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grammarmug.com was registered with Name.com, Inc. on 23 Oct 2026 and is hosted on AS16509 in United States. Its SSL certificate from Let's Encrypt is valid until 22 Jan 2027, and the site does not support HTTP/3.
On-page basics for the homepage.
Networks cache previews — changes can take time to show.
What security vendors and the WOT community say about this domain.
0 of 5 protections set up
No SPF record: any server can send mail that claims to come from this domain.
—No key at the 12 common selectors we checked. A custom selector can’t be found from DNS alone.
—Policy is “none”: spoofed mail is reported but not blocked.
v=DMARC1; p=none;Forces encrypted delivery between mail servers.
—Shows the brand logo in supporting inboxes. Optional; needs DMARC enforcement.
—Read from the domain's public DNS records.
5 of 6 recommended headers
Forces HTTPS on future visits.
Limits where scripts can load from — the main defence against XSS.
Stops the site being framed for clickjacking.
Prevents browsers guessing file types.
Which AI crawlers this site allows, and whether it publishes an llms.txt.
From robots.txt. “Partly blocked”: kept out of some pages, not the homepage. Not every crawler follows it. llms.txt is an optional guide some sites publish for AI assistants — it is not a ranking factor.
Pages and files that show who runs the site and how it handles data.
What loads and tracks visitors when the homepage opens.
Running a full browser scan of the homepage… This takes about a minute.
Internet standards that make a site faster and safer.
The path from a typed address to the final page.
No similar domains registered in the last 90 days.
From CubDomain's daily newly registered domains. Similar doesn't mean malicious.
Is grammarmug.com’s name taken on other extensions?
Every IP address grammarmug.com resolves to, and where it's hosted.
| Host | IPv4 address | TTL |
|---|---|---|
| grammarmug.com | 216.150.1.193 | 1800 |
| grammarmug.com | 216.150.16.193 | 1800 |
| Host | Mail server | TTL |
|---|---|---|
| grammarmug.com | 10 receive.forge.rmta.net | 60 |
| Host | Name server | TTL |
|---|---|---|
| grammarmug.com | ns1.vercel-dns.com | 86400 |
| grammarmug.com | ns2.vercel-dns.com | 86400 |
| Host | Text | TTL |
|---|---|---|
| grammarmug.com | "google-site-verification=eHDuD7Vq5lYzN8WHh0lxZ7XxxSb8klgg5EosjWOy_VY" | 60 |
| Host | Policy | TTL |
|---|---|---|
| grammarmug.com | 0 issue letsencrypt.org | 60 |
| grammarmug.com | 0 issue pki.goog | 60 |
| grammarmug.com | 0 issue sectigo.com | 60 |
| Host | Start of authority | TTL |
|---|---|---|
| grammarmug.com | ns1.vercel-dns.com hostmaster.nsone.net 1792798478 43200 7200 1209600 600 | 3600 |
Other domains served from 216.150.1.1. Normal for shared hosting and CDNs.
No reviews yet. Used grammarmug.com? Be the first to say how it went.
Reviews are from CubDomain users and are separate from the security verdicts above.
Common questions, answered from this report's data.
grammarmug.com has no community safety rating yet, and it isn't on any of the 6 blocklists we check. Its SSL certificate is valid until 22 Jan 2027. See Security →
grammarmug.com is registered through Name.com, Inc. See WHOIS →
The registration expires on 23 Oct 2027 — in 11 months. See Overview →
grammarmug.com was registered on 23 Oct 2026, making it 21 days old. See Overview →
grammarmug.com is served from 2 IP addresses, mainly on AS16509 in United States. See Hosting →
Raw registry data for grammarmug.com. May be redacted by privacy services.
Domain Name: GRAMMARMUG.COM
Registry Domain ID: 3157846502_DOMAIN_COM-VRSN
Registrar WHOIS Server: whois.name.com
Registrar URL: http://www.name.com
Updated Date: 2026-10-23T23:34:36Z
Creation Date: 2026-10-23T23:34:35Z
Registry Expiry Date: 2027-10-23T23:34:35Z
Registrar: Name.com, Inc.
Registrar IANA ID: 625
Registrar Abuse Contact Email: abuse@name.com
Registrar Abuse Contact Phone: 7202492374
Domain Status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited
Name Server: NS1.VERCEL-DNS.COM
Name Server: NS2.VERCEL-DNS.COM
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of whois database: 2026-11-13T19:32:03Z <<<
For more information on Whois status codes, please visit https://icann.org/epp
NOTICE: The expiration date displayed in this record is the date the
registrar's sponsorship of the domain name registration in the registry is
currently set to expire. This date does not necessarily reflect the expiration
date of the domain name registrant's agreement with the sponsoring
registrar. Users may consult the sponsoring registrar's Whois database to
view the registrar's reported date of expiration for this registration.
TERMS OF USE: You are not authorized to access or query our Whois
database through the use of electronic processes that are high-volume and
automated except as reasonably necessary to register domain names or
modify existing registrations; the Data in VeriSign Global Registry
Services' ("VeriSign") Whois database is provided by VeriSign for
information purposes only, and to assist persons in obtaining information
about or related to a domain name registration record. VeriSign does not
guarantee its accuracy. By submitting a Whois query, you agree to abide
by the following terms of use: You agree that you may use this Data only
for lawful purposes and that under no circumstances will you use this Data
to: (1) allow, enable, or otherwise support the transmission of mass
unsolicited, commercial advertising or solicitations via e-mail, telephone,
or facsimile; or (2) enable high volume, automated, electronic processes
that apply to VeriSign (or its computer systems). The compilation,
repackaging, dissemination or other use of this Data is expressly
prohibited without the prior written consent of VeriSign. You agree not to
use electronic processes that are automated and high-volume to access or
query the Whois database except as reasonably necessary to register
domain names or modify existing registrations. VeriSign reserves the right
to restrict your access to the Whois database in its sole discretion to ensure
operational stability. VeriSign may restrict or terminate your access to the
Whois database for failure to abide by these terms of use. VeriSign
reserves the right to modify these terms at any time.
The Registry database contains ONLY .COM, .NET, .EDU domains and
Registrars.The first response from http://www.grammarmug.com, before any redirect: caching, server and policy headers.
Four timed TCP connections to port 443 from CubDomain's servers.
CubDomain is not affiliated with grammarmug.com. Data is collected independently from public sources and some figures are estimates, provided for information only.
Controls how much of the URL is shared with other sites.
Restricts camera, microphone and other browser features.
From the homepage's response, https://www.tomo.ai/?utm_source=grammarmug.com&utm_medium=vanity_domain
Spam and malware blocklists for the site's IP and mail servers.
0 of 6 blocklists list this domain's IP or mail servers.
When the site first appeared, and what has changed since.
No changes seen since we started recording on 13 Nov 2026.
Found in public certificate transparency logs.
| Subdomain | First seen |
|---|---|
| www.grammarmug.com | Mar 2019 |