go.dev
The Go Programming Language
go.dev is registered with MarkMonitor Inc. since February 13, 2019 (7.7 years). The registration expires on February 13, 2027. The site runs on Google Fonts, Google Cloud, jQuery and 3 other technologies. Its email security grade is F. Its SSL certificate is issued by Google Trust Services and is valid for 40 more days.
- Domain age
- 7.7 yrs
- Technologies
- 6
- Email security
- F
- SSL days left
- 40
Registration
| Registrar | MarkMonitor Inc. |
|---|---|
| IANA ID | 292 |
| Registered | February 13, 2019 |
| Expires | February 13, 2027 |
| Updated | January 17, 2026 |
| Status | client delete prohibited, client transfer prohibited, client update prohibited |
| Name servers | ns-cloud-e1.googledomains.com, ns-cloud-e2.googledomains.com, ns-cloud-e3.googledomains.com, ns-cloud-e4.googledomains.com |
| DNSSEC | Not signed |
DNS records
| Type | Value | TTL |
|---|---|---|
| A | 216.239.36.21 | 215 |
| A | 216.239.32.21 | 215 |
| A | 216.239.38.21 | 215 |
| A | 216.239.34.21 | 215 |
| MX | alt4.aspmx.l.google.com 10 | 300 |
| MX | alt1.aspmx.l.google.com 5 | 300 |
| MX | alt3.aspmx.l.google.com 10 | 300 |
| MX | alt2.aspmx.l.google.com 5 | 300 |
| MX | aspmx.l.google.com 1 | 300 |
| NS | ns-cloud-e3.googledomains.com | 21600 |
| NS | ns-cloud-e2.googledomains.com | 21600 |
| NS | ns-cloud-e1.googledomains.com | 21600 |
| NS | ns-cloud-e4.googledomains.com | 21600 |
| CAA | issue 0 pki.goog | 300 |
| CAA | issue 0 letsencrypt.org | 300 |
| TXT | v=DMARC1; p=none; rua=mailto:[email protected]; | 300 |
| TXT | google-site-verification=eqtrduRyMRS8TuoUEuYMF-u9_IDRMd1In6T6E1gTchU | 300 |
| TXT | google-site-verification=eYE-BIP9BY8VZCUI_r8sJi7qjRVtxyRQSlbZmeVVlzE | 300 |
| TXT | google-site-verification=3oHHTSOKrjE9J8SIvyj3gUxEtDjmr5oNZ-DbB271vpM | 300 |
| TXT | google-site-verification=mJdpiJi2GyNG9nz7sctCXgJnzDHzdFzfhOqTTDuMR0s | 300 |
| TXT | google-site-verification=qvibgBDBD_1VeFXvgduqw1cmDeMpAS_qBCZCFauYduk | 300 |
| AAAA | 2001:4860:4802:38::15 | 300 |
| AAAA | 2001:4860:4802:34::15 | 300 |
| AAAA | 2001:4860:4802:32::15 | 300 |
| AAAA | 2001:4860:4802:36::15 | 300 |
Technology stack
Analytics and advertising IDs
google_tag_manager:GTM-W8MVQXGOther sites using the same IDs: golang.org
SSL certificate
| Valid | Valid |
|---|---|
| Issuer | US, WR3, Google Trust Services |
| Expires | December 20, 2026 |
| Days remaining | 40 |
| Protocol | TLSv1.3 |
| Names | go.dev |
Email security
- badNo SPF record. Anyone can send email that claims to come from go.dev.
- badNo DMARC record. Receivers have no instructions for mail that fails SPF and DKIM, and you get no reports about who sends as your domain.
- warnNo DKIM key found at common selectors (google, selector1, selector2, default, k1, k2, s1, s2, ...). DKIM may still use a custom selector we cannot guess.
- warnNo MTA-STS: mail sent to you can be downgraded to an unencrypted connection.
- warnNo TLS-RPT record, so you won't hear about failed encrypted deliveries.
- warnNo BIMI record (optional: shows your logo next to your emails in supporting inboxes).
- good5 MX record(s) found. Mail is handled by Google Workspace.
Homepage metadata
| Title | The Go Programming Language |
|---|---|
| Description | Go is an open source programming language that makes it simple to build secure, scalable systems. |
| Language | en |
| Canonical | https://go.dev/ |
| Indexable | Yes |
| Word count | 1133 |
About go.dev
Who is the registrar of go.dev?
go.dev is registered with MarkMonitor Inc. (IANA ID 292).
When does go.dev expire?
The current registration of go.dev expires on February 13, 2027. It was first registered on February 13, 2019.
What technology does go.dev use?
We detected 6 technologies on go.dev, including Google Fonts, Google Cloud, jQuery, Content Security Policy, HSTS, Google Tag Manager.
Does go.dev protect its email with SPF and DMARC?
go.dev scores 5/100 (grade F) for email security. No SPF record. Anyone can send email that claims to come from go.dev. No DMARC record. Receivers have no instructions for mail that fails SPF and DKIM, and you get no reports about who sends as your domain.
What are the name servers of go.dev?
go.dev uses ns-cloud-e3.googledomains.com, ns-cloud-e2.googledomains.com, ns-cloud-e1.googledomains.com, ns-cloud-e4.googledomains.com.