Rank #4,551Updated November 10, 2026
swagger.io
API Documentation & Design Tools for Teams | Swagger
The site runs on Astro, Google Optimize, Cloudflare and 2 other technologies. Its email security grade is F. Its SSL certificate is issued by Google Trust Services and is valid for 82 more days.
- Domain age
- —
- Technologies
- 5
- Email security
- F
- SSL days left
- 82
DNS records
| Type | Value | TTL |
|---|---|---|
| A | 162.159.140.69 | 300 |
| A | 172.66.0.69 | 300 |
| MX | us-smtp-inbound-1.mimecast.com 0 | 3600 |
| MX | us-smtp-inbound-2.mimecast.com 10 | 3600 |
| NS | ns-1077.awsdns-06.org | 300 |
| NS | ns-1991.awsdns-56.co.uk | 300 |
| NS | ns-266.awsdns-33.com | 300 |
| NS | ns-725.awsdns-26.net | 300 |
| TXT | ahrefs-site-verification_1d2c1c43e1d55985da2e06feddacc88fbb8c041d9db1b94a72fe737b8c278ebb | 3600 |
| TXT | detectify-verification=8ed6429e219678f4eb827c47022baa9b | 3600 |
| TXT | google-site-verification=ADwb7r6XTIZqavtEaI_QSKb0zD9nNlWuE7-e-Z2eOCA | 3600 |
| TXT | v=spf1 a mx include:spf.protection.outlook.com include:us._netblocks.mimecast.com include:us._netblocks.mimecast.com include:servers.mcsv.net include:sendgrid.net include:datadrivenemail.com ~all | 3600 |
Technology stack
A/B testing
CDN
Fonts
JavaScript framework
Tag manager
Analytics and advertising IDs
google_tag_manager:GTM-PL25XRTgoogle_tag_manager:GTM-PFFSBW3SSL certificate
| Valid | Valid |
|---|---|
| Issuer | US, WE1, Google Trust Services |
| Expires | January 31, 2027 |
| Days remaining | 82 |
| Protocol | TLSv1.3 |
| Names | swagger.io |
Email security
FScore 48/100 across SPF, DMARC, DKIM, MTA-STS and BIMI.
- warnSPF uses 9 of the 10 allowed DNS lookups. Adding another service may break it.
- warnDMARC policy is none (monitoring only). Spoofed mail is still delivered.
- 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).
- goodSPF record found.
- goodSPF ends with ~all: servers you have not listed are marked as suspicious (soft fail).
- goodDMARC aggregate reports are sent to mailto:[email protected].
- good2 MX record(s) found. Mail is handled by Mimecast.
Homepage metadata
| Title | API Documentation & Design Tools for Teams | Swagger |
|---|---|
| Description | Simplify API development for users, teams, and enterprises with our open source and professional toolset. Findogut how Swagger can help you and get started today. |
| Language | en |
| Canonical | https://swagger.io/ |
| Indexable | Yes |
| Word count | 631 |
About swagger.io
What technology does swagger.io use?
We detected 5 technologies on swagger.io, including Google Optimize, Cloudflare, Google Fonts, Astro, Google Tag Manager.
Does swagger.io protect its email with SPF and DMARC?
swagger.io scores 48/100 (grade F) for email security. SPF uses 9 of the 10 allowed DNS lookups. Adding another service may break it. DMARC policy is none (monitoring only). Spoofed mail is still delivered.
What are the name servers of swagger.io?
swagger.io uses ns-1077.awsdns-06.org, ns-1991.awsdns-56.co.uk, ns-266.awsdns-33.com, ns-725.awsdns-26.net.