copied from another site (check for plagiarism)
  • No examples of past guest posts

Quick 5-Point Verification Checklist

Before you pitch, ask:

  1. ✅ Is there a real “About Us” page with owner info? (WHOIS check)
  2. ✅ Is Spam Score < 5? (Moz) + Toxic Backlinks < 15%? (Ahrefs)
  3. ✅ Is the niche relevant to my audience? (No “general blog” traps)
  4. ✅ Are there recent posts + real comments? (Last 60 days)
  5. ✅ Is there a real contact person — not just “info@”?

🖨️ Pro Tip: Print this checklist — keep it next to your desk.


Fake Site vs Verified Site (Comparison Table)

Factor Fake/Spammy Site Verified Site
Ownership Private WHOIS, no “About” page Real owner, LinkedIn, bio
Spam Score > 30 (High Risk) < 5 (Safe)
Niche “Everything” — no focus Clear, deep niche focus
Content AI-spun, affiliate-heavy Original, edited, helpful
Contact “info@” — no reply Editor email + response time

FAQ

What is the fastest way to check if a guest post site is spammy?

Use Moz’s free toolbar to check Spam Score. If it’s > 5, dig deeper. If > 30, avoid.

Can a site with high DA still be spammy?

Yes — DA can be manipulated with PBNs or bought links. Always check Spam Score + niche relevance.

How do I report a fake guest post site?

Report it to Google Search Console (if you own a site linked from it) — or warn others on Reddit, Twitter, or niche forums.

Is it safe to publish on a site with nofollow links?

Yes — if the site is authoritative and relevant. Nofollow links still drive traffic and brand value.

What’s the #1 red flag I should never ignore?

No real owner or “About” page. If you can’t verify who runs the site, don’t publish on it.

Can I use AI to check for fake sites?

Partially. AI can help analyze content quality — but always verify ownership, Spam Score, and traffic manually.


Published by GuestPostOn — the verified guest post marketplace that connects you with real site owners. Every site is verified for ownership, metrics, and niche relevance. [Disclosure: GuestPostOn is our platform. We built it to solve the problems described in this article.]

Explore over 98,000 guest post opportunities across 59 niches on GuestPostOn.

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GuestPostOn Editorial Team

Practical guides on guest posting, link building, and publisher outreach — written by the team that runs the GuestPostOn marketplace and grounded in verified data from thousands of real listings: pricing, domain metrics, and publisher behavior.