Backlink signal checker. Verify, don't discover.
Paste candidate URLs (one per line, max 10) + your domain. We fetch each URL via AllOrigins and verify the backlink is actually present, capturing anchor text + rel attributes + dofollow / nofollow status. Verifier, not discoverer.
Paste candidate URLs (one per line, max 10) + your domain. We fetch each URL via AllOrigins proxy, parse the HTML, and verify whether the link to your domain is actually present — with anchor text + rel attribute + dofollow/nofollow status.
Sources used
- AllOrigins — public CORS proxy used to fetch candidate URLs cross-origin
- Bing Webmaster Tools — free backlink data for verified domains (best free starter list)
- Google Search Console — Links report — Google-tracked backlinks for verified domains
- Ahrefs Webmaster Tools — free for verified domain owners (full backlink list for your site)
- Moz Link Explorer — paid for full data; free top-10 sample
- Google Search Central — qualify outbound links — nofollow / sponsored / ugc spec
URLs are sent to AllOrigins for the fetch. Digital Heroes does not log queries.
Privacy: queries go to AllOrigins only. Digital Heroes does not log.
Backlink discovery is paywalled.
Backlink discovery — knowing every site that links to yours — requires a continuously-updated crawl of the entire public web. Ahrefs, Moz, Semrush, and Majestic each spend $10M+/year operating their crawls. No client-side free tool can replicate that. What free tools CAN do: take a list of candidate backlinks (from your CRM, paid-placement contracts, outreach tracker, GSC, or Bing Webmaster Tools) and verify each one actually exists with the right anchor + rel attributes. The verifier above does that — useful for backlink hygiene, paid-placement audit, and outreach quality control.
Five high-impact uses for backlink verification. Audit paid placements — confirm every contracted backlink shipped + is still live. Confirm journalist coverage — verify pitched stories actually link back. Cleanup nofollow leakage — find which "dofollow" promised links are actually nofollow. Detect link removal — track which valuable backlinks have been removed by outlets over time. Outreach quality control — confirm guest posts you wrote actually link back per your contributor agreement.
Tools in the same cluster: Anchor Text Analyzer for anchor-quality view. External Link Counter for the outbound-link audit. Domain Authority Checker for the composite site-maturity score (also honest about NOT being Moz DA).
Five answers.
Why a verifier instead of a discoverer?
Backlink discovery requires a continuously-updated crawl of the entire public web — that's what Ahrefs, Moz, Semrush, and Majestic spend $10M+/year doing. No client-side tool can replicate that. What client-side tools CAN do: take a list of candidate backlinks (from your CRM, paid-placement contracts, journalist outreach tracker, or competitor analysis) and verify each one actually exists. Verifier mode is the honest free alternative — useful for backlink hygiene + paid-placement audit + outreach quality control.
Where do I get the candidate URLs to verify?
Five common sources. One, paid placement contracts — verify every paid backlink actually shipped + still exists. Two, PR + outreach trackers — verify journalist-pitch coverage actually links back. Three, Google Search Console (linked sites report) — verify Google-tracked backlinks are still live. Four, Bing Webmaster Tools (links report) — free alternative to GSC. Five, free Moz Link Explorer (limited free tier) for a starter list to verify against. The verifier handles up to 10 URLs per batch.
What does the verifier check on each URL?
Five signals per candidate URL. One, fetch success — does the page load (404 = link is broken from the start). Two, link presence — does the page actually contain an <a> tag pointing to your domain. Three, dofollow vs nofollow — checks rel attribute (nofollow / sponsored / ugc dampens link equity). Four, anchor text — what text the link uses (helps with anchor-text variation strategy). Five, link context — first 80 chars around the link to gauge editorial vs comment placement.
How do I get the actual Ahrefs / Moz / Semrush backlink data?
All three are paid services with limited free tiers. Ahrefs Webmaster Tools (free for verified domain owners) shows full backlink list for your own site. Moz Link Explorer free tier shows top 10 backlinks. Semrush free trial shows the first 100. For continuous monitoring, paid plans range $99-449/month. Bing Webmaster Tools (free for any verified site) is the most generous free option for raw backlink data — combine it with this verifier to confirm each backlink is still live.
Does this tool save my data?
URLs are sent to AllOrigins (a public CORS proxy) for the fetch. Nothing is logged on Digital Heroes servers. AllOrigins handles the data per their terms. The verification result lives in your browser only.
Backlink program leaking value?
Our SEO engagements ship a 90-day editorial-link program: outreach to Tier-1 publications, paid-placement audit, anchor-text variation strategy, and quarterly link-removal monitoring.
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