RealMarket Site Check
REMOTE · TOOLS.REALMARKETLABS.COM
Passive checks of a public website: email authentication (SPF, DKIM, DMARC) and basic security.
Available components
Last scanned (4 hours ago)
Scores higher than 58% of remote servers
Reachable. Last reached 5 Nov 2026.
Category Security
How this component scores in each security and reliability category. Every signal is checked automatically against the live server, and we only credit what we can confirm. How we score → Why this is hard to score →
Endpoint Security74
- The endpoint's TLS certificate is valid, in date, and uses a strong key. View diagnostics → Pass
- No authorisation is required to call this server. Every tool declares its destructiveHint and none is destructive, so open access doesn't expose one. See how to fix → View diagnostics → Partial
- HTTPS is enforced; there's no plaintext access path. View diagnostics → Pass
- HSTS check failed: the Strict-Transport-Security header is absent. See how to fix → View diagnostics → Fail
- DNSSEC check failed: this domain isn't protected by DNSSEC. See how to fix → View diagnostics → Fail
Transport & Reachability100
- Verified streamable-http transport via a live MCP handshake. View diagnostics → Pass
Schema Quality & AI Usability80
- 100% of prompts and resources have a non-trivial description (not blank, and not just the item's name).Pass
- AI-judged instruction clarity (good).Pass
- Context-footprint check failed: tool/resource definitions use about 559 tokens (~139/item across 4 items; 3 tools + 1 resources), over budget; trim descriptions and params. See how to fix → Fail
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management3
- Stability observed for 1 of 30 days with no destabilising changes; credit accrues until the full window elapses.Partial
Tool Coverage100
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 100% of tool parameters carry a description.Pass
Tool Safety100
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- We read all 3 captured tool definition(s), and no name or description among them implies an irreversible operation.Pass
- An AI judge read all 5 captured unit(s) of tool text and found none that tries to manipulate the model reading it.Pass
Capabilities100
- Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.Pass
- Supports UI / widget rendering.Pass
Every change we have recorded for this component, newest first. Security-relevant changes are always shown. ▲ marks a change for the better, ▼ a change for the worse; unmarked changes are neutral.
- 5 Nov 26 0
- Stability: unverified → 0.03 ▲ functional
- 4 Nov 26 72
First indexed and scored.
Diagnostic detail from the automated scan of this channel: what the scanner observed at each step, so you can see exactly where a check passed or failed. It is informational only and never changes the trust score.
Captured 5 Nov 2026 · Probed https://tools.realmarketlabs.com/mcp/site-check
TLS valid
Negotiated TLS 1.3 with TLS_AES_128_GCM_SHA256 .
| Subject | Issuer | Valid from | Valid until | Key | Signature | Serial |
|---|---|---|---|---|---|---|
| CN=tools.realmarketlabs.com | CN=YR2,O=Let's Encrypt,C=US | 8 Sept 2026 | 7 Dec 2026 | RSA 2048 | SHA256-RSA | 5d0b6502880ece5d7dc706ed3e12ac70df1 |
| SANs: tools.realmarketlabs.com | ||||||
| CN=YR2,O=Let's Encrypt,C=US (CA) | CN=Root YR,O=ISRG,C=US | 3 Sept 2025 | 2 Sept 2028 | RSA 2048 | SHA256-RSA | 4ebd24947e24d394802d84a52fd5b319 |
| CN=Root YR,O=ISRG,C=US (CA) | CN=ISRG Root X1,O=Internet Security Research Group,C=US | 13 May 2026 | 2 Sept 2032 | RSA 4096 | SHA256-RSA | f24b6d17f9d9ad7cb1c9fea78782699f |
Background: What to check on a remote MCP endpoint →
DNSSEC insecure
Validation of tools.realmarketlabs.com. — Not signed
| Zone | DS | Keys | Algorithms | Outcome |
|---|---|---|---|---|
| . | trust_anchor | 20326, 38696 | 8, 8 | Verified |
| com. | present | 19718 | 13 | Verified |
| realmarketlabs.com. | absent | Unsigned (proven) parent-signed NSEC/NSEC3 proves an unsigned delegation |
Authentication No authorisation required
The endpoint answered without asking for a token. Anyone who knows the URL can reach it.
| Result | No authorisation required |
|---|---|
| HTTP status | 200 |
Background: How OAuth 2.1 works in the 2026 MCP spec →
Transports 2 probes
| Transport | URL | Outcome | Status | Location |
|---|---|---|---|---|
| streamable-http | https://tools.realmarketlabs.com/mcp/site-check | Verified | 200 | |
| http (plaintext) | http://tools.realmarketlabs.com/mcp/site-check | HTTPS enforced | 301 | https://tools.realmarketlabs.com/mcp/site-check |
The tools this component advertises to a client, with an estimated token cost for each. Expand a tool to see its parameters and schema. The per-tool counts are indicative and are not scored directly; the schema's total context footprint is one signal in Schema Quality & AI Usability. A tool's description is untrusted text the model reads on every call, which is what makes this list a security surface and not just an inventory: how tool poisoning works →
check_ai_built_app Check an app built with AI tools ~175
Reads the public pages and public JavaScript of a web app (typically built with Lovable, Bolt, v0, Replit or similar) and reports exposed API keys, public source maps, missing security headers, stale deploys, missing error monitoring and AI model calls made from the browser. Passive check: it never logs in, submits forms or probes private routes.
| Name | Type | Req | Description |
|---|---|---|---|
| language | string | – | Language of the report: 'pt' (Portuguese) or 'es' (Spanish). Use the user's language; default 'pt'. |
| sends_user_data_to_ai | string | – | Optional. Whether the user says the app sends its users' data to an AI model. |
| url | string | yes | Public address of the site to check, e.g. 'example.com' or 'https://example.com'. |
No output schema declared.
No examples provided.
check_site_email_security Check email authentication and site security ~108
Checks whether a domain's email is likely to reach the inbox (SPF, DKIM and DMARC records, mail servers) and whether the website has basic security in place (HTTPS, security headers, WordPress exposure, Lovable/Supabase setup). Reads only public DNS records and the public home page. The report is written in Portuguese.
| Name | Type | Req | Description |
|---|---|---|---|
| url | string | yes | Public address of the site to check, e.g. 'example.com' or 'https://example.com'. |
No output schema declared.
No examples provided.
diagnose_shopify_store Diagnose a Shopify store ~114
Reads the public pages of a Shopify store and reports whether it offers social login and a wishlist, how many products show as sold out, and whether it runs storefronts for several countries. Reads only public pages.
| Name | Type | Req | Description |
|---|---|---|---|
| language | string | – | Language of the report: 'pt' (Portuguese) or 'es' (Spanish). Use the user's language; default 'pt'. |
| url | string | yes | Public address of the site to check, e.g. 'example.com' or 'https://example.com'. |
No output schema declared.
No examples provided.
How do I install the RealMarket Site Check MCP server?
RealMarket Site Check is a hosted endpoint at https://tools.realmarketlabs.com/mcp/site-check, so there is nothing to install locally. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.
remote · tools.realmarketlabs.com
claude mcp add --transport http com-realmarketlabs-tools-site-check 'https://tools.realmarketlabs.com/mcp/site-check'
What is the RealMarket Site Check MCP server?
RealMarket Site Check is an MCP server listed in the public MCP registry as com.realmarketlabs.tools/site-check. Passive checks of a public website: email authentication (SPF, DKIM, DMARC) and basic security. This page covers its hosted endpoint (https://tools.realmarketlabs.com/mcp/site-check).
Is the RealMarket Site Check MCP server safe to use?
RealMarket Site Check scores 72 out of 100 on VerifyMCP. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.
What tools does the RealMarket Site Check MCP server expose?
RealMarket Site Check exposes 3 tools: check_site_email_security, check_ai_built_app, diagnose_shopify_store. Their descriptions and schemas cost roughly 397 tokens of context every time the server is loaded.
Does the RealMarket Site Check MCP server require authentication?
No. We connected to RealMarket Site Check without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.
Is the RealMarket Site Check MCP server still maintained?
RealMarket Site Check is still listed as active in the MCP registry. We last reached this channel on 5 November 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.