We run one narrow product: backlink data over our own crawler and our own index, sold by the call. This page says what that means and what it does not.
ASEOTools editorial team ·
What we built
ASEOTools is a developer REST API and a free online explorer, the link layer of an SEO tool center. It returns JSON for backlinks, referring domains, anchor text, top pages and a 0 to 100 Domain Rating.
The data comes from our own web link graph: 181,132,097 domains, 2,774,625,913 domain-to-domain links and about 798.5 billion backlinks indexed. It is refreshed roughly once a month, which means a link from last week may not show up yet.
Editorial pages on this site are written by the ASEOTools editorial team. We do not publish named experts or customer stories, because we have none to show.
We say what is missing too. There are no keyword volumes, no rank tracking and no page-level crawl audits here. For those jobs, buy a suite and keep this API for the link layer that scripts and sheets consume.
How we think about the product
A layer, not a suite
We do one thing, link data, and price it per call. Keywords, rank tracking and a daily-fresh crawl are better served by Ahrefs or Semrush.
Prices you can calculate
One credit is $0.0001. Calls cost 1, 2 or 3 credits, billed once whatever the row count, so you can cost a job before running it.
Free where it should be
The domain, overview, stats and suggest actions need no key. A new account gets $100 in credit with no card.
Said out loud
The DR formula is public, and the monthly refresh is stated on every page that matters. Read the cost table for the numbers.
What exists today, in plain facts
Own crawler, own link graph
181,132,097 domains and 2,774,625,913 domain-to-domain links, indexed from our own crawl.
Roughly monthly
Data is rebuilt about once a month. We do not claim a daily-fresh crawl.
Prepaid credit
1 credit is $0.0001, from $0.10 per 1,000 calls, with $100 free on sign-up.
Google sign-in, USDT top-ups
There is no subscription and no monthly minimum.
Who it is for and how to start
Teams that run link pulls on a schedule. Agencies, in-house SEOs and small SaaS groups fit best, and so does any group that is tired of paying for seats nobody opens.
Start small. Begin with the free checker on the home page, then read the stack audit runbook, and later add the monthly job. Sign-in uses a Google account, and top-ups use USDT on TRC-20 from the account page. For questions or account matters, use the account page.
How to judge us
Test, do not trust. The free actions cost nothing and need no key.
Run ten domains you know well through the checker, compare the rank order with the tool you use today, and look at whether the referring-domain counts feel plausible for sites you have worked on. If they do, a paid call at 2 credits is a cheap next step. If they do not, you lost five minutes.
We would rather you leave with a clear no than a confused yes. The swap mistakes page lists what to watch while you compare, and the Semrush decision tree shows which tasks are worth moving at all.