io.github.theluckystrike/backlink-checker

io.github.theluckystrike/backlink-checkertheluckystrikestreamable-httpv0.22.6Scanned 22 hours ago

Does a page link to your domain? Dofollow/nofollow, anchor, status, robots guards. Live, no store.

8 tools: 4 change things and 4 only read.

Reads private data · 0
Reads text others write · 7
Can send data out · 1
2 findings

Tools listed without sign-in. Remote posture

Anlyon alternative

4 of these tools change something. Run those as governed actions.

Declare what an action changes, and Anlyon puts it under a shared limit, binds every approval to the exact request, and grades the outcome. It works on any HTTPS API you can describe as an action.

Anlyon does not run, proxy or govern this MCP server. A tool your own code calls directly is not routed through Anlyon and is not governed by it.

Import an OpenAPI spec →

Tools

Grouped by what each tool does, most consequential first. Open one for its reasons and full description; descriptions are the publisher's own words.

8 tools

Changes things 4Creates or changes something that can be changed back.Claude Code: ask

license_activateTurn Pro on for this connection with key, an MCPL1.<payload>.<signature> issued at checkout for this server or the bundle.No findings
Why it is in this group
- Nothing in its name or description says what it does, so it is counted as a write.
Description, as the server wrote it
Turn Pro on for this connection with key, an MCPL1.<payload>.<signature> issued at checkout for this server or the bundle. Data under your token stays; a wrong or expired key changes nothing. license_status confirms it.
Annotations the server declares
- readOnlyHint: false
- destructiveHint: false
- idempotentHint: false
- openWorldHint: false
link_auditCheck up to N referring pages against one target domain and return a per-URL table: HTTP status, dofollow/nofollow, anchor text, robots guards.Reads text others write1 finding
Why it is in this group
- The name "link_audit" says "link": a word for a change.
- The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
What it can reach
- untrusted-inputThe server marks it openWorldHint: true: it reaches things outside the server's own data.
Findings
- Warn
  The server marks "link_audit" read-only (readOnlyHint: true), and its own name, description or input give the class "write".
  Matched text
  annotations: {"readOnlyHint":true,"destructiveHint":false,"idempotentHint":true,"openWorldHint":true}; The name "link_audit" says "link": a word for a change.
  What this check looks for
Description, as the server wrote it
Check up to N referring pages against one target domain and return a per-URL table: HTTP status, dofollow/nofollow, anchor text, robots guards. Free tier: 3 URLs per call.
Annotations the server declares
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: true
link_checkFetch a referring page and report whether it links to the target domain, whether that link is dofollow or nofollow, the anchor text, HTTP status and robots guards (meta robots / X-…Reads text others write1 finding
Why it is in this group
- The name "link_check" says "link": a word for a change.
- The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
What it can reach
- untrusted-inputThe server marks it openWorldHint: true: it reaches things outside the server's own data.
Findings
- Warn
  The server marks "link_check" read-only (readOnlyHint: true), and its own name, description or input give the class "write".
  Matched text
  annotations: {"readOnlyHint":true,"destructiveHint":false,"idempotentHint":true,"openWorldHint":true}; The name "link_check" says "link": a word for a change.
  What this check looks for
Description, as the server wrote it
Fetch a referring page and report whether it links to the target domain, whether that link is dofollow or nofollow, the anchor text, HTTP status and robots guards (meta robots / X-Robots-Tag noindex, nofollow).
Annotations the server declares
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: true
outreach_queueBatch link check for outreach follow-ups: pass up to 10 page URLs and your domain, get one line per page (status, linked or not, dofollow).Reads text others writeNo findings
Why it is in this group
- Nothing in its name or description says what it does, so it is counted as a write.
- The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
What it can reach
- untrusted-inputThe server marks it openWorldHint: true: it reaches things outside the server's own data.
Description, as the server wrote it
Batch link check for outreach follow-ups: pass up to 10 page URLs and your domain, get one line per page (status, linked or not, dofollow). Built for the Monday-morning question: which of the sites that promised a link actually shipped it?
Annotations the server declares
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: true

Only reads 4Looks things up and changes nothing.Show 4 read-only tools

anchor_profileFetch one referring page and list every outbound link with its anchor text and dofollow/nofollow classification, so you can see how a site links out before requesting a link change…Reads text others writeNo findings
Why it is in this group
- The description's first verb is "fetch": a word for reading.
What it can reach
- untrusted-inputThe server marks it openWorldHint: true: it reaches things outside the server's own data.
Description, as the server wrote it
Fetch one referring page and list every outbound link with its anchor text and dofollow/nofollow classification, so you can see how a site links out before requesting a link change.
Annotations the server declares
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: true
license_statusReport this endpoint's licence state for your token as JSON: the product, the tier free or pro, why it is not Pro, and the checkout URL.Reads text others writeNo findings
Why it is in this group
- The name "license_status" says "status": a word for reading.
What it can reach
- untrusted-inputThe description's first sentence says "url": it reads web pages, which anyone can write.
Description, as the server wrote it
Report this endpoint's licence state for your token as JSON: the product, the tier free or pro, why it is not Pro, and the checkout URL. Call it to explain a free-tier refusal. No arguments, nothing changes.
Annotations the server declares
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: false
referring_domain_summaryFetch a page and summarize the referring domain: HTTP status, indexability, outbound link count, and whether the target domain appears anywhere in the text (brand mention without a…Reads text others writeNo findings
Why it is in this group
- The description's first verb is "fetch": a word for reading.
What it can reach
- untrusted-inputThe server marks it openWorldHint: true: it reaches things outside the server's own data.
- untrusted-inputThe description's first sentence says "fetch" and "http": it reads web pages, which anyone can write.
Description, as the server wrote it
Fetch a page and summarize the referring domain: HTTP status, indexability, outbound link count, and whether the target domain appears anywhere in the text (brand mention without a link).
Annotations the server declares
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: true
robots_guard_checkFetch one URL and report HTTP status plus meta robots / X-Robots-Tag noindex and nofollow signals, without extracting links.Reads text others writeCan send data outNo findings
Why it is in this group
- The description's first verb is "fetch": a word for reading.
What it can reach
- untrusted-inputThe server marks it openWorldHint: true: it reaches things outside the server's own data.
- untrusted-inputThe description's first sentence says "fetch" and "url": it reads web pages, which anyone can write.
- untrusted-inputThe input takes a URL (input.url), and the tool reads it: it reads web pages, which anyone can write.
- outboundThe input takes a URL (input.url): a request to a URL can carry data to whoever runs it.
Claude Code: ask, because it is tagged outbound.
Description, as the server wrote it
Fetch one URL and report HTTP status plus meta robots / X-Robots-Tag noindex and nofollow signals, without extracting links.
Annotations the server declares
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: true

This is not a safety rating, and no finding is not a safety guarantee. The groups and findings come from fixed checks of the tool definitions the server returned on the date shown, not from its code or what it does when called. How the checks work.

Exfil surface

Which tools read private data, which read text someone else can write, and which can send data out. One of each is a path a prompt injection can use.

No private-data, untrusted-input, outbound path in this server alone: no tool is tagged private-data.

Reads private data0: Reads files, mail, messages, databases, secrets, calendars or repositories.
Reads text others write7: Brings in text someone else can write: web pages, inbound email, messages, issues and comments.; anchor_profile
license_status
link_audit
link_check
outreach_queue
referring_domain_summary
robots_guard_check
Can send data out1: Can carry data to people or systems: it sends, posts or publishes, or takes a recipient, channel or URL.; robots_guard_check

Other servers in the same agent add their own tools to these paths. Audit your whole setup to see them together.

Remote posture

What anyone on the internet sees at the remote endpoint: an anonymous initialize and tools/list, and the public OAuth metadata.

Tools listed without sign-in

Looked at Oct 22, 2026, 15:19 UTC, unchanged since Oct 22, 2026. No credentials were sent and no tool was called. What is looked at.

Reachable: yes
HTTP status of an anonymous initialize: 200
tools/list served without credentials: yes
Tools that change things, listed without credentials: 4
Protocol version: 2025-06-18
WWW-Authenticate on 401: not observed
resource_metadata in WWW-Authenticate: not observed
RFC 9728 protected resource metadata: https://mcp.zovo.one/.well-known/oauth-protected-resource
Authorization servers: https://mcp.zovo.one
Legacy HTTP+SSE transport: no
Dynamic client registration: yes
Client ID metadata documents: no

WarnThe whole server
The endpoint served tools/list without credentials, and the list has 4 tools that change things (4 write). Whether a call also works without credentials was not tested: tools are never called.
Matched text
https://mcp.zovo.one/mcp/backlink-checker: tools/list returned 8 tools to an anonymous client, including link_check (write), link_audit (write), outreach_queue (write), license_activate (write)
What this check looks for

Findings

Matches of fixed checks, with the text they matched.

2 warn

Warnlink_check
The server marks "link_check" read-only (readOnlyHint: true), and its own name, description or input give the class "write".
Matched text
annotations: {"readOnlyHint":true,"destructiveHint":false,"idempotentHint":true,"openWorldHint":true}; The name "link_check" says "link": a word for a change.
What this check looks for
Warnlink_audit
The server marks "link_audit" read-only (readOnlyHint: true), and its own name, description or input give the class "write".
Matched text
annotations: {"readOnlyHint":true,"destructiveHint":false,"idempotentHint":true,"openWorldHint":true}; The name "link_audit" says "link": a word for a change.
What this check looks for

History

Changes to its tool definitions and to its remote endpoint, newest first.

No change seen yet. Its tools are rescanned every day, and a remote endpoint is looked at once a week.

All changes to this server

Install

Pinned to version 0.22.6. Values in angle brackets are yours to fill in.

claude mcp add --transport http backlink-checker https://mcp.zovo.one/mcp/backlink-checker --header 'Authorization: <your-authorization>'

claude mcp add --transport http backlink-checker https://mcp.zovo.one/mcp/backlink-checker --header 'Authorization: <your-authorization>'

Run in a terminal.

Claude Code permissions

Allow the reads, ask before a change or a way out, deny the deletes. Paste into .claude/settings.json.

.claude/settings.json

{
  "permissions": {
    "allow": [
      "mcp__backlink-checker__anchor_profile",
      "mcp__backlink-checker__referring_domain_summary",
      "mcp__backlink-checker__license_status"
    ],
    "ask": [
      "mcp__backlink-checker__link_check",
      "mcp__backlink-checker__link_audit",
      "mcp__backlink-checker__outreach_queue",
      "mcp__backlink-checker__robots_guard_check",
      "mcp__backlink-checker__license_activate"
    ],
    "deny": []
  }
}

Tools that only read are allowed, tools that change things ask first, tools that delete or cancel are denied. A read that can send data out (it takes a URL, say) asks first too. It assumes the server is installed as backlink-checker. Review it before you use it.

Capability tags behind 7 rules

mcp__backlink-checker__link_check untrusted-input
mcp__backlink-checker__link_audit untrusted-input
mcp__backlink-checker__anchor_profile untrusted-input
mcp__backlink-checker__referring_domain_summary untrusted-input
mcp__backlink-checker__outreach_queue untrusted-input
mcp__backlink-checker__robots_guard_check untrusted-input, outbound
mcp__backlink-checker__license_status untrusted-input

Keep the decision: fail CI when the tools change, follow every change, or show a badge.

Pin in CI

Fail a build when the tools you reviewed are not the tools the server serves today.

curl -s "https://anlyon.dev/api/v1/servers/io.github.theluckystrike/backlink-checker/verify?hash=54eabfb513e028f51cbc52506d9c5b2cd950077134ca93a4e374e50896367d7b" | jq -e '.changed == false'

Pinned hash 54eabfb513e0, from Oct 21, 2026, 19:32 UTC.

Watch

Get told when its tools change: a new tool, a new description, a new class.

https://anlyon.dev/servers/io.github.theluckystrike/backlink-checker/changes.xml

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Badge

[![anlyon.dev](https://anlyon.dev/badge/io.github.theluckystrike/backlink-checker.svg)](https://anlyon.dev/servers/io.github.theluckystrike/backlink-checker)

Source: MCP Registry · repository. Synced Oct 21, 2026, 18:50 UTC.