AxioAPI

Backlink checker

Enter a domain to see a summary of its backlinks from the data sources we query. Counts are estimates.

Enter the hostname without https://.

Free to try without an account, up to 10 runs per day. Results come from the same API you can call from code.

How to use it

  1. 1

    Enter a domain

    Type a hostname such as example.com.

  2. 2

    Run the check

    Press the button to query the data sources.

  3. 3

    Compare the sources

    The result lists each source with its own numbers, and the sources that did not answer.

What is a backlink checker?

Backlinks are links from other websites to yours. Search engines use them as one signal of how trusted and relevant a site is, so SEO teams track them to compare sites and find link opportunities.

No single public source sees every link. The numbers here are estimates from third-party data sources and can differ between them, so compare trends rather than exact counts.

Build backlink and domain reports with the API

Combine the backlink summary with the domain overview, history and on-page audit in your own SEO tools. The API costs 2 credit (about $0.002) per request.

Frequently asked questions

How accurate are the numbers?

They are estimates from third-party sources and can differ between sources. Use them to compare, not as exact counts.

Why does a new site show zero?

New or small sites often have no links in the data sources yet. A zero means no data was found there.

Does it list the linking pages?

No. The tool returns a summary with counts, not a full list of linking pages.

Can I check my competitors?

Yes. Any public domain can be checked. Use the SEO API to automate the comparison.

More free tools: BIN checker · Email validator · Facebook UID finder · YouTube transcript extractor