stackmcp.app

Get an email when its DNS, website or certificate changes.

stackmcp.app serves a website of its own over HTTPS. It answers on IPv4 only, with a valid TLS certificate.

339,567 other domains share an IP address with it.

The most recent crawl returned the page title “StackMCP — Test your MCP server before agents do” and 3,825 bytes of HTML.

Domain properties

Property	Value	Explanation
Top-level domain	.app	Statistics for all domains we know under this TLD.
Has website	yes	A website is hosted under the domain, which does not redirect to an external domain.
Has MX-record	no	The domain has an MX record.
External redirect	no	The domain redirects to another domain.
Redirect to https	yes	The domain redirects to https.
Redirect to www.	no	The domain redirects to www.domain.
Only with www.	no	The domain can only be reached with the subdomain "www".
Only DNS, no website	no	There are no A or AAAA records in DNS.
IP-Address	only IPv4	Shows whether the domain only has IPv4 or IPv6 or both.
SSL-Certificate	valid	Shows whether the domain has a valid SSL certificate.
Redirects	0	Number of domains that redirect to this domain.
Reverse IP	339,567	Number of domains with the same IP(s).

This data through the API

The data on this page is also available as JSON: /lookup for the key facts, /reverseip, /redirect and /similar for the lists, and /dnshistory with Basic and Premium. A free account comes with an API key and 100 calls a day.

curl -X POST https://api.webxtrend.com/v1.0/lookup \
  -H 'Content-Type: application/json' \
  -d '{"token": "YOUR_TOKEN", "query": "stackmcp.app"}'

Create a free account Read the API docs

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Websites whose start page offers something similar, found by comparing the text of their start pages, across languages. Near-identical copies, parking pages and error pages are left out. The full list of up to 100 comes through the API: similar websites.

Last SSL certificate

Issuer	Google Trust Services
Valid from	9/16/2026
Valid to	12/15/2026
Time until expiry	53 days

Last successful crawl

Title	StackMCP — Test your MCP server before agents do
Description	Test your MCP server before agents do. StackMCP runs a deterministic per-tool pass/fail report against any MCP endpoint — JSON-RPC 2.0 protocol validation, schema checks, error-handling probes, optional Blueprint Protocol compliance. Free instant test, no login required.
Content-Length	3,825 bytes

Title and description as published by the page itself in its own <title> and <meta name="description"> tags.

DNS history

IPv4 address	Last updated
199.36.158.100	5/25/2026

Name server	Last updated
sasha.ns.cloudflare.com	5/25/2026
wells.ns.cloudflare.com	5/25/2026

The five most recent states of each record type. The full history comes through the API: DNS history.

Most recent redirect domains

No domains found.

Reverse IP neighbours

199.36.158.100 339,567 domains · here since 9/19/2026

Domain	On this IP since
zzzpop.fr	9/19/2026
zzz.team	9/22/2026
zzyzxservices.autos	9/15/2026
zzymob.mom	9/18/2026
zzyforce.buzz	9/16/2026
zzuvi.com	9/16/2026
zzrns.com	9/20/2026
zzpay.app	9/16/2026
zzoman.com	9/18/2026
zzmsoluti.shop	9/21/2026
zzmove.app	10/17/2026
zzlinkguvenlik.com	9/20/2026
and 339,554 more

Sharing an address does not always mean sharing a server: on a CDN or a large hosting platform, millions of unrelated domains answer on the same few addresses. We measured how far that goes in Half the web sits on 276 IP addresses. The complete list of neighbours, also for an IP address, comes through the API: reverse IP lookup.

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