Compare

Ahrefs vs Sistrix

Ahrefs scores higher on the AgentReady, 83/100 against 38/100. They differ on 17 of the 41 signals. Which ones decides whether an agent can adopt them without a person watching.

What each one is

Ahrefs. Ahrefs is an AI marketing platform built on a proprietary index of the web that provides tools and data to grow brand traffic, visibility, and revenue in search, AI, and beyond.

Sistrix. SISTRIX is an SEO software company that provides tools for better Google rankings, visibility in AI answers, and success in the Amazon Marketplace.

Where Ahrefs is ahead

Ahrefs passes clear product positioning, public docs discoverable and llms.txt published, and Sistrix does not. That is discover, whether an agent can find the product at all without being told it exists.

It also holds understand: structured api reference, openapi / spec quality, request examples provided, response examples provided, errors and status codes documented and limits / constraints documented. Sistrix misses those.

And on adopt, self-service signup, no mandatory sales call, agent-compatible signup flow, programmatic credential creation and official python sdk. Sistrix misses those.

Finally, on operate, structured, predictable output and machine-readable errors. Sistrix misses those.

Where Sistrix is ahead

Sistrix passes copyable quickstart, and Ahrefs does not. That is adopt, whether an agent can get a key and make its first successful call without a human in the loop.

What neither does

Both fail llms-full.txt / full agent docs, authentication documented, fast time to first request, cli available, retry behavior documented, idempotency support, rate-limit behavior predictable, agent compatibility verified. If your agent needs any of those, you will be building it yourself either way.

Score, pillar by pillar

The AgentReady splits into four pillars, scored separately, because a product can be easy to find and still impossible to adopt.

Discover. Ahrefs leads 93 to 60. Ahrefs misses llms-full.txt / full agent docs; Sistrix misses clear product positioning, public docs discoverable, llms.txt published, llms-full.txt / full agent docs.

Understand is whether an agent can read the docs and work out how the API behaves before calling it. Ahrefs leads 92 to 23. Ahrefs misses authentication documented; Sistrix misses structured api reference, openapi / spec quality, authentication documented, request examples provided, response examples provided, errors and status codes documented, limits / constraints documented.

Adopt. Ahrefs leads 85 to 35. Ahrefs misses fast time to first request, copyable quickstart, cli available; Sistrix misses self-service signup, no mandatory sales call, agent-compatible signup flow, programmatic credential creation, fast time to first request, official python sdk, cli available.

Operate. Ahrefs leads 61 to 35. Ahrefs misses retry behavior documented, idempotency support, rate-limit behavior predictable, agent compatibility verified; Sistrix misses structured, predictable output, machine-readable errors, retry behavior documented, idempotency support, rate-limit behavior predictable, agent compatibility verified.

Pricing

Ahrefs does not publish a machine-readable starting price and has a free tier. Sistrix does not publish one with no free tier.

Signal by signal

Which to pick

Ahrefs clears more of the signals an agent needs, so it is the safer default for unattended use. Full profiles: Ahrefs and Sistrix. Alternatives to each: Ahrefs, Sistrix.

An agent can fetch this as data: POST /v1/compare {"slugs": ["ahrefs", "sistrix"]}