01.dev was registered on 20 Nov 2014 and is hosted in United States. We couldn't read an SSL certificate for it when we last analysed it.
What security vendors and the WOT community say about this domain.
3 of 5 protections set up
Lists the servers allowed to send email for this domain.
v=spf1 include:_spf.protonmail.ch ~allSigns outgoing mail so receivers can verify it.
selector protonmail._domainkeyPolicy is “quarantine”: spoofed mail goes to spam.
v=DMARC1; p=quarantineForces encrypted delivery between mail servers.
—Shows the brand logo in supporting inboxes. Optional; needs DMARC enforcement.
—Read from the domain's public DNS records.
What loads and tracks visitors when the homepage opens.
Running a full browser scan of the homepage… This takes about a minute.
We couldn't read an SSL certificate on port 443 when we last analysed 01.dev. Refresh the analysis to check again.
Internet standards that make a site faster and safer.
Is 01.dev’s name taken on other extensions?
Every IP address 01.dev resolves to, and where it's hosted.
| Host | IPv4 address | TTL |
|---|---|---|
| 01.dev | 209.164.16.203 | 14400 |
| Host | Mail server | TTL |
|---|---|---|
| 01.dev | 10 mail.protonmail.ch | 14400 |
| 01.dev | 20 mailsec.protonmail.ch | 14400 |
| Host | Name server | TTL |
|---|---|---|
| 01.dev | ns-cloud-b1.googledomains.com | 21600 |
| 01.dev | ns-cloud-b2.googledomains.com | 21600 |
| 01.dev | ns-cloud-b3.googledomains.com | 21600 |
| 01.dev | ns-cloud-b4.googledomains.com | 21600 |
| Host | Text | TTL |
|---|---|---|
| 01.dev | "protonmail-verification=4bdbd39df83db66b0843900d570b51208f037546" | 14400 |
| 01.dev | "v=spf1 include:_spf.protonmail.ch ~all" | 14400 |
| Host | Start of authority | TTL |
|---|---|---|
| 01.dev | ns-cloud-b1.googledomains.com cloud-dns-hostmaster.google.com 7 21600 3600 259200 300 | 21600 |
| Host | Value | TTL |
|---|---|---|
| 01.dev | 256 3 8 AwEAAZqOAMjC/hH1i85Bb7GTZS4wJ01TT4P03ROqKaKpLR8OUrlJPn+A70i1sFryNa1qErjnUBMoEYVaH3xU4tqOWV4pV9prgJ/2YE1RNnSvxggrtzyigvCmq9vSocuiflkZGIZf4QiHMyrlEt4yvf15nixDYvnrHHSOCXlX4cFgSWgx | 300 |
| 01.dev | 257 3 8 AwEAAZbkVhHcWHJIJnCI4SfSTbkjodtIKILWrKuxXmy0DYW7HOVVs54bovTS09DWJ9V1JUbh4wGEV4/uanqRoX8X2vsJefgEAPeE4K/EpmbeWp+O5WiQEvf1sWu8YN7Raqo3hpSIIThgbVqt8rLrIEZvDJZsj4gAaAyfZhCbmA03gowL2p4zoHaJQ4VW/7qaMMUCRbtGw4zTexdKSVnRwUzKT8nmLspYDPYU5pPver5DjdBBiaqXmJ4QSUyj46mK3MqoH4j8y+YjoyzfZUtq0TO9y6cm/xvkl88YdyX52wVraHjKgucA82V8pJ6dPdROdWFLrnc8+aTwEs3k2eisy52lMHk= | 300 |
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Reviews are from CubDomain users and are separate from the security verdicts above.
Common questions, answered from this report's data.
01.dev has no community safety rating yet. We couldn't read an SSL certificate on it when we last analysed it. See Security →
01.dev was registered on 20 Nov 2014, making it 11 years old. See Overview →
01.dev is served from 1 IP address, mainly in United States. See Hosting →
Raw registry data for 01.dev. May be redacted by privacy services.
% IANA WHOIS server % for more information on IANA, visit http://www.iana.org % This query returned 1 object domain: DEV organisation: Charleston Road Registry Inc. address: 1600 Amphitheatre Parkway address: Mountain View CA 94043 address: United States of America (the) contact: administrative name: TLD Admin organisation: Google Inc. address: 111 8th Avenue address: New York NY 10011 address: United States of America (the) phone: +1 404 978 8419 fax-no: +1 650 492 5631 e-mail: [email protected] contact: technical name: TLD Engineering organisation: Google Inc. address: 76 Ninth Avenue, 4th Floor address: New York NY 10011 address: United States of America (the) phone: +1 404 978 8419 fax-no: +1 650 492 5631 e-mail: [email protected] nserver: NS-TLD1.CHARLESTONROADREGISTRY.COM 2001:4860:4802:32:0:0:0:69 216.239.32.105 nserver: NS-TLD2.CHARLESTONROADREGISTRY.COM 2001:4860:4802:34:0:0:0:69 216.239.34.105 nserver: NS-TLD3.CHARLESTONROADREGISTRY.COM 2001:4860:4802:36:0:0:0:69 216.239.36.105 nserver: NS-TLD4.CHARLESTONROADREGISTRY.COM 2001:4860:4802:38:0:0:0:69 216.239.38.105 nserver: NS-TLD5.CHARLESTONROADREGISTRY.COM 2001:4860:4805:0:0:0:0:69 216.239.60.105 ds-rdata: 60074 8 2 b942e2ce5aebf62fca59d05707e6dbb795211d540d8adba02e9e89e833424785 whois: status: ACTIVE remarks: Registration information: https://www.registry.google created: 2014-11-20 changed: 2025-04-11 source: IANA
Four timed TCP connections to port 443 from CubDomain's servers.
CubDomain is not affiliated with 01.dev. Data is collected independently from public sources and some figures are estimates, provided for information only.
Spam and malware blocklists for the site's IP and mail servers.
Found in public certificate transparency logs.
Searching the certificate transparency logs… This can take up to a minute.
When the site first appeared, and what has changed since.
No changes seen since we started recording on 15 Oct 2026.