Backlink Checker — what it does
Audits the backlink data you already own, in your browser, and tells you what a link auditor would say about it: how many referring domains you really have, how much of the profile passes value, whether the anchors look bought, which TLDs are risky, and whether one domain is quietly supplying a fifth of your links. It also diffs two exports so you can see exactly what was gained and lost between crawls.
How to use Backlink Checker
- Export your links: Google Search Console → Links → Top linking sites (or an Ahrefs / Semrush / Moz / Ubersuggest CSV).
- Paste the export. A header is detected automatically; if there is none, the URL column is guessed and the mapping used is printed under the report so you can verify it.
- Add your domain so the anchor analysis can separate brand anchors from exact-match ones.
- Paste an older export after a line containing only --- to also get new and lost linking sources.
- Work through the “what to fix” list, then use the disavow review list and the CSV export to hand the suspects to your SEO workflow.
Worked example: catching site-wide links early
A pasted export contains 40 links from 12 domains, 31 of them dofollow and 9 of them from one coupon site that also uses the exact-match anchor “best pdf editor”. The report scores the profile, flags that a single domain supplies 22% of the links and that one anchor covers 25% of them, and lists the .xyz and shortener links as disavow candidates — the exact three findings you would otherwise pay a tool subscription to be told.
At a glance
| Offline audit | Total links, unique referring domains, dofollow/nofollow/ugc/sponsored split, anchor distribution, TLD mix, site-wide detection, shorteners and redirect links |
|---|---|
| Input formats | CSV, TSV or semicolon-delimited; quoted fields and Google Search Console exports supported |
| Diff mode | Paste a second export after a line of --- to list gained and lost linking sources |
| Scoring | 0-100 profile score with a plain-language explanation for every deduction |
| Live mode | Optional free OpenPageRank API key for domain-authority lookups on up to 50 domains |
| Limits | It audits lists you bring — a browser cannot crawl the web's backlink index, and neither can we without a paid data source |
| Privacy | Parsing happens locally; in live mode the domains go only to OpenPageRank with your key |
Frequently asked questions
- What is Backlink Checker?
- Audit your backlink profile from an export you already own — Google Search Console, Ahrefs, Semrush, Moz or a spreadsheet. Parses the file in your browser and scores referring-domain diversity, dofollow split, anchor over-optimisation, risky TLDs and site-wide links, and diffs two exports to show new and lost links. Optional live domain-authority lookup with a free OpenPageRank key.
- Is Backlink Checker free to use?
- Yes — Backlink Checker is free to use, with no sign-up, no install and no account.
- Does Backlink Checker upload or store my data?
- No — Backlink Checker runs entirely in your browser, so your text, files and results never leave your device.
- Do I need to install anything to use Backlink Checker?
- No — it works in any modern browser (Chrome, Edge, Firefox, Safari) with no downloads, accounts or plugins.
- Can it find backlinks I do not know about?
- No, and no free browser tool can. Discovering links requires crawling the web or a commercial index (Ahrefs, Majestic, Moz). This tool's job is the part you can do for free and privately: turning the export you already have into a diagnosis.
- My export has odd columns. Will it still parse?
- It matches common header names — source, target, anchor, rel, DR/DA, date, links — and falls back to guessing the URL column if none are recognised. The detected mapping is printed with the report, so an incorrect guess is visible immediately rather than silently wrong.
- Is the score a Google metric?
- No. It is our own heuristic built from known profile-quality signals: anchor concentration, domain diversity, dofollow ratio, risky TLDs and site-wide patterns. It is for prioritising your work, not for predicting rankings.