# www.rankgrow.io — SEO — 1 of 5

Home > Browse > By type > business > www.rankgrow.io

> Probe-verified (tier 2 of 3). Last checked 2026-09-26. 1 of 5 capability checks passed. 2 unknown.

- host: www.rankgrow.io
- url: https://www.rankgrow.io/
- category: SEO
- type: business
- language: en

## Probe-verified · tier 2 of 3

Probed live on 2026-09-26 against rubric v1.2. 1 of 5 checks passed. 2 unknown.

- UNKNOWN — Markdown negotiation (`Accept: text/markdown`)
- UNKNOWN — Markdown twin at a predictable URL (`/page.md`)
- PASS — llms.txt (`/llms.txt`)
- FAIL — API catalog (`RFC 9727`)
- FAIL — MCP endpoint answers tools/list (`initialize → tools/list, no credentials`)
  - PRESENT — MCP server card (`/.well-known/mcp/server-card.json`): present; could not ask whether its server answers; not scored
  - Platform-supplied: not applicable — no MCP endpoint answered; not scored
- FAIL — Other agent files at well-known paths (`agent-skills/index.json · oauth-authorization-server · oauth-protected-resource · http-message-signatures-directory`): none found; not scored

## Summary

RankGrow provides AI-powered SEO tools and agents that connect to Google Search Console to audit technical, content, competitor, and AI visibility issues, generating prioritized task backlogs for SEO improvements via an MCP server with OAuth authentication.

## Context

63 sites in this index share the category "SEO"; 24 are transactional.

## How we grade

- tier 1 — **Declared**: The site says agents are welcome in its robots.txt. A permission, not a capability.
- tier 2 — **Probe-verified** (this site): We fetched the site and tested each signal ourselves. Dated, repeatable, re-checked on a schedule.
- tier 3 — **Behaviourally verified**: An agent completed the action end to end — booked, bought, submitted — and it worked.

## About this record

Known Good probes sites live and publishes what was tested and when.
Method: https://knowngood.sh/about.md · Rubric: https://knowngood.sh/benchmark

How we found this site: probe discovery. This site didn't declare agent access — we found it by checking the open web. Everything above was tested the same way, against the same rubric, on the date shown. [How we choose what to check, and how to opt out](https://knowngood.sh/bot)

## Where this sits

- business: https://knowngood.sh/type/business
- SEO: https://knowngood.sh/category/seo
- Browse: https://knowngood.sh/browse
- Rubric: https://knowngood.sh/benchmark