Checking backlink indexation

The problem

A backlink lives on someone else's page. Whether that page is in Google's index decides whether the link has a realistic chance of being counted. Site owners checking their own pages have Search Console; link builders checking a guest post, directory listing or press pickup do not. Checking backlink indexation is therefore the outside-in version of index checking, using only what Google shows publicly.

Step 1: confirm the link exists

Before checking indexation, confirm the source page still carries the link. Links get removed, edited into plain text or moved behind a login. Fetch the page and look for an anchor pointing at your URL, and note its rel value. Checking the index status of a page that no longer links to you is wasted effort. Ongoing presence checks are the job of a backlink monitor.

Step 2: confirm the page can be indexed

A page that cannot be indexed will always check as missing. Three things to inspect on the source page:

• robots.txt: if the path is disallowed for Googlebot, Google generally cannot crawl it. Google's robots.txt documentation notes that a blocked URL can still be indexed without its content if linked elsewhere, but such entries rarely help a backlink.
• noindex: a noindex meta tag or X-Robots-Tag header tells Google not to index the page.
• canonical: if the page declares another URL as canonical, Google may index that URL instead.

noindex and robots checks covers each of these in detail. Pages that fail here are not candidates for resubmission; the fix, if any, is with the site owner.

Step 3: query Google

For a handful of links, manual queries work. Search the exact source URL, then try it in quotes, then with the site: operator, then inurl:. The full procedure, including how to read each result, is in how to check if a URL is indexed. A match on the exact URL is the strongest evidence; a match on a different URL from the same site is not.

Manual checking stops scaling at a few dozen URLs. Search engines throttle repeated operator queries, and copying results by hand introduces errors. Link builders with hundreds or thousands of placements use a checker that runs the same queries in batches; bulk index checking describes how that works and how to structure the input list.

Step 4: record and segment the results

A useful backlink indexation record holds, per source URL: the check date, the status, the query form that matched, and the link's source (vendor, campaign, link type). Segmenting results by source tells you more than the overall rate. If one vendor's placements are rarely indexed while another's mostly are, that is a quality signal about the placements, not about the checker.

Step 5: act on the misses

Missing source pages fall into three groups. Pages blocked from indexing need the site owner. Pages too new to judge need another check after a few days (re-check timing explains the intervals). Pages that are crawlable, indexable and still missing after a reasonable wait are the candidates for a backlink indexer, followed by another check. The full loop is laid out in from check to resubmission, and interpreting not-indexed results helps sort misses into these groups.

Tooling note

The IndexChex index checker was built for this use: it checks source pages on sites you do not own, in batches of up to 10,000 URLs at 1 credit per URL, and lets not-indexed URLs be sent to a submission job from the results. Any checker that queries Google directly can follow the same method; what matters is checking the source page, checking it more than once, and recording the results so patterns show.