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

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
- Red Flag #2: High Spam Score (Moz) or Toxic Backlinks
- Red Flag #3: Irrelevant Niche or Content Mix
- Red Flag #4: No Recent Posts or Comments
- Red Flag #5: Hidden or Generic Contact Info
- Red Flag #6: “DA 80+ for $10” — Too Good to Be True
- Red Flag #7: No Editorial or Guest Post Guidelines
- Quick 5-Point Verification Checklist
- Fake Site vs Verified Site (Comparison Table)
- FAQ
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:
- ✅ Is there a real “About Us” page with owner info? (WHOIS check)
- ✅ Is Spam Score < 5? (Moz) + Toxic Backlinks < 15%? (Ahrefs)
- ✅ Is the niche relevant to my audience? (No “general blog” traps)
- ✅ Are there recent posts + real comments? (Last 60 days)
- ✅ 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.]
Sarah Chen is an SEO strategist and founder of ContentAuthority Labs. With 12+ years in semantic SEO and expert backlink building, she has delivered 800+ sponsored and guest-posting projects that grew durable authority and demand for 200+ businesses. Her research on contextual consolidation merging overlapping pages to concentrate topical relevance has appeared in Search Engine Journal and other SEO publications. She speaks at industry events and mentors in-house teams and emerging SEOs.