Server providing Argo CD integration for MCP clients.
Nothing to run from here
is it DNS? is installed from its publisher's own source and answers where it runs, so this marketplace is not in the path of a single call. There is no address here to send one to, and a panel that pretended otherwise would be showing you an answer we made up. Install it and call it from your own client — the Installation tab has the entry for each one.
6
tools declared
—
trust score
remote
at its publisher
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calls last 7d
What it does
Live DNS: dig any public resolver, audit a domain, walk a delegation, read the resolver board.
Quickstart
# 1 — add it to Claude Code
claude mcp add --scope user --transport http is-it-dns-mcp https://isitdns.net/mcp
# 2 — ask your agent for something these tools do
# check_domain, dig, trace and 3 more
is it DNS? costs nothing on mcprush: there is no plan to choose here, no cap to set and nothing mcprush can bill you for.
Publishernot claimed
ISAll 1 server
isitdns1 server
1 category
Collected from a public index. Nobody has claimed this account, so nothing here was written by its author — claim it if it is yours.
Installation
Where are you running it?
Every route below installs the same thing and ends at the same approval screen. Nothing here runs on your machine and nothing runs on ours: this server answers at its publisher’s own address, and what you install is the connection straight to it.
Claude Codedeclared by this listing
This is a public server: it answers at its publisher’s own address and this marketplace is not in the path. Claude Code registers it in one command; --scope user makes it available in every project. The transport below is http, as the publisher's own manifest declares it.
claude mcp add --scope user --transport http is-it-dns-mcp https://isitdns.net/mcpReconnect, or start a new session, and the tools appear in the model’s tool list.
Free on mcprush, and it answers at its publisher’s own address: this marketplace is not in the path, so there is no key of ours to hold and no card to add.
What it writes
One config entry pointing straight at the publisher’s own address — this marketplace is not in the path, and nothing from this listing executes on your machine.
What you approve
6 tools, with what each one reads, writes and reaches shown before you agree — the same list on every route above. Read the tool surface.
Tool surface
What the model actually sees. Descriptions are diffed on every release — see version history.
Check a domain that is not working: whether the name resolves in public DNS, then the eleven-check audit of its zone, each row ok, warn, fail or skipped with why. DNS only, not HTTP or TLS, and not for one record: dig. Measured from the isitdns edge and its probes, never the caller's network. from moves the recursion, TTL and UDP truncation rows to that region's probe.
| Parameter | Type | Required | Notes |
|---|---|---|---|
| name | string | yes | The domain to audit. Also as "domain"; a URL is read as its host. |
| from | string | no | Region of the probe for the recursion, TTL and UDP truncation rows |
Dig one name and type at one board resolver, or at Cloudflare, Google, Quad9 and AdGuard side by side (resolver all): records, flags, rcode, EDE, latency. Not for a whole domain: check_domain. Asked over DoH from the isitdns edge. from moves the question to that region's probe as Do53 over UDP, and follow: true adds the CNAME chain as separate reads with DNSSEC off. A resolver given as an address
| Parameter | Type | Required | Notes |
|---|---|---|---|
| name | string | yes | The name, e.g. _dmarc.example.com. Also as "domain"; a URL is read as its host. |
| type | string | no | Record type, e.g. A, MX, TXT, DS, HTTPS, or TYPE<n> |
| resolver | string | no | A board resolver id (cloudflare, google, quad9, opendns, adguard, cleanbrowsing, controld, quad9-unfiltered, adguard-family, cleanbrowsing-family, adguard-unfiltered, opendns-familyshield, nextdns, cl |
| dnssec | boolean | no | Set the DO bit and read AD |
| cd | boolean | no | Ask the resolver not to validate |
| ecs | string | no | EDNS Client Subnet, e.g. 192.0.2.0/24 |
| norec | boolean | no | Clear RD, like dig +norec |
| nsid | boolean | no | Request NSID (RFC 5001) |
| family | string | no | Address family for Do53 dials; a DoH request does not choose it |
| from | string | no | Ask over Do53/UDP from the probe in this region (no other transport) |
| follow | boolean | no | Also walk the CNAME chain from this name, hop by hop, to its addresses |
Trace a delegation from the root to the authority, like dig +trace: each referral and its glue, the one server that answered at each zone cut and any dial that failed, the final answer and its TTLs. Not for every server of a zone: sweep_domain. Each hop is asked with RD=0 over TCP from the isitdns edge or a probe, named on the hop. Give the full host name: the walk ends at the zone that answers fo
| Parameter | Type | Required | Notes |
|---|---|---|---|
| name | string | yes | The name to walk. Also as "domain"; a URL is read as its host. |
| type | string | no | Record type for the final question |
Walk the DNSSEC chain from the root to one answer: DS and DNSKEY at each signed zone cut, key tags, signers, signature windows, and the first link that breaks or goes insecure. Not for one signed record: dig. Read through Cloudflare's resolver over DoH with CD=1 from the isitdns edge, and a key set a break would rest on again through Google's. Signature bytes are not verified, so a clean walk does
| Parameter | Type | Required | Notes |
|---|---|---|---|
| name | string | yes | The name, e.g. www.example.com. Also as "domain"; a URL is read as its host. |
| type | string | no | The record type to check at the end of the chain |
Sweep a zone's nameservers: the same names and types asked at a sample of its authoritative addresses, reporting disagreements, lame or silent servers, serial and TTL differences, the CAA in effect, and each _acme-challenge TXT or CNAME. Not for a public resolver's answer: dig. Asked with RD=0 over TCP from the isitdns edge or a probe, named on each answer. Every question not asked is listed with
| Parameter | Type | Required | Notes |
|---|---|---|---|
| domain | string | yes | The zone or name to sweep, e.g. example.com. Also as "name"; a URL is read as its host. |
| names | array | no | Labels under domain, "@" for domain itself. Default: @, www, _dmarc, _acme-challenge |
| types | array | no | Record types. Default: SOA, NS, A, AAAA, MX, TXT, CAA |
Read a domain's registration from its registry's RDAP server: each status with what it means for resolution, the registration, expiry and change dates, the nameservers, whether the delegation is signed. Not for what DNS answers: check_domain. Read over HTTPS from the isitdns edge through IANA's RDAP bootstrap, and no contacts are returned. A hostname is read at the name, then each parent down to t
| Parameter | Type | Required | Notes |
|---|---|---|---|
| domain | string | yes | The domain or a hostname under it. Also as "name"; a URL is read as its host. |
Free
$0 forever
- Every tool — any call limit is its publisher’s, not ours
- No card, and mcprush charges nothing for it
- Runs at its publisher’s own address — this marketplace is not in the path
- Nothing to cap, because mcprush bills nothing
What counts against your monthly calls
| Tool | Unit | Calls used | Out of the allowance |
|---|
Nothing here is billable: mcprush charges nothing to install is it DNS? or to call it, at any volume.
Call allowance · this installenforced at the gateway
Monthly allowance, in calls
—
—
Alert at 80% · then the tool returns a normal MCP error
Used this month: —
—Grade not published
No rule-by-rule report on file for this release
Two independent axes, because powerful and malicious are different questions. The grade is threat only. The capability level is blast radius, and it is never a penalty on the grade — it is priced as one subtract-only term in the score, where you can see it.
This listing is an address its publisher runs, and you connect to it directly — this marketplace is not in the path. The scanner reads packages and public source, and an address is neither. So there is no grade — not a withheld one, an unmeasured one.
Release history
This is an address its publisher runs: which release it serves is theirs to choose, so there is nothing here to pin. The history below is for reading; the current release on file is 2026-09-10.
2026-09-10
undated
latestNo release note was published with this version.
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no reviews yet
Who can review
One review per account, from a signed-in account that does not publish this listing. Nothing else is asked — you can say what you think before you install it. Publishers can reply once per review, and a review can be edited or deleted by whoever wrote it.
Sign in to write one
Any signed-in account that does not publish is it DNS? can review it, once — before installing it or after. A review from an account that has installed it is marked as one.
No reviews yet
Nobody has reviewed this listing. The rating on the card is the mean of the reviews written here and nothing else, so there is no rating until somebody writes the first — which takes a signed-in account that does not publish it, and nothing else.