Check your domain's link authority
Backlink analysis asks who links to your site. AuditLamp's site audit shows a 0 to 100 prominence score from the Common Crawl graph when a domain observation is available, plus linking-domain counts when reported. For individual links to your own site, Google's free Links report "shows a sample of internal and external links". Both sources have coverage limits.
This form opens the site audit. Its authority section reports domain-level observations, not a list of individual backlinks or competitor link opportunities. If the graph has no observation for your domain, its authority is unknown.
Free category scores and selected findings. Full findings and export files: $10 once.
Free Visibility Scan: whole site, up to 150 pages, no email. Full Report is a one-time $10.
Domain authority
Where a domain appears in a particular public link graph.
Score, release and linking-domain count when observed.
Available in the AuditLamp site audit.Individual backlinks
Which pages link to you, what they say and whether they are relevant.
Source URLs and the pages they point to.
Research in Search Console or a backlink database.A trust signal, with the formula on the table.
A backlink is a link from a page on another site to a page on yours. For an owner, the useful questions are which pages earn those links, whether the sources are relevant to your business, and whether visitors arriving through them can find what they need. A domain-level score is a starting point for that review, not its conclusion.
Authority scores depend on each tool's data and formula, so they are not interchangeable. We use our own web-graph index built from the public Common Crawl dataset and show the formula: authority = 100 * (1 - ln(harmonic_pos) / ln(N)). It is a prominence measure, not a ranking prediction.
If your authority is low, the fix is earning citations and links from relevant sites, not tweaking a number. Fixing low external citations covers the honest playbook.
What we measure, and what we do not.
Link-graph authority score
When the graph returns a domain record, we report its position as a prominence score. The report names the graph release and explains the formula. This is a measure of position in that snapshot, not a prediction of search rankings.
Referring-domain count
When available, this is the number of distinct domains pointing to yours in the graph release. One referring domain with 100 links counts once. The count covers domains observed in that dataset, not every link on the web. A missing domain or unavailable count does not mean you have no backlinks.
Individual backlinks and referring pages
The audit view does not list individual linking pages, anchor text or new and lost links. For those tasks, inspect your own links in Search Console or use a backlink research database. Check the source page directly before deciding what a link means.
What we do not do
We are not a full backlink database. We do not store every individual link to every page on the web. Tools like Ahrefs and Semrush maintain crawled link inventories at a scale we do not match. Our data is domain-level, derived from the public Common Crawl graph, and good for understanding your general authority position, not for per-page link prospecting or anchor-text analysis at depth. Google Search Console's Links report is another useful source for your own site, but Google explicitly describes it as a sample.
Available authority observations appear in the site audit next to the on-page findings that you can actually fix this week, or run a full technical audit first to see the complete picture before building links. The umbrella view is the AI search optimization hub.
The pipeline, in the open.
Our web-graph index is built from the Common Crawl domain-level graph. Each domain's authority comes from its harmonic-centrality position in that graph, converted to a 0 to 100 score with the disclosed formula: authority = 100 * (1 - ln(harmonic_pos) / ln(N)), where N is the number of ranked domains. Referring-domain counts are computed from the same graph: the number of distinct domains with at least one link to yours, so one domain linking 100 times still counts once.
A successful lookup names the observed domain and graph release. When a domain is not observed under the checked domain keys, its score and referring-domain count remain unknown for that release. If the index is unavailable, that is a missing measurement. Neither result establishes that the business has no links or lacks credibility.
The graph is a snapshot, not a live feed. A newly earned link may not appear in the release being read. When comparing reports, record the source and release first: a changed dataset can change the number without any work on your site. Judge link work using the relevant referring pages and customer outcomes alongside the score.
Straight answers.
How is this different from Ahrefs or Semrush?
Those tools offer backlink research with individual linking pages and anchor text. AuditLamp's audit shows domain-level observations from the Common Crawl graph when available. Use a backlink database for link prospecting or competitor link comparisons, and the site audit for readiness checks and available authority context.
What is Common Crawl?
A public web-crawl dataset. We build the authority index from its domain-level link graph. The report identifies the graph release when available; its observations are a snapshot, not a live or complete record of the web.
Why does my authority score differ from my Moz DA or Ahrefs DR?
Each score depends on the source index and calculation. AuditLamp discloses its formula. Compare reports from the same source and record their graph releases; scores from different tools are not equivalent, and a release change can move a score without a change to your site.
Can you tell me which links to build?
No. This scan does not generate link prospects or competitor backlink gaps. Review relevant publications, partners and resources for your business, and use link research to check individual sources. The audit helps you inspect the pages those visitors would reach.
Does a higher score guarantee better rankings?
No. The score measures prominence in a particular graph, not ranking or revenue. The $10 Full Report includes full audit findings and export files; purchasing it does not make missing graph observations available.
Check your site and its available link evidence.
Run the site audit, then review available observations in its SEO authority section. An unknown result means the source could not establish a number for your domain.
Free category scores and selected findings. Full findings and export files: $10 once.
Domain-level observations · source release shown when available