cal.com B

24 hours
100.00%
7 days
100.00%
30 days
100.00%
IPv4 / IPv6
2 2
SSL Certificate
86d
Security Headers
0/6
Status Badges
Status Uptime 30d Uptime 7d Response Time SSL Performance Accessibility SEO Security Headers Uptime 24h Incidents IPv4/IPv6
Click any snippet to copy. Use Markdown for GitHub READMEs, HTML for websites.
Badge Markdown HTML
Status [![Status](https://updown.website/badge/cal.com/status.svg)](https://updown.website/site/cal.com/) <a href="https://updown.website/site/cal.com/"><img src="https://updown.website/badge/cal.com/status.svg" alt="Status"></a>
Uptime [![Uptime](https://updown.website/badge/cal.com/uptime.svg)](https://updown.website/site/cal.com/) <a href="https://updown.website/site/cal.com/"><img src="https://updown.website/badge/cal.com/uptime.svg" alt="Uptime"></a>
Response Time [![Response Time](https://updown.website/badge/cal.com/response-time.svg)](https://updown.website/site/cal.com/) <a href="https://updown.website/site/cal.com/"><img src="https://updown.website/badge/cal.com/response-time.svg" alt="Response Time"></a>
SSL [![SSL](https://updown.website/badge/cal.com/ssl.svg)](https://updown.website/site/cal.com/) <a href="https://updown.website/site/cal.com/"><img src="https://updown.website/badge/cal.com/ssl.svg" alt="SSL"></a>
Performance [![Performance](https://updown.website/badge/cal.com/cwv.svg)](https://updown.website/site/cal.com/) <a href="https://updown.website/site/cal.com/"><img src="https://updown.website/badge/cal.com/cwv.svg" alt="Performance"></a>
Accessibility [![Accessibility](https://updown.website/badge/cal.com/cwv.svg?category=accessibility)](https://updown.website/site/cal.com/) <a href="https://updown.website/site/cal.com/"><img src="https://updown.website/badge/cal.com/cwv.svg?category=accessibility" alt="Accessibility"></a>
SEO [![SEO](https://updown.website/badge/cal.com/cwv.svg?category=seo)](https://updown.website/site/cal.com/) <a href="https://updown.website/site/cal.com/"><img src="https://updown.website/badge/cal.com/cwv.svg?category=seo" alt="SEO"></a>
Security Headers [![Security Headers](https://updown.website/badge/cal.com/security-headers.svg)](https://updown.website/site/cal.com/) <a href="https://updown.website/site/cal.com/"><img src="https://updown.website/badge/cal.com/security-headers.svg" alt="Security Headers"></a>
Uptime 24h [![Uptime 24h](https://updown.website/badge/cal.com/uptime.svg?period=24h)](https://updown.website/site/cal.com/) <a href="https://updown.website/site/cal.com/"><img src="https://updown.website/badge/cal.com/uptime.svg?period=24h" alt="Uptime 24h"></a>
Incidents [![Incidents](https://updown.website/badge/cal.com/incidents.svg)](https://updown.website/site/cal.com/) <a href="https://updown.website/site/cal.com/"><img src="https://updown.website/badge/cal.com/incidents.svg" alt="Incidents"></a>
IPv4/IPv6 [![IPv4/IPv6](https://updown.website/badge/cal.com/ipv46.svg)](https://updown.website/site/cal.com/) <a href="https://updown.website/site/cal.com/"><img src="https://updown.website/badge/cal.com/ipv46.svg" alt="IPv4/IPv6"></a>
Site Health (24 h)
HTTP Response DNS Lookup Ping Up Down Reports Incident
Monitoring
Recent HTTP Checks (24 h)
Total Checks
9
Success Rate
100%
Avg Response
4873 ms
Min / Max
3429 / 10207 ms
Recent Checks
15:04 11:31
Time Status Code Response Agent Error
11:31:28 UP 200 3429 ms prod-local —
09:01:58 UP 200 3678 ms prod-local —
05:39:49 UP 200 3564 ms prod-local —
04:10:37 UP 200 3852 ms prod-local —
01:39:21 UP 200 10207 ms prod-local —
23:45:05 UP 200 4012 ms prod-local —
18:50:34 UP 200 3828 ms prod-local —
16:55:56 UP 200 3804 ms prod-local —
15:04:15 UP 200 7479 ms prod-local —
Incident History

No incidents recorded — all clear!

Community
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Service Checks (Banner Grab)

No service checks yet. The agent will banner-grab discovered open ports on the next deep cycle.

Security
SSL / TLS Certificate
86
days left
Valid
Apr 18, 2026 Jul 17, 2026
Issued → Expires
Subject commonName=cal.com
Issuer countryName=US, organizationName=Google Trust Services, commonName=WE1
Valid From 2026-04-18 14:11
Expires 2026-07-17 15:11
Serial Number E861CF76901BC618134E6554A95C413D
SHA-256 Fingerprint 4c:a8:3b:e8:6f:90:b5:3d:18:32:3a:cd:f6:d9:8d:1b:68:6f:f2:8a:a2:36:2c:03:3c:36:08:31:5e:95:4a:bd
Subject Alt Names cal.com external.cal.com
Last Checked 2026-04-22 11:31:28
Latest HTTP Response Details
Final URL https://cal.com/
Status Code 200
Response Time 3429 ms
Content Size 2248 KB (2.2 MB)
Content Type text/html
Server cloudflare
TLS Version TLSv1.3
TLS Cipher TLS_AES_256_GCM_SHA384
Redirects 0
Checked 2026-04-22 11:31:28
Email Security Posture
MX Records
SPF
Details v=spf1 include:_spf.google.com include:sendgrid.net -all
DMARC
Details v=DMARC1; p=quarantine; rua=mailto:b71127b2@mxtoolbox.dmarc-report.com; ruf=mailto:b71127b2@forensics.dmarc-report.com; fo=1
BIMI
MTA-STS
Strong
Overall
DNS & Network
DNS Intelligence (24h)
Avg Resolution
11.2 ms
Min / Max
4.2 / 33.3 ms
Record Types
7
Lookups (24h)
63
DNS Records
A
104.18.1.62 104.18.0.62
300s 12.2ms
AAAA
2606:4700::6812:13e 2606:4700::6812:3e
300s 5.4ms
MX
1 aspmx.l.google.com
5 alt1.aspmx.l.google.com
5 alt2.aspmx.l.google.com
10 alt3.aspmx.l.google.com
10 alt4.aspmx.l.google.com
300s 5.5ms
NS
carter.ns.cloudflare.com linda.ns.cloudflare.com
86400s 6.0ms
TXT
SPF (1)
v=spf1 include:_spf.google.com include:sendgrid.net -all
Domain Verification (4)
openai-domain-verification=dv-2vLkO8g4fGLTXFv0O86S4VGh
hubspot-developer-verification=MTUwNGIzOWYtYmYwMS00Y2IyLTg5YmEtNzEyZT… hubspot-developer-verification=MTUwNGIzOWYtYmYwMS00Y2IyLTg5YmEtNzEyZTU3NjczMGVj
google-site-verification=ERZRBFsAZod6YY2WsYOsXCN2QTXsLAkqPluhPAWZORY
apple-domain-verification=BWqXqkqcByIoJVFD
TXT Record (5)
MS=ms98316148
MS=ms52513678
MS=ms56097149
MS=ms14963960
asv=4a2ed4b7d84c58fa042be983b359aea7
299s 6.4ms
SOA
Primary NS
carter.ns.cloudflare.com
Admin
dns@cloudflare.com
Serial: 2402299003 Refresh: 2h Retry: 40m Expire: 7d Min TTL: 30m
1800s 5.2ms
CAA
Flag Tag Value
0 issuewild letsencrypt.org
0 issue digicert.com; cansignhttpexchanges=yes
0 issuewild ssl.com
0 issue letsencrypt.org
0 issuewild digicert.com; cansignhttpexchanges=yes
0 issuewild comodoca.com
0 issuewild pki.goog; cansignhttpexchanges=yes
0 issue amazon.com
0 issue sectigo.com
0 issue ssl.com
0 issue pki.goog; cansignhttpexchanges=yes
0 iodef mailto:bailey@cal.com
0 issue www.digicert.com
0 issue comodoca.com
299s 15.9ms
DNS Propagation Consistent
Resolver IPs Returned Response Time Status
Quad9 104.18.0.62 104.18.1.62 13.39ms
Google 104.18.0.62 104.18.1.62 16.92ms
AdGuard 104.18.0.62 104.18.1.62 29.0ms
OpenDNS 104.18.0.62 104.18.1.62 32.31ms
Cloudflare 104.18.0.62 104.18.1.62 2.79ms
WHOIS / Domain Registration
Registrar
GoDaddy.com, LLC
Registrant Organization
Domains By Proxy, LLC
Created
1997-05-16
Updated
2024-05-25
Expires
2034-05-17
Name Servers (WHOIS)
carter.ns.cloudflare.com linda.ns.cloudflare.com
Domain Status
clientDeleteProhibited clientRenewProhibited clientTransferProhibited clientUpdateProhibited
DNSSEC
Unsigned
Country
US
WHOIS Last Checked
2026-04-22 11:31
Resolution Time (A/AAAA recent)
01:39 11:31
Time Type Values TTL Resolution Nameserver
11:31:28 CAA 0 issuewild "letsencrypt.org" 0 issue "digicert.com; cansignhttpexchanges=yes" 0 issuewild "ssl.com" 0 issue "letsencrypt.org" 0 issuewild "digicert.com; cansignhttpexchanges=yes" 0 issuewild "comodoca.com" 0 issuewild "pki.goog; cansignhttpexchanges=yes" 0 issue "amazon.com" 0 issue "sectigo.com" 0 issue "ssl.com" 0 issue "pki.goog; cansignhttpexchanges=yes" 0 iodef "mailto:bailey@cal.com" 0 issue "www.digicert.com" 0 issue "comodoca.com" 299s 15.9 ms 10.89.0.1
11:31:28 SOA carter.ns.cloudflare.com dns.cloudflare.com 2402299003 10000 2400 604800 1800 1800s 5.2 ms 10.89.0.1
11:31:28 TXT
10 records openai-domain-verification=dv-2vLkO8g4fGLTXFv0O86…
openai-domain-verification=dv-2vLkO8g4fGLTXFv0O86S4VGh hubspot-developer-verification=MTUwNGIzOWYtYmYwMS00Y2IyLTg5YmEtNzEyZTU3NjczMGVj MS=ms98316148 MS=ms52513678 MS=ms56097149 MS=ms14963960 asv=4a2ed4b7d84c58fa042be983b359aea7 google-site-verification=ERZRBFsAZod6YY2WsYOsXCN2QTXsLAkqPluhPAWZORY apple-domain-verification=BWqXqkqcByIoJVFD v=spf1 include:_spf.google.com include:sendgrid.net -all
299s 6.4 ms 10.89.0.1
11:31:28 NS carter.ns.cloudflare.com linda.ns.cloudflare.com 86400s 6.0 ms 10.89.0.1
11:31:28 MX 1 aspmx.l.google.com 10 alt3.aspmx.l.google.com 10 alt4.aspmx.l.google.com 5 alt1.aspmx.l.google.com 5 alt2.aspmx.l.google.com 300s 5.5 ms 10.89.0.1
11:31:28 AAAA 2606:4700::6812:13e 2606:4700::6812:3e 300s 5.4 ms 10.89.0.1
11:31:28 A 104.18.1.62 104.18.0.62 300s 12.2 ms 10.89.0.1
09:01:58 CAA 0 issue "amazon.com" 0 iodef "mailto:bailey@cal.com" 0 issue "letsencrypt.org" 0 issue "www.digicert.com" 0 issue "ssl.com" 0 issue "sectigo.com" 0 issue "comodoca.com" 0 issuewild "letsencrypt.org" 0 issuewild "digicert.com; cansignhttpexchanges=yes" 0 issue "pki.goog; cansignhttpexchanges=yes" 0 issuewild "ssl.com" 0 issuewild "comodoca.com" 0 issue "digicert.com; cansignhttpexchanges=yes" 0 issuewild "pki.goog; cansignhttpexchanges=yes" 299s 7.7 ms 10.89.0.1
09:01:58 SOA carter.ns.cloudflare.com dns.cloudflare.com 2402299003 10000 2400 604800 1800 1800s 4.1 ms 10.89.0.1
09:01:58 TXT
10 records MS=ms52513678
MS=ms52513678 v=spf1 include:_spf.google.com include:sendgrid.net -all apple-domain-verification=BWqXqkqcByIoJVFD openai-domain-verification=dv-2vLkO8g4fGLTXFv0O86S4VGh asv=4a2ed4b7d84c58fa042be983b359aea7 hubspot-developer-verification=MTUwNGIzOWYtYmYwMS00Y2IyLTg5YmEtNzEyZTU3NjczMGVj MS=ms98316148 MS=ms56097149 google-site-verification=ERZRBFsAZod6YY2WsYOsXCN2QTXsLAkqPluhPAWZORY MS=ms14963960
299s 7.8 ms 10.89.0.1
09:01:58 NS carter.ns.cloudflare.com linda.ns.cloudflare.com 86400s 13.9 ms 10.89.0.1
09:01:58 MX 1 aspmx.l.google.com 10 alt3.aspmx.l.google.com 10 alt4.aspmx.l.google.com 5 alt1.aspmx.l.google.com 5 alt2.aspmx.l.google.com 300s 4.9 ms 10.89.0.1
09:01:58 AAAA 2606:4700::6812:3e 2606:4700::6812:13e 300s 4.4 ms 10.89.0.1
09:01:58 A 104.18.1.62 104.18.0.62 300s 14.1 ms 10.89.0.1
05:39:47 CAA 0 issuewild "digicert.com; cansignhttpexchanges=yes" 0 iodef "mailto:bailey@cal.com" 0 issue "pki.goog; cansignhttpexchanges=yes" 0 issue "ssl.com" 0 issue "sectigo.com" 0 issue "amazon.com" 0 issue "digicert.com; cansignhttpexchanges=yes" 0 issuewild "comodoca.com" 0 issuewild "pki.goog; cansignhttpexchanges=yes" 0 issue "letsencrypt.org" 0 issue "www.digicert.com" 0 issue "comodoca.com" 0 issuewild "letsencrypt.org" 0 issuewild "ssl.com" 299s 8.1 ms 10.89.0.1
05:39:47 SOA carter.ns.cloudflare.com dns.cloudflare.com 2402299003 10000 2400 604800 1800 1800s 5.9 ms 10.89.0.1
05:39:47 TXT
10 records v=spf1 include:_spf.google.com include:sendgrid.n…
v=spf1 include:_spf.google.com include:sendgrid.net -all google-site-verification=ERZRBFsAZod6YY2WsYOsXCN2QTXsLAkqPluhPAWZORY apple-domain-verification=BWqXqkqcByIoJVFD openai-domain-verification=dv-2vLkO8g4fGLTXFv0O86S4VGh MS=ms52513678 hubspot-developer-verification=MTUwNGIzOWYtYmYwMS00Y2IyLTg5YmEtNzEyZTU3NjczMGVj MS=ms14963960 MS=ms98316148 MS=ms56097149 asv=4a2ed4b7d84c58fa042be983b359aea7
299s 6.6 ms 10.89.0.1
05:39:47 NS linda.ns.cloudflare.com carter.ns.cloudflare.com 1519s 0.8 ms 10.89.0.1
05:39:47 MX 1 aspmx.l.google.com 10 alt3.aspmx.l.google.com 10 alt4.aspmx.l.google.com 5 alt1.aspmx.l.google.com 5 alt2.aspmx.l.google.com 300s 12.0 ms 10.89.0.1
05:39:47 AAAA 2606:4700::6812:3e 2606:4700::6812:13e 300s 14.0 ms 10.89.0.1
05:39:47 A 104.18.1.62 104.18.0.62 45s 5.2 ms 10.89.0.1
04:10:37 CAA 0 issuewild "comodoca.com" 0 issue "digicert.com; cansignhttpexchanges=yes" 0 issue "ssl.com" 0 issuewild "pki.goog; cansignhttpexchanges=yes" 0 issue "pki.goog; cansignhttpexchanges=yes" 0 issuewild "letsencrypt.org" 0 issue "letsencrypt.org" 0 issuewild "ssl.com" 0 issue "www.digicert.com" 0 iodef "mailto:bailey@cal.com" 0 issue "sectigo.com" 0 issue "comodoca.com" 0 issue "amazon.com" 0 issuewild "digicert.com; cansignhttpexchanges=yes" 299s 8.5 ms 10.89.0.1
04:10:37 SOA carter.ns.cloudflare.com dns.cloudflare.com 2402299003 10000 2400 604800 1800 1800s 5.4 ms 10.89.0.1
04:10:37 TXT
10 records v=spf1 include:_spf.google.com include:sendgrid.n…
v=spf1 include:_spf.google.com include:sendgrid.net -all MS=ms98316148 apple-domain-verification=BWqXqkqcByIoJVFD openai-domain-verification=dv-2vLkO8g4fGLTXFv0O86S4VGh asv=4a2ed4b7d84c58fa042be983b359aea7 MS=ms56097149 hubspot-developer-verification=MTUwNGIzOWYtYmYwMS00Y2IyLTg5YmEtNzEyZTU3NjczMGVj MS=ms14963960 MS=ms52513678 google-site-verification=ERZRBFsAZod6YY2WsYOsXCN2QTXsLAkqPluhPAWZORY
299s 8.5 ms 10.89.0.1
04:10:37 NS carter.ns.cloudflare.com linda.ns.cloudflare.com 86400s 4.3 ms 10.89.0.1
04:10:37 MX 1 aspmx.l.google.com 10 alt3.aspmx.l.google.com 10 alt4.aspmx.l.google.com 5 alt1.aspmx.l.google.com 5 alt2.aspmx.l.google.com 300s 6.2 ms 10.89.0.1
04:10:36 AAAA 2606:4700::6812:3e 2606:4700::6812:13e 300s 5.4 ms 10.89.0.1
04:10:36 A 104.18.1.62 104.18.0.62 300s 6.6 ms 10.89.0.1
01:39:20 CAA 0 issuewild "comodoca.com" 0 issue "pki.goog; cansignhttpexchanges=yes" 0 issue "letsencrypt.org" 0 issue "amazon.com" 0 issuewild "ssl.com" 0 issuewild "digicert.com; cansignhttpexchanges=yes" 0 issuewild "letsencrypt.org" 0 issue "www.digicert.com" 0 issue "sectigo.com" 0 issuewild "pki.goog; cansignhttpexchanges=yes" 0 issue "digicert.com; cansignhttpexchanges=yes" 0 issue "ssl.com" 0 issue "comodoca.com" 0 iodef "mailto:bailey@cal.com" 299s 22.2 ms 10.89.0.1
01:39:20 SOA carter.ns.cloudflare.com dns.cloudflare.com 2402299003 10000 2400 604800 1800 1800s 17.3 ms 10.89.0.1
01:39:20 TXT
10 records MS=ms14963960
MS=ms14963960 MS=ms56097149 v=spf1 include:_spf.google.com include:sendgrid.net -all asv=4a2ed4b7d84c58fa042be983b359aea7 MS=ms98316148 openai-domain-verification=dv-2vLkO8g4fGLTXFv0O86S4VGh apple-domain-verification=BWqXqkqcByIoJVFD hubspot-developer-verification=MTUwNGIzOWYtYmYwMS00Y2IyLTg5YmEtNzEyZTU3NjczMGVj google-site-verification=ERZRBFsAZod6YY2WsYOsXCN2QTXsLAkqPluhPAWZORY MS=ms52513678
299s 20.2 ms 10.89.0.1
01:39:20 NS carter.ns.cloudflare.com linda.ns.cloudflare.com 21600s 18.8 ms 10.89.0.1
01:39:20 MX 1 aspmx.l.google.com 5 alt2.aspmx.l.google.com 5 alt1.aspmx.l.google.com 10 alt4.aspmx.l.google.com 10 alt3.aspmx.l.google.com 300s 21.0 ms 10.89.0.1
01:39:20 AAAA 2606:4700::6812:3e 2606:4700::6812:13e 300s 20.9 ms 10.89.0.1
01:39:20 A 104.18.0.62 104.18.1.62 300s 20.9 ms 10.89.0.1
23:45:03 CAA 0 issue "comodoca.com" 0 issue "pki.goog; cansignhttpexchanges=yes" 0 issue "letsencrypt.org" 0 issuewild "ssl.com" 0 issue "ssl.com" 0 issue "sectigo.com" 0 issuewild "comodoca.com" 0 issuewild "pki.goog; cansignhttpexchanges=yes" 0 iodef "mailto:bailey@cal.com" 0 issue "www.digicert.com" 0 issue "amazon.com" 0 issue "digicert.com; cansignhttpexchanges=yes" 0 issuewild "digicert.com; cansignhttpexchanges=yes" 0 issuewild "letsencrypt.org" 299s 7.6 ms 10.89.0.1
23:45:03 SOA carter.ns.cloudflare.com dns.cloudflare.com 2402299003 10000 2400 604800 1800 1800s 4.3 ms 10.89.0.1
23:45:03 TXT
10 records openai-domain-verification=dv-2vLkO8g4fGLTXFv0O86…
openai-domain-verification=dv-2vLkO8g4fGLTXFv0O86S4VGh MS=ms52513678 hubspot-developer-verification=MTUwNGIzOWYtYmYwMS00Y2IyLTg5YmEtNzEyZTU3NjczMGVj v=spf1 include:_spf.google.com include:sendgrid.net -all MS=ms98316148 apple-domain-verification=BWqXqkqcByIoJVFD google-site-verification=ERZRBFsAZod6YY2WsYOsXCN2QTXsLAkqPluhPAWZORY MS=ms14963960 MS=ms56097149 asv=4a2ed4b7d84c58fa042be983b359aea7
299s 8.0 ms 10.89.0.1
23:45:03 NS carter.ns.cloudflare.com linda.ns.cloudflare.com 86400s 5.1 ms 10.89.0.1
23:45:03 MX 1 aspmx.l.google.com 10 alt3.aspmx.l.google.com 10 alt4.aspmx.l.google.com 5 alt1.aspmx.l.google.com 5 alt2.aspmx.l.google.com 300s 6.6 ms 10.89.0.1
23:45:03 AAAA 2606:4700::6812:13e 2606:4700::6812:3e 300s 5.0 ms 10.89.0.1
23:45:03 A 104.18.1.62 104.18.0.62 300s 6.5 ms 10.89.0.1
18:50:32 CAA 0 issue "sectigo.com" 0 issuewild "pki.goog; cansignhttpexchanges=yes" 0 issue "comodoca.com" 0 issuewild "letsencrypt.org" 0 issue "pki.goog; cansignhttpexchanges=yes" 0 issuewild "ssl.com" 0 issuewild "digicert.com; cansignhttpexchanges=yes" 0 issue "ssl.com" 0 iodef "mailto:bailey@cal.com" 0 issue "digicert.com; cansignhttpexchanges=yes" 0 issue "letsencrypt.org" 0 issuewild "comodoca.com" 0 issue "amazon.com" 0 issue "www.digicert.com" 299s 7.3 ms 10.89.0.1
18:50:32 SOA carter.ns.cloudflare.com dns.cloudflare.com 2402281093 10000 2400 604800 1800 1800s 5.9 ms 10.89.0.1
18:50:32 TXT
10 records apple-domain-verification=BWqXqkqcByIoJVFD
apple-domain-verification=BWqXqkqcByIoJVFD MS=ms98316148 asv=4a2ed4b7d84c58fa042be983b359aea7 MS=ms52513678 google-site-verification=ERZRBFsAZod6YY2WsYOsXCN2QTXsLAkqPluhPAWZORY MS=ms56097149 MS=ms14963960 v=spf1 include:_spf.google.com include:sendgrid.net -all openai-domain-verification=dv-2vLkO8g4fGLTXFv0O86S4VGh hubspot-developer-verification=MTUwNGIzOWYtYmYwMS00Y2IyLTg5YmEtNzEyZTU3NjczMGVj
299s 7.9 ms 10.89.0.1
18:50:32 NS linda.ns.cloudflare.com carter.ns.cloudflare.com 471s 1.0 ms 10.89.0.1
18:50:32 MX 1 aspmx.l.google.com 10 alt3.aspmx.l.google.com 10 alt4.aspmx.l.google.com 5 alt1.aspmx.l.google.com 5 alt2.aspmx.l.google.com 300s 5.8 ms 10.89.0.1
18:50:32 AAAA 2606:4700::6812:3e 2606:4700::6812:13e 91s 4.2 ms 10.89.0.1
18:50:32 A 104.18.1.62 104.18.0.62 300s 13.6 ms 10.89.0.1
16:55:54 CAA 0 issue "letsencrypt.org" 0 issue "sectigo.com" 0 issue "amazon.com" 0 issue "www.digicert.com" 0 issuewild "pki.goog; cansignhttpexchanges=yes" 0 issue "comodoca.com" 0 iodef "mailto:bailey@cal.com" 0 issuewild "digicert.com; cansignhttpexchanges=yes" 0 issuewild "comodoca.com" 0 issuewild "ssl.com" 0 issue "pki.goog; cansignhttpexchanges=yes" 0 issue "ssl.com" 0 issuewild "letsencrypt.org" 0 issue "digicert.com; cansignhttpexchanges=yes" 299s 9.1 ms 10.89.0.1
Open Ports 18
Open Ports
18
IPs Scanned
18
Port Protocol Service IP Address Status Latency Banner
80 TCP http 104.18.1.62 Open 2.1 ms —
80 TCP http 2606:4700::6812:3e Open 3.1 ms —
443 TCP https 2606:4700::6812:3e Open 3.0 ms —
443 TCP https 104.18.1.62 Open 1.8 ms —
2082 TCP cpanel 104.18.1.62 Open 1.8 ms —
2082 TCP cpanel 2606:4700::6812:3e Open 3.2 ms —
2083 TCP cpanel-ssl 104.18.1.62 Open 4.2 ms —
2083 TCP cpanel-ssl 2606:4700::6812:3e Open 2.7 ms —
2086 TCP whm 104.18.1.62 Open 2.6 ms —
2086 TCP whm 2606:4700::6812:3e Open 3.0 ms —
2087 TCP whm-ssl 2606:4700::6812:3e Open 2.7 ms —
2087 TCP whm-ssl 104.18.1.62 Open 3.6 ms —
8080 TCP http-alt 104.18.1.62 Open 2.1 ms —
8080 TCP http-alt 2606:4700::6812:3e Open 3.6 ms —
8443 TCP https-alt 104.18.1.62 Open 3.1 ms —
8443 TCP https-alt 2606:4700::6812:3e Open 3.1 ms —
8880 TCP cddbp-alt 2606:4700::6812:3e Open 2.9 ms —
8880 TCP cddbp-alt 104.18.1.62 Open 2.3 ms —
Active IP Addresses
IP Address Version Reverse DNS CIDR Country City ASN Reputation First Seen Last DNS Hits Misses Uptime % Avg Latency
2606:4700::6812:3e IPv6 — 2606:4700::/48 — — AS13335 Cloudflare, Inc. Clean 2026-04-19 18:18 2026-04-22 11:31 9 0 100.0% 4.1 ms
2606:4700::6812:13e IPv6 — 2606:4700::/48 — — AS13335 Cloudflare, Inc. Clean 2026-04-19 18:18 2026-04-22 11:31 9 0 100.0% 4.1 ms
104.18.1.62 IPv4 — 104.18.1.0/24 — — AS13335 Cloudflare, Inc. Clean 2026-04-19 18:18 2026-04-22 11:31 9 0 100.0% 4.3 ms
104.18.0.62 IPv4 — 104.18.0.0/24 — — AS13335 Cloudflare, Inc. Clean 2026-04-19 18:18 2026-04-22 11:31 9 0 100.0% 4.2 ms
Technology
Technology Stack 19 detected
HTTP/2
HTTP/3 (QUIC)
19
Technologies
CDN 1
90%
CF-Ray header present
DNS 1
85%
NS record: carter.ns.cloudflare.com
Email 5
85%
MX record: 1 aspmx.l.google.com
85%
SPF include: v=spf1 include:_spf.google.com include:sendgrid.net -all
SPF Record
85%
TXT SPF: v=spf1 include:_spf.google.com include:sendgrid.net -all
85%
TXT verification: v=spf1 include:_spf.google.com include:sendgrid.net -all
85%
SPF include: v=spf1 include:_spf.google.com include:sendgrid.net -all
Library 1
70%
Yjs CRDT
Marketing 2
85%
TXT verification: hubspot-developer-verification=MTUwNGIzOWYtYmYwMS00Y2IyLTg5Ym…
85%
TXT verification: hubspot-developer-verification=MTUwNGIzOWYtYmYwMS00Y2IyLTg5Ym…
Platform 1
70%
Framer
Scheduling 1
70%
Cal.com embed
Security 1
90%
Cloudflare bot cookie
Service 1
70%
Google Fonts files
Social 2
70%
Open Graph meta tags
70%
Twitter Card meta
Verification 3
85%
TXT verification: apple-domain-verification=BWqXqkqcByIoJVFD
85%
TXT verification: google-site-verification=ERZRBFsAZod6YY2WsYOsXCN2QTXsLAkqPluh…
85%
TXT verification: MS=ms98316148
Technology Provider 1 tech · 1 sites

This domain provides technology used by other monitored sites.

Cal.com
improvmx.com
Discovery
Crawl Configuration
robots.txt No sitemap
robots.txt 4 disallow · 2 allow · 1 agent
User-Agent Directive Path / Value
* Disallow /sandbox
* Disallow /api
* Disallow /settings
* Disallow /settings/my-account
* Allow /api/social/og/image
* Allow /api/app-store/ 
User-agent: *
Disallow: /sandbox
Disallow: /api
Disallow: /settings
Disallow: /settings/my-account

# Specifically allow access to OG Image api, otherwise eg Twitter won't render these images.
Allow: /api/social/og/image
# Specifically allow access to api/app-store to allow search engines to fetch assets
Allow: /api/app-store/
Sitemap

No sitemap discovered.
Checked /robots.txt, /sitemap.xml, and /sitemap_index.xml

Discovered Sub-domains 20
Wordlist Brute-force 19 Link Scan 1
Subdomain Source Status Code Response IPs Last Checked
ai.cal.com Wordlist Brute-force Pending — — — Never
api.cal.com Wordlist Brute-force Pending — — — Never
app.cal.com Wordlist Brute-force UP 200 367 ms 2606:4700::6812:3e, 2606:4700::6812:13e 2 days, 14 hours ago
auth.cal.com Wordlist Brute-force Pending — — — Never
canary.cal.com Wordlist Brute-force Pending — — — Never
chat.cal.com Wordlist Brute-force Pending — — — Never
demo.cal.com Wordlist Brute-force Pending — — — Never
docs.cal.com Wordlist Brute-force Pending — — — Never
ee.cal.com Wordlist Brute-force Pending — — — Never
eu.cal.com Wordlist Brute-force Pending — — — Never
go.cal.com Wordlist Brute-force UP 200 225 ms — 2 days, 14 hours ago
handbook.cal.com Wordlist Brute-force Pending — — — Never
i.cal.com Link Scan UP 200 459 ms 2606:4700::6812:3e, 2606:4700::6812:13e 2 days, 14 hours ago
it.cal.com Wordlist Brute-force Pending — — — Never
maps.cal.com Wordlist Brute-force Pending — — — Never
quote.cal.com Wordlist Brute-force Pending — — — Never
status.cal.com Wordlist Brute-force UP 200 626 ms 2606:4700::6812:13e, 2606:4700::6812:3e 2 days, 13 hours ago
testing.cal.com Wordlist Brute-force Pending — — — Never
vercel.cal.com Wordlist Brute-force Pending — — — Never
www.cal.com Wordlist Brute-force Pending — — — Never