Rank #3,682Updated November 10, 2026
prometheus.io
Prometheus - Monitoring system & time series database
The site runs on Next.js, React, Google Analytics 4 and 4 other technologies. Its email security grade is F. Its SSL certificate is issued by Google Trust Services and is valid for 49 more days.
- Domain age
- —
- Technologies
- 7
- Email security
- F
- SSL days left
- 49
DNS records
| Type | Value | TTL |
|---|---|---|
| A | 104.21.60.220 | 300 |
| A | 172.67.201.240 | 300 |
| MX | aspmx.l.google.com 1 | 300 |
| MX | alt3.aspmx.l.google.com 10 | 300 |
| MX | alt4.aspmx.l.google.com 10 | 300 |
| MX | bq2ktxwtt2jn3bfqdxyun7k5xiocls2bzyovljf6x3phdcvxr56q.mx-verification.google.com 15 | 300 |
| MX | alt1.aspmx.l.google.com 5 | 300 |
| MX | alt2.aspmx.l.google.com 5 | 300 |
| NS | damon.ns.cloudflare.com | 86400 |
| NS | gene.ns.cloudflare.com | 86400 |
| CAA | issue 0 comodoca.com | 3600 |
| CAA | issue 0 digicert.com; cansignhttpexchanges=yes | 3600 |
| CAA | issue 0 letsencrypt.org | 3600 |
| CAA | issue 0 pki.goog; cansignhttpexchanges=yes | 3600 |
| CAA | issue 0 ssl.com | 3600 |
| CAA | issuewild 0 comodoca.com | 3600 |
| CAA | issuewild 0 digicert.com; cansignhttpexchanges=yes | 3600 |
| CAA | issuewild 0 letsencrypt.org | 3600 |
| CAA | issuewild 0 pki.goog; cansignhttpexchanges=yes | 3600 |
| CAA | issuewild 0 ssl.com | 3600 |
| TXT | google-site-verification=pD7ffQ-fdaKAyzu2JGGbJ6s_vo4sbxFA-F7EbiAqai0 | 3600 |
| AAAA | 2606:4700:3035::6815:3cdc | 289 |
| AAAA | 2606:4700:3030::ac43:c9f0 | 289 |
Technology stack
Analytics
CDN
Hosting
Programming language
Security
Analytics and advertising IDs
google_analytics:G-80ZM8LGB96SSL certificate
| Valid | Valid |
|---|---|
| Issuer | US, WE1, Google Trust Services |
| Expires | December 29, 2026 |
| Days remaining | 49 |
| Protocol | TLSv1.3 |
| Names | prometheus.io, *.prometheus.io |
Email security
FScore 5/100 across SPF, DMARC, DKIM, MTA-STS and BIMI.
- badNo SPF record. Anyone can send email that claims to come from prometheus.io.
- 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).
- good6 MX record(s) found. Mail is handled by Google Workspace.
Homepage metadata
| Title | Prometheus - Monitoring system & time series database |
|---|---|
| Description | An open-source monitoring system with a dimensional data model, flexible query language, efficient time series database and modern alerting approach. |
| Language | en |
| Canonical | https://prometheus.io/ |
| Indexable | Yes |
| Word count | 369 |
About prometheus.io
What technology does prometheus.io use?
We detected 7 technologies on prometheus.io, including Google Analytics 4, Cloudflare, Netlify, Next.js, React, Node.js.
Does prometheus.io protect its email with SPF and DMARC?
prometheus.io scores 5/100 (grade F) for email security. No SPF record. Anyone can send email that claims to come from prometheus.io. 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 prometheus.io?
prometheus.io uses damon.ns.cloudflare.com, gene.ns.cloudflare.com.