customer.io B

24 hours
100.00%
7 days
100.00%
30 days
100.00%
IPv4 / IPv6
1 0
SSL Certificate
28d
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/customer.io/status.svg)](https://updown.website/site/customer.io/) <a href="https://updown.website/site/customer.io/"><img src="https://updown.website/badge/customer.io/status.svg" alt="Status"></a>
Uptime [![Uptime](https://updown.website/badge/customer.io/uptime.svg)](https://updown.website/site/customer.io/) <a href="https://updown.website/site/customer.io/"><img src="https://updown.website/badge/customer.io/uptime.svg" alt="Uptime"></a>
Response Time [![Response Time](https://updown.website/badge/customer.io/response-time.svg)](https://updown.website/site/customer.io/) <a href="https://updown.website/site/customer.io/"><img src="https://updown.website/badge/customer.io/response-time.svg" alt="Response Time"></a>
SSL [![SSL](https://updown.website/badge/customer.io/ssl.svg)](https://updown.website/site/customer.io/) <a href="https://updown.website/site/customer.io/"><img src="https://updown.website/badge/customer.io/ssl.svg" alt="SSL"></a>
Performance [![Performance](https://updown.website/badge/customer.io/cwv.svg)](https://updown.website/site/customer.io/) <a href="https://updown.website/site/customer.io/"><img src="https://updown.website/badge/customer.io/cwv.svg" alt="Performance"></a>
Accessibility [![Accessibility](https://updown.website/badge/customer.io/cwv.svg?category=accessibility)](https://updown.website/site/customer.io/) <a href="https://updown.website/site/customer.io/"><img src="https://updown.website/badge/customer.io/cwv.svg?category=accessibility" alt="Accessibility"></a>
SEO [![SEO](https://updown.website/badge/customer.io/cwv.svg?category=seo)](https://updown.website/site/customer.io/) <a href="https://updown.website/site/customer.io/"><img src="https://updown.website/badge/customer.io/cwv.svg?category=seo" alt="SEO"></a>
Security Headers [![Security Headers](https://updown.website/badge/customer.io/security-headers.svg)](https://updown.website/site/customer.io/) <a href="https://updown.website/site/customer.io/"><img src="https://updown.website/badge/customer.io/security-headers.svg" alt="Security Headers"></a>
Uptime 24h [![Uptime 24h](https://updown.website/badge/customer.io/uptime.svg?period=24h)](https://updown.website/site/customer.io/) <a href="https://updown.website/site/customer.io/"><img src="https://updown.website/badge/customer.io/uptime.svg?period=24h" alt="Uptime 24h"></a>
Incidents [![Incidents](https://updown.website/badge/customer.io/incidents.svg)](https://updown.website/site/customer.io/) <a href="https://updown.website/site/customer.io/"><img src="https://updown.website/badge/customer.io/incidents.svg" alt="Incidents"></a>
IPv4/IPv6 [![IPv4/IPv6](https://updown.website/badge/customer.io/ipv46.svg)](https://updown.website/site/customer.io/) <a href="https://updown.website/site/customer.io/"><img src="https://updown.website/badge/customer.io/ipv46.svg" alt="IPv4/IPv6"></a>
Site Health (24 h)
HTTP Response DNS Lookup Ping Up Down Reports Incident
Active Incidents (1)
SSL cert for customer.io expires in 28 days 9m 35s
Started 2026-04-22 11:48:06 · 1 consecutive failures
Monitoring
Recent HTTP Checks (24 h)
Total Checks
8
Success Rate
100%
Avg Response
304 ms
Min / Max
81 / 1429 ms
Recent Checks
16:41 11:48
Time Status Code Response Agent Error
11:48:06 UP 200 81 ms prod-local —
09:10:06 UP 200 139 ms prod-local —
06:44:49 UP 200 103 ms prod-local —
04:45:49 UP 200 1429 ms prod-local —
01:36:16 UP 200 98 ms prod-local —
22:54:30 UP 200 88 ms prod-local —
17:50:31 UP 200 219 ms prod-local —
16:41:01 UP 200 270 ms prod-local —
Incident History
Status Type Title Started Duration Failures
ACTIVE SSL Certificate Expiring SSL cert for customer.io expires in 28 days 2026-04-22 11:48 9m 35s 1
RESOLVED SSL Certificate Expiring SSL cert for customer.io expires in 28 days 2026-04-22 09:10 2h 38m 1
RESOLVED SSL Certificate Expiring SSL cert for customer.io expires in 29 days 2026-04-22 06:44 2h 25m 1
RESOLVED SSL Certificate Expiring SSL cert for customer.io expires in 29 days 2026-04-22 04:45 1h 58m 1
RESOLVED SSL Certificate Expiring SSL cert for customer.io expires in 29 days 2026-04-22 01:36 3h 9m 1
RESOLVED SSL Certificate Expiring SSL cert for customer.io expires in 29 days 2026-04-21 22:54 2h 41m 1
RESOLVED SSL Certificate Expiring SSL cert for customer.io expires in 29 days 2026-04-21 17:50 5h 3m 1
RESOLVED SSL Certificate Expiring SSL cert for customer.io expires in 29 days 2026-04-21 16:41 1h 9m 1
RESOLVED SSL Certificate Expiring SSL cert for customer.io expires in 29 days 2026-04-21 11:40 5h 0m 1
RESOLVED SSL Certificate Expiring SSL cert for customer.io expires in 29 days 2026-04-21 08:45 2h 55m 1
RESOLVED SSL Certificate Expiring SSL cert for customer.io expires in 29 days 2026-04-21 07:34 1h 10m 1
RESOLVED SSL Certificate Expiring SSL cert for customer.io expires in 30 days 2026-04-21 05:24 2h 9m 1
RESOLVED SSL Certificate Expiring SSL cert for customer.io expires in 30 days 2026-04-21 03:11 2h 13m 1
RESOLVED SSL Certificate Expiring SSL cert for customer.io expires in 30 days 2026-04-21 00:27 2h 43m 1
RESOLVED SSL Certificate Expiring SSL cert for customer.io expires in 30 days 2026-04-20 22:05 2h 22m 1
RESOLVED SSL Certificate Expiring SSL cert for customer.io expires in 30 days 2026-04-20 20:55 1h 9m 1
RESOLVED SSL Certificate Expiring SSL cert for customer.io expires in 30 days 2026-04-20 19:44 1h 10m 1
RESOLVED SSL Certificate Expiring SSL cert for customer.io expires in 30 days 2026-04-20 17:47 1h 57m 1
RESOLVED SSL Certificate Expiring SSL cert for customer.io expires in 30 days 2026-04-20 15:11 2h 35m 1
RESOLVED SSL Certificate Expiring SSL cert for customer.io expires in 30 days 2026-04-20 14:03 1h 8m 1
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Service Checks (Banner Grab)
2 up 0 down
Status Port Service Version IP Banner Latency Checked
80 http Vercel 76.76.21.21 HTTP/1.0 308 Permanent Redirect Content-Type: text/plain Location: https://cu… 2.9 ms 7 hours ago
443 https — 76.76.21.21 — 503.3 ms 7 hours ago
Security
SSL / TLS Certificate
28
days left
Expiring Soon
Feb 20, 2026 May 21, 2026
Issued → Expires
Subject commonName=customer.io
Issuer countryName=US, organizationName=Let's Encrypt, commonName=R13
Valid From 2026-02-20 07:10
Expires 2026-05-21 07:09
Serial Number 06DAB269211F1F72142D180C3C864A06DEA7
SHA-256 Fingerprint f8:05:05:9b:a6:b0:c8:5b:0a:84:08:2c:0a:f6:3b:2a:d9:18:cd:a9:f4:ac:ae:be:cd:5e:f8:88:c7:e3:04:31
Subject Alt Names customer.io
Last Checked 2026-04-22 11:48:06
Latest HTTP Response Details
Final URL https://customer.io/
Status Code 200
Response Time 81 ms
Content Size 367 KB (366.7 KB)
Content Type text/html; charset=utf-8
Server Vercel
TLS Version TLSv1.3
TLS Cipher TLS_AES_128_GCM_SHA256
Redirects 0
Checked 2026-04-22 11:48:06
Email Security Posture
MX Records
SPF
Details v=spf1 include:helpscoutemail.com include:_spf.google.com include:servers.mcsv.net include:amazonses.com include:mail.zendesk.com ~all
DMARC
Details v=DMARC1; p=quarantine; sp=quarantine; rua=mailto:re+a0b40970b63a@inbound.dmarcdigests.com,mailto:dmarc@rp.laneful.net; aspf=r; pct=100
BIMI
MTA-STS
Strong
Overall
DNS & Network
DNS Intelligence (24h)
Avg Resolution
11.6 ms
Min / Max
4.1 / 32.0 ms
Record Types
5
Lookups (24h)
48
DNS Records
A
76.76.21.21
60s 11.9ms
MX
1 aspmx.l.google.com
5 alt1.aspmx.l.google.com
5 alt2.aspmx.l.google.com
10 aspmx2.googlemail.com
10 aspmx3.googlemail.com
60s 5.7ms
NS
ns-1181.awsdns-19.org ns-1893.awsdns-44.co.uk ns-499.awsdns-62.com ns-618.awsdns-13.net
170229s 3.5ms
TXT
SPF (1)
v=spf1 include:helpscoutemail.com include:_spf.google.com include:ser… v=spf1 include:helpscoutemail.com include:_spf.google.com include:servers.mcsv.net include:amazonses.com include:mail.zendesk.com ~all
Domain Verification (21)
facebook-domain-verification=62g2j16g5qkvf38ekdrtxiez0bsqei
anthropic-domain-verification-h4s30h=RXWAAyC4VDThCnWjaprWPkUET
jetbrains-domain-verification=rdxczp2suguw502vrx4cqksy
notion-domain-verification=DHmczCmyAqc8TGp6DPbfWBxLb9lSgvPv7wSOiiJfAJK
cursor-domain-verification-m2k2b5=XfoK2FPHAUqoNHiCpHtqY2fXP
google-site-verification=HbwteWh_QF6HnNCDLL_1X_GRwURBkYEdFAVM00rxf_k
ps-cd-verification=6d210b55-ec4b-4105-a1d7-7a73c78619fd
zapier-domain-verification-challenge=3373ff99-18e1-4a49-8e81-67d830eb… zapier-domain-verification-challenge=3373ff99-18e1-4a49-8e81-67d830eb392b
linear-domain-verification=wetdfvhymmbh
sinch-domain-verification=77675a95-7309-44bf-9483-5f9020edc778
miro-verification=89a8ecb5df4f4febc758723fcfabd5af59041414
loom-site-verification=4dac5f34468e49a299444383229599d5
airtable-verification=a839ac25097d07e90b6725421494b506
slack-domain-verification=XRnWU545ZVlzHN85aeTWX7xzunEJk8Ouav9KjN7Q
1password-site-verification=NKRDO4YCMBDD7KNUO4PN6RZCA4
openai-domain-verification=dv-icOHzM0IplqgpTNoO3nJaRCX
hubspot-developer-verification=NDkzOTIwZWMtMDVkNS00YTAzLThlMDQtZDJmYz… hubspot-developer-verification=NDkzOTIwZWMtMDVkNS00YTAzLThlMDQtZDJmYzVjNzc5Zjgw
docusign=48e7526a-7539-4ad0-b672-7a94c3a20c29
have-i-been-pwned-verification=a9d6f2edb8654dcfe04e310cdc9a000a
google-site-verification=gsxlVNPtm1JCawWVNMCOVuWLK9lhzdr4Dofz-V-lovo
mixpanel-domain-verify=d5c389d5-df00-473a-8263-3932c19beecb
TXT Record (3)
OSSRH-70026
MS=ms56053829
asv=8738dd37f3c5a1368cba93d24b4a1e17
59s 34.9ms
SOA
Primary NS
ns-1181.awsdns-19.org
Admin
awsdns-hostmaster@amazon.com
Serial: 1 Refresh: 2h Retry: 15m Expire: 14d Min TTL: 1d
900s 28.9ms
DNS Propagation Consistent
Resolver IPs Returned Response Time Status
Quad9 76.76.21.21 2.8ms
Google 76.76.21.21 31.81ms
AdGuard 76.76.21.21 266.27ms
OpenDNS 76.76.21.21 72.53ms
Cloudflare 76.76.21.21 6.1ms
WHOIS / Domain Registration
Registrar
1API GmbH
Created
2011-10-26
Updated
2025-11-26
Expires
2026-10-26
Name Servers (WHOIS)
ns-1181.awsdns-19.org ns-1893.awsdns-44.co.uk ns-499.awsdns-62.com ns-618.awsdns-13.net
Domain Status
clientTransferProhibited
DNSSEC
—
WHOIS Last Checked
2026-04-21 11:40
Resolution Time (A/AAAA recent)
01:36 11:48
Time Type Values TTL Resolution Nameserver
11:48:05 SOA ns-1181.awsdns-19.org awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400 900s 28.9 ms 10.89.0.1
11:48:05 TXT
25 records facebook-domain-verification=62g2j16g5qkvf38ekdrt…
facebook-domain-verification=62g2j16g5qkvf38ekdrtxiez0bsqei anthropic-domain-verification-h4s30h=RXWAAyC4VDThCnWjaprWPkUET jetbrains-domain-verification=rdxczp2suguw502vrx4cqksy notion-domain-verification=DHmczCmyAqc8TGp6DPbfWBxLb9lSgvPv7wSOiiJfAJK cursor-domain-verification-m2k2b5=XfoK2FPHAUqoNHiCpHtqY2fXP google-site-verification=HbwteWh_QF6HnNCDLL_1X_GRwURBkYEdFAVM00rxf_k ps-cd-verification=6d210b55-ec4b-4105-a1d7-7a73c78619fd zapier-domain-verification-challenge=3373ff99-18e1-4a49-8e81-67d830eb392b linear-domain-verification=wetdfvhymmbh OSSRH-70026 sinch-domain-verification=77675a95-7309-44bf-9483-5f9020edc778 miro-verification=89a8ecb5df4f4febc758723fcfabd5af59041414 loom-site-verification=4dac5f34468e49a299444383229599d5 airtable-verification=a839ac25097d07e90b6725421494b506 MS=ms56053829 slack-domain-verification=XRnWU545ZVlzHN85aeTWX7xzunEJk8Ouav9KjN7Q 1password-site-verification=NKRDO4YCMBDD7KNUO4PN6RZCA4 openai-domain-verification=dv-icOHzM0IplqgpTNoO3nJaRCX v=spf1 include:helpscoutemail.com include:_spf.google.com include:servers.mcsv.net include:amazonses.com include:mail.z… hubspot-developer-verification=NDkzOTIwZWMtMDVkNS00YTAzLThlMDQtZDJmYzVjNzc5Zjgw docusign=48e7526a-7539-4ad0-b672-7a94c3a20c29 have-i-been-pwned-verification=a9d6f2edb8654dcfe04e310cdc9a000a google-site-verification=gsxlVNPtm1JCawWVNMCOVuWLK9lhzdr4Dofz-V-lovo mixpanel-domain-verify=d5c389d5-df00-473a-8263-3932c19beecb asv=8738dd37f3c5a1368cba93d24b4a1e17
59s 34.9 ms 10.89.0.1
11:48:05 NS ns-1181.awsdns-19.org ns-1893.awsdns-44.co.uk ns-499.awsdns-62.com ns-618.awsdns-13.net 170229s 3.5 ms 10.89.0.1
11:48:05 MX 1 aspmx.l.google.com 10 aspmx2.googlemail.com 10 aspmx3.googlemail.com 5 alt1.aspmx.l.google.com 5 alt2.aspmx.l.google.com 60s 5.7 ms 10.89.0.1
11:48:05 AAAA — — 10.8 ms —
11:48:05 A 76.76.21.21 60s 11.9 ms 10.89.0.1
09:10:05 SOA ns-1181.awsdns-19.org awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400 900s 30.1 ms 10.89.0.1
09:10:05 TXT
25 records have-i-been-pwned-verification=a9d6f2edb8654dcfe0…
have-i-been-pwned-verification=a9d6f2edb8654dcfe04e310cdc9a000a MS=ms56053829 google-site-verification=gsxlVNPtm1JCawWVNMCOVuWLK9lhzdr4Dofz-V-lovo hubspot-developer-verification=NDkzOTIwZWMtMDVkNS00YTAzLThlMDQtZDJmYzVjNzc5Zjgw sinch-domain-verification=77675a95-7309-44bf-9483-5f9020edc778 zapier-domain-verification-challenge=3373ff99-18e1-4a49-8e81-67d830eb392b cursor-domain-verification-m2k2b5=XfoK2FPHAUqoNHiCpHtqY2fXP notion-domain-verification=DHmczCmyAqc8TGp6DPbfWBxLb9lSgvPv7wSOiiJfAJK asv=8738dd37f3c5a1368cba93d24b4a1e17 1password-site-verification=NKRDO4YCMBDD7KNUO4PN6RZCA4 v=spf1 include:helpscoutemail.com include:_spf.google.com include:servers.mcsv.net include:amazonses.com include:mail.z… jetbrains-domain-verification=rdxczp2suguw502vrx4cqksy anthropic-domain-verification-h4s30h=RXWAAyC4VDThCnWjaprWPkUET slack-domain-verification=XRnWU545ZVlzHN85aeTWX7xzunEJk8Ouav9KjN7Q OSSRH-70026 miro-verification=89a8ecb5df4f4febc758723fcfabd5af59041414 airtable-verification=a839ac25097d07e90b6725421494b506 facebook-domain-verification=62g2j16g5qkvf38ekdrtxiez0bsqei google-site-verification=HbwteWh_QF6HnNCDLL_1X_GRwURBkYEdFAVM00rxf_k ps-cd-verification=6d210b55-ec4b-4105-a1d7-7a73c78619fd docusign=48e7526a-7539-4ad0-b672-7a94c3a20c29 openai-domain-verification=dv-icOHzM0IplqgpTNoO3nJaRCX linear-domain-verification=wetdfvhymmbh loom-site-verification=4dac5f34468e49a299444383229599d5 mixpanel-domain-verify=d5c389d5-df00-473a-8263-3932c19beecb
59s 88.5 ms 10.89.0.1
09:10:05 NS ns-1181.awsdns-19.org ns-1893.awsdns-44.co.uk ns-499.awsdns-62.com ns-618.awsdns-13.net 164759s 4.7 ms 10.89.0.1
09:10:05 MX 1 aspmx.l.google.com 10 aspmx2.googlemail.com 10 aspmx3.googlemail.com 5 alt1.aspmx.l.google.com 5 alt2.aspmx.l.google.com 60s 5.1 ms 10.89.0.1
09:10:05 AAAA — — 12.0 ms —
09:10:05 A 76.76.21.21 60s 4.6 ms 10.89.0.1
06:44:48 SOA ns-1181.awsdns-19.org awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400 900s 12.5 ms 10.89.0.1
06:44:48 TXT
25 records notion-domain-verification=DHmczCmyAqc8TGp6DPbfWB…
notion-domain-verification=DHmczCmyAqc8TGp6DPbfWBxLb9lSgvPv7wSOiiJfAJK have-i-been-pwned-verification=a9d6f2edb8654dcfe04e310cdc9a000a docusign=48e7526a-7539-4ad0-b672-7a94c3a20c29 miro-verification=89a8ecb5df4f4febc758723fcfabd5af59041414 mixpanel-domain-verify=d5c389d5-df00-473a-8263-3932c19beecb linear-domain-verification=wetdfvhymmbh OSSRH-70026 openai-domain-verification=dv-icOHzM0IplqgpTNoO3nJaRCX hubspot-developer-verification=NDkzOTIwZWMtMDVkNS00YTAzLThlMDQtZDJmYzVjNzc5Zjgw loom-site-verification=4dac5f34468e49a299444383229599d5 google-site-verification=gsxlVNPtm1JCawWVNMCOVuWLK9lhzdr4Dofz-V-lovo ps-cd-verification=6d210b55-ec4b-4105-a1d7-7a73c78619fd 1password-site-verification=NKRDO4YCMBDD7KNUO4PN6RZCA4 anthropic-domain-verification-h4s30h=RXWAAyC4VDThCnWjaprWPkUET jetbrains-domain-verification=rdxczp2suguw502vrx4cqksy facebook-domain-verification=62g2j16g5qkvf38ekdrtxiez0bsqei airtable-verification=a839ac25097d07e90b6725421494b506 sinch-domain-verification=77675a95-7309-44bf-9483-5f9020edc778 zapier-domain-verification-challenge=3373ff99-18e1-4a49-8e81-67d830eb392b cursor-domain-verification-m2k2b5=XfoK2FPHAUqoNHiCpHtqY2fXP asv=8738dd37f3c5a1368cba93d24b4a1e17 google-site-verification=HbwteWh_QF6HnNCDLL_1X_GRwURBkYEdFAVM00rxf_k v=spf1 include:helpscoutemail.com include:_spf.google.com include:servers.mcsv.net include:amazonses.com include:mail.z… slack-domain-verification=XRnWU545ZVlzHN85aeTWX7xzunEJk8Ouav9KjN7Q MS=ms56053829
59s 34.2 ms 10.89.0.1
06:44:48 NS ns-1181.awsdns-19.org ns-1893.awsdns-44.co.uk ns-499.awsdns-62.com ns-618.awsdns-13.net 172800s 4.5 ms 10.89.0.1
06:44:48 MX 1 aspmx.l.google.com 10 aspmx2.googlemail.com 10 aspmx3.googlemail.com 5 alt1.aspmx.l.google.com 5 alt2.aspmx.l.google.com 60s 12.4 ms 10.89.0.1
06:44:48 AAAA — — 5.1 ms —
06:44:48 A 76.76.21.21 60s 5.1 ms 10.89.0.1
04:45:49 SOA ns-1181.awsdns-19.org awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400 900s 10.0 ms 10.89.0.1
04:45:49 TXT
25 records v=spf1 include:helpscoutemail.com include:_spf.go…
v=spf1 include:helpscoutemail.com include:_spf.google.com include:servers.mcsv.net include:amazonses.com include:mail.z… zapier-domain-verification-challenge=3373ff99-18e1-4a49-8e81-67d830eb392b cursor-domain-verification-m2k2b5=XfoK2FPHAUqoNHiCpHtqY2fXP hubspot-developer-verification=NDkzOTIwZWMtMDVkNS00YTAzLThlMDQtZDJmYzVjNzc5Zjgw OSSRH-70026 loom-site-verification=4dac5f34468e49a299444383229599d5 linear-domain-verification=wetdfvhymmbh google-site-verification=gsxlVNPtm1JCawWVNMCOVuWLK9lhzdr4Dofz-V-lovo 1password-site-verification=NKRDO4YCMBDD7KNUO4PN6RZCA4 docusign=48e7526a-7539-4ad0-b672-7a94c3a20c29 asv=8738dd37f3c5a1368cba93d24b4a1e17 MS=ms56053829 jetbrains-domain-verification=rdxczp2suguw502vrx4cqksy miro-verification=89a8ecb5df4f4febc758723fcfabd5af59041414 google-site-verification=HbwteWh_QF6HnNCDLL_1X_GRwURBkYEdFAVM00rxf_k openai-domain-verification=dv-icOHzM0IplqgpTNoO3nJaRCX mixpanel-domain-verify=d5c389d5-df00-473a-8263-3932c19beecb airtable-verification=a839ac25097d07e90b6725421494b506 sinch-domain-verification=77675a95-7309-44bf-9483-5f9020edc778 notion-domain-verification=DHmczCmyAqc8TGp6DPbfWBxLb9lSgvPv7wSOiiJfAJK slack-domain-verification=XRnWU545ZVlzHN85aeTWX7xzunEJk8Ouav9KjN7Q ps-cd-verification=6d210b55-ec4b-4105-a1d7-7a73c78619fd have-i-been-pwned-verification=a9d6f2edb8654dcfe04e310cdc9a000a facebook-domain-verification=62g2j16g5qkvf38ekdrtxiez0bsqei anthropic-domain-verification-h4s30h=RXWAAyC4VDThCnWjaprWPkUET
59s 33.3 ms 10.89.0.1
04:45:49 NS ns-499.awsdns-62.com ns-1893.awsdns-44.co.uk ns-618.awsdns-13.net ns-1181.awsdns-19.org 2328s 1.0 ms 10.89.0.1
04:45:49 MX 1 aspmx.l.google.com 10 aspmx2.googlemail.com 10 aspmx3.googlemail.com 5 alt1.aspmx.l.google.com 5 alt2.aspmx.l.google.com 60s 5.5 ms 10.89.0.1
04:45:49 AAAA — — 4.1 ms —
04:45:49 A 76.76.21.21 60s 4.2 ms 10.89.0.1
01:36:15 SOA ns-1181.awsdns-19.org awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400 900s 23.2 ms 10.89.0.1
01:36:15 TXT
25 records google-site-verification=gsxlVNPtm1JCawWVNMCOVuWL…
google-site-verification=gsxlVNPtm1JCawWVNMCOVuWLK9lhzdr4Dofz-V-lovo zapier-domain-verification-challenge=3373ff99-18e1-4a49-8e81-67d830eb392b 1password-site-verification=NKRDO4YCMBDD7KNUO4PN6RZCA4 anthropic-domain-verification-h4s30h=RXWAAyC4VDThCnWjaprWPkUET facebook-domain-verification=62g2j16g5qkvf38ekdrtxiez0bsqei ps-cd-verification=6d210b55-ec4b-4105-a1d7-7a73c78619fd notion-domain-verification=DHmczCmyAqc8TGp6DPbfWBxLb9lSgvPv7wSOiiJfAJK openai-domain-verification=dv-icOHzM0IplqgpTNoO3nJaRCX asv=8738dd37f3c5a1368cba93d24b4a1e17 v=spf1 include:helpscoutemail.com include:_spf.google.com include:servers.mcsv.net include:amazonses.com include:mail.z… jetbrains-domain-verification=rdxczp2suguw502vrx4cqksy hubspot-developer-verification=NDkzOTIwZWMtMDVkNS00YTAzLThlMDQtZDJmYzVjNzc5Zjgw airtable-verification=a839ac25097d07e90b6725421494b506 google-site-verification=HbwteWh_QF6HnNCDLL_1X_GRwURBkYEdFAVM00rxf_k docusign=48e7526a-7539-4ad0-b672-7a94c3a20c29 mixpanel-domain-verify=d5c389d5-df00-473a-8263-3932c19beecb cursor-domain-verification-m2k2b5=XfoK2FPHAUqoNHiCpHtqY2fXP slack-domain-verification=XRnWU545ZVlzHN85aeTWX7xzunEJk8Ouav9KjN7Q have-i-been-pwned-verification=a9d6f2edb8654dcfe04e310cdc9a000a OSSRH-70026 linear-domain-verification=wetdfvhymmbh miro-verification=89a8ecb5df4f4febc758723fcfabd5af59041414 loom-site-verification=4dac5f34468e49a299444383229599d5 sinch-domain-verification=77675a95-7309-44bf-9483-5f9020edc778 MS=ms56053829
59s 174.9 ms 10.89.0.1
01:36:15 NS ns-499.awsdns-62.com ns-1893.awsdns-44.co.uk ns-1181.awsdns-19.org ns-618.awsdns-13.net 21111s 14.1 ms 10.89.0.1
01:36:15 MX 10 aspmx3.googlemail.com 10 aspmx2.googlemail.com 5 alt2.aspmx.l.google.com 1 aspmx.l.google.com 5 alt1.aspmx.l.google.com 60s 24.8 ms 10.89.0.1
01:36:15 AAAA — — 18.0 ms —
01:36:15 A 76.76.21.21 4s 13.2 ms 10.89.0.1
22:54:30 SOA ns-1181.awsdns-19.org awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400 900s 5.7 ms 10.89.0.1
22:54:30 TXT
25 records MS=ms56053829
MS=ms56053829 notion-domain-verification=DHmczCmyAqc8TGp6DPbfWBxLb9lSgvPv7wSOiiJfAJK have-i-been-pwned-verification=a9d6f2edb8654dcfe04e310cdc9a000a docusign=48e7526a-7539-4ad0-b672-7a94c3a20c29 zapier-domain-verification-challenge=3373ff99-18e1-4a49-8e81-67d830eb392b sinch-domain-verification=77675a95-7309-44bf-9483-5f9020edc778 1password-site-verification=NKRDO4YCMBDD7KNUO4PN6RZCA4 google-site-verification=HbwteWh_QF6HnNCDLL_1X_GRwURBkYEdFAVM00rxf_k asv=8738dd37f3c5a1368cba93d24b4a1e17 google-site-verification=gsxlVNPtm1JCawWVNMCOVuWLK9lhzdr4Dofz-V-lovo OSSRH-70026 miro-verification=89a8ecb5df4f4febc758723fcfabd5af59041414 cursor-domain-verification-m2k2b5=XfoK2FPHAUqoNHiCpHtqY2fXP slack-domain-verification=XRnWU545ZVlzHN85aeTWX7xzunEJk8Ouav9KjN7Q hubspot-developer-verification=NDkzOTIwZWMtMDVkNS00YTAzLThlMDQtZDJmYzVjNzc5Zjgw mixpanel-domain-verify=d5c389d5-df00-473a-8263-3932c19beecb airtable-verification=a839ac25097d07e90b6725421494b506 ps-cd-verification=6d210b55-ec4b-4105-a1d7-7a73c78619fd v=spf1 include:helpscoutemail.com include:_spf.google.com include:servers.mcsv.net include:amazonses.com include:mail.z… facebook-domain-verification=62g2j16g5qkvf38ekdrtxiez0bsqei anthropic-domain-verification-h4s30h=RXWAAyC4VDThCnWjaprWPkUET openai-domain-verification=dv-icOHzM0IplqgpTNoO3nJaRCX jetbrains-domain-verification=rdxczp2suguw502vrx4cqksy linear-domain-verification=wetdfvhymmbh loom-site-verification=4dac5f34468e49a299444383229599d5
59s 17.1 ms 10.89.0.1
22:54:30 NS ns-1181.awsdns-19.org ns-1893.awsdns-44.co.uk ns-499.awsdns-62.com ns-618.awsdns-13.net 171247s 3.4 ms 10.89.0.1
22:54:30 MX 1 aspmx.l.google.com 10 aspmx2.googlemail.com 10 aspmx3.googlemail.com 5 alt1.aspmx.l.google.com 5 alt2.aspmx.l.google.com 60s 6.7 ms 10.89.0.1
22:54:30 AAAA — — 10.6 ms —
22:54:30 A 76.76.21.21 60s 4.9 ms 10.89.0.1
17:50:30 SOA ns-1181.awsdns-19.org awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400 900s 5.6 ms 10.89.0.1
17:50:30 TXT
25 records jetbrains-domain-verification=rdxczp2suguw502vrx4…
jetbrains-domain-verification=rdxczp2suguw502vrx4cqksy have-i-been-pwned-verification=a9d6f2edb8654dcfe04e310cdc9a000a anthropic-domain-verification-h4s30h=RXWAAyC4VDThCnWjaprWPkUET slack-domain-verification=XRnWU545ZVlzHN85aeTWX7xzunEJk8Ouav9KjN7Q mixpanel-domain-verify=d5c389d5-df00-473a-8263-3932c19beecb google-site-verification=gsxlVNPtm1JCawWVNMCOVuWLK9lhzdr4Dofz-V-lovo asv=8738dd37f3c5a1368cba93d24b4a1e17 v=spf1 include:helpscoutemail.com include:_spf.google.com include:servers.mcsv.net include:amazonses.com include:mail.z… loom-site-verification=4dac5f34468e49a299444383229599d5 OSSRH-70026 openai-domain-verification=dv-icOHzM0IplqgpTNoO3nJaRCX ps-cd-verification=6d210b55-ec4b-4105-a1d7-7a73c78619fd hubspot-developer-verification=NDkzOTIwZWMtMDVkNS00YTAzLThlMDQtZDJmYzVjNzc5Zjgw notion-domain-verification=DHmczCmyAqc8TGp6DPbfWBxLb9lSgvPv7wSOiiJfAJK 1password-site-verification=NKRDO4YCMBDD7KNUO4PN6RZCA4 sinch-domain-verification=77675a95-7309-44bf-9483-5f9020edc778 linear-domain-verification=wetdfvhymmbh MS=ms56053829 cursor-domain-verification-m2k2b5=XfoK2FPHAUqoNHiCpHtqY2fXP docusign=48e7526a-7539-4ad0-b672-7a94c3a20c29 miro-verification=89a8ecb5df4f4febc758723fcfabd5af59041414 airtable-verification=a839ac25097d07e90b6725421494b506 facebook-domain-verification=62g2j16g5qkvf38ekdrtxiez0bsqei google-site-verification=HbwteWh_QF6HnNCDLL_1X_GRwURBkYEdFAVM00rxf_k zapier-domain-verification-challenge=3373ff99-18e1-4a49-8e81-67d830eb392b
59s 17.8 ms 10.89.0.1
17:50:30 NS ns-618.awsdns-13.net ns-1893.awsdns-44.co.uk ns-499.awsdns-62.com ns-1181.awsdns-19.org 3026s 0.9 ms 10.89.0.1
17:50:30 MX 1 aspmx.l.google.com 10 aspmx2.googlemail.com 10 aspmx3.googlemail.com 5 alt1.aspmx.l.google.com 5 alt2.aspmx.l.google.com 60s 11.3 ms 10.89.0.1
17:50:30 AAAA — — 32.0 ms —
17:50:30 A 76.76.21.21 60s 31.0 ms 10.89.0.1
16:41:00 SOA ns-1181.awsdns-19.org awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400 900s 11.5 ms 10.89.0.1
16:41:00 TXT
25 records loom-site-verification=4dac5f34468e49a29944438322…
loom-site-verification=4dac5f34468e49a299444383229599d5 v=spf1 include:helpscoutemail.com include:_spf.google.com include:servers.mcsv.net include:amazonses.com include:mail.z… openai-domain-verification=dv-icOHzM0IplqgpTNoO3nJaRCX ps-cd-verification=6d210b55-ec4b-4105-a1d7-7a73c78619fd mixpanel-domain-verify=d5c389d5-df00-473a-8263-3932c19beecb google-site-verification=HbwteWh_QF6HnNCDLL_1X_GRwURBkYEdFAVM00rxf_k miro-verification=89a8ecb5df4f4febc758723fcfabd5af59041414 OSSRH-70026 linear-domain-verification=wetdfvhymmbh MS=ms56053829 jetbrains-domain-verification=rdxczp2suguw502vrx4cqksy google-site-verification=gsxlVNPtm1JCawWVNMCOVuWLK9lhzdr4Dofz-V-lovo hubspot-developer-verification=NDkzOTIwZWMtMDVkNS00YTAzLThlMDQtZDJmYzVjNzc5Zjgw have-i-been-pwned-verification=a9d6f2edb8654dcfe04e310cdc9a000a asv=8738dd37f3c5a1368cba93d24b4a1e17 cursor-domain-verification-m2k2b5=XfoK2FPHAUqoNHiCpHtqY2fXP 1password-site-verification=NKRDO4YCMBDD7KNUO4PN6RZCA4 airtable-verification=a839ac25097d07e90b6725421494b506 slack-domain-verification=XRnWU545ZVlzHN85aeTWX7xzunEJk8Ouav9KjN7Q docusign=48e7526a-7539-4ad0-b672-7a94c3a20c29 facebook-domain-verification=62g2j16g5qkvf38ekdrtxiez0bsqei zapier-domain-verification-challenge=3373ff99-18e1-4a49-8e81-67d830eb392b anthropic-domain-verification-h4s30h=RXWAAyC4VDThCnWjaprWPkUET notion-domain-verification=DHmczCmyAqc8TGp6DPbfWBxLb9lSgvPv7wSOiiJfAJK sinch-domain-verification=77675a95-7309-44bf-9483-5f9020edc778
59s 22.2 ms 10.89.0.1
16:41:00 NS ns-1181.awsdns-19.org ns-1893.awsdns-44.co.uk ns-499.awsdns-62.com ns-618.awsdns-13.net 169064s 5.0 ms 10.89.0.1
16:41:00 MX 1 aspmx.l.google.com 10 aspmx2.googlemail.com 10 aspmx3.googlemail.com 5 alt1.aspmx.l.google.com 5 alt2.aspmx.l.google.com 60s 6.0 ms 10.89.0.1
16:41:00 AAAA — — 4.9 ms —
16:41:00 A 76.76.21.21 60s 12.7 ms 10.89.0.1
Open Ports 2
Open Ports
2
IPs Scanned
2
Port Protocol Service IP Address Status Latency Banner
80 TCP http 76.76.21.21 Open 2.2 ms —
443 TCP https 76.76.21.21 Open 1017.5 ms —
Active IP Addresses
IP Address Version Reverse DNS CIDR Country City ASN Reputation First Seen Last DNS Hits Misses Uptime % Avg Latency
76.76.21.21 IPv4 — 76.76.21.0/24 US Walnut AS16509 Amazon.com, Inc. Clean 2026-04-19 19:10 2026-04-22 11:48 8 0 100.0% 2.5 ms
Technology
Technology Stack 36 detected
HTTP/2
HTTP/3 (QUIC)
36
Technologies
API 1
CORS Enabled
90%
CORS methods header
Analytics 2
70%
GTM script
85%
TXT verification: mixpanel-domain-verify=d5c389d5-df00-473a-8263-3932c19beecb
Automation 1
85%
TXT verification: zapier-domain-verification-challenge=3373ff99-18e1-4a49-8e81-…
CMS 1
70%
Sanity domain
CRM 1
85%
TXT verification: airtable-verification=a839ac25097d07e90b6725421494b506
DNS 1
85%
NS record: ns-1181.awsdns-19.org
Email 8
85%
TXT record: v=spf1 include:helpscoutemail.com include:_spf.google.com include:s…
85%
SPF include: v=spf1 include:helpscoutemail.com include:_spf.google.com include:…
85%
MX record: 1 aspmx.l.google.com
85%
SPF include: v=spf1 include:helpscoutemail.com include:_spf.google.com include:…
85%
SPF include: v=spf1 include:helpscoutemail.com include:_spf.google.com include:…
85%
SPF include: v=spf1 include:helpscoutemail.com include:_spf.google.com include:…
SPF Record
85%
TXT SPF: v=spf1 include:helpscoutemail.com include:_spf.google.com include:serv…
85%
SPF include: v=spf1 include:helpscoutemail.com include:_spf.google.com include:…
Framework 1
70%
Next.js build path
Marketing 3
70%
Customer.io
85%
TXT verification: hubspot-developer-verification=NDkzOTIwZWMtMDVkNS00YTAzLThlMD…
85%
TXT verification: hubspot-developer-verification=NDkzOTIwZWMtMDVkNS00YTAzLThlMD…
Platform 1
90%
X-Vercel-Id header
Productivity 4
85%
TXT verification: linear-domain-verification=wetdfvhymmbh
85%
TXT verification: miro-verification=89a8ecb5df4f4febc758723fcfabd5af59041414
85%
TXT verification: notion-domain-verification=DHmczCmyAqc8TGp6DPbfWBxLb9lSgvPv7w…
85%
TXT verification: slack-domain-verification=XRnWU545ZVlzHN85aeTWX7xzunEJk8Ouav9…
SEO 2
70%
JSON-LD structured data
70%
Schema.org structured data
Security 1
85%
TXT verification: 1password-site-verification=NKRDO4YCMBDD7KNUO4PN6RZCA4
Social 2
70%
Open Graph meta tags
70%
Twitter Card meta
Support 2
85%
TXT verification: v=spf1 include:helpscoutemail.com include:_spf.google.com inc…
85%
TXT verification: v=spf1 include:helpscoutemail.com include:_spf.google.com inc…
Verification 5
85%
TXT verification: docusign=48e7526a-7539-4ad0-b672-7a94c3a20c29
85%
TXT verification: google-site-verification=HbwteWh_QF6HnNCDLL_1X_GRwURBkYEdFAVM…
85%
TXT verification: have-i-been-pwned-verification=a9d6f2edb8654dcfe04e310cdc9a00…
85%
TXT verification: facebook-domain-verification=62g2j16g5qkvf38ekdrtxiez0bsqei
85%
TXT verification: MS=ms56053829
Technology Provider 1 tech · 1 sites

This domain provides technology used by other monitored sites.

Customer.io
apollo.io
Discovery
Crawl Configuration
robots.txt Sitemap · 442 URLs
robots.txt 5 disallow · 1 allow · 1 agent
User-Agent Directive Path / Value
* Allow /
* Disallow /api
* Disallow /studio
* Disallow /we-hate-spam
* Disallow /learn/announcements/update-to-compromised-email-addresses-incident
* Disallow /mops-status.html
* Sitemap https://customer.io/sitemap.xml 
User-Agent: *
Allow: /
Disallow: /api
Disallow: /studio
Disallow: /we-hate-spam
Disallow: /learn/announcements/update-to-compromised-email-addresses-incident
Disallow: /mops-status.html

Host: https://customer.io
Sitemap: https://customer.io/sitemap.xml
Sitemap
442
URLs
Sitemap Accessible
Standard
Discovered Sub-domains 27
Wordlist Brute-force 26 Link Scan 1
Subdomain Source Status Code Response IPs Last Checked
academy.customer.io Wordlist Brute-force UP 200 603 ms — 2 days, 10 hours ago
api-staging.customer.io Wordlist Brute-force Pending — — — Never
api.customer.io Wordlist Brute-force Pending — — — Never
app.customer.io Wordlist Brute-force Pending — — — Never
assets.customer.io Wordlist Brute-force Pending — — — Never
auth.customer.io Wordlist Brute-force Pending — — — Never
brand.customer.io Wordlist Brute-force Pending — — — Never
click.customer.io Wordlist Brute-force Pending — — — Never
cms.customer.io Wordlist Brute-force Pending — — — Never
community.customer.io Wordlist Brute-force Pending — — — Never
docs.customer.io Wordlist Brute-force UP 200 119 ms 2600:1f18:16e:df01::258, 2600:1f18:16e:df01::259 2 days, 10 hours ago
fly.customer.io Link Scan UP 200 144 ms — 2 days, 10 hours ago
gitlab.customer.io Wordlist Brute-force Pending — — — Never
internal.customer.io Wordlist Brute-force Pending — — — Never
learn.customer.io Wordlist Brute-force Pending — — — Never
links.customer.io Wordlist Brute-force Pending — — — Never
login.customer.io Wordlist Brute-force Pending — — — Never
mail.customer.io Wordlist Brute-force Pending — — — Never
sentry.customer.io Wordlist Brute-force Pending — — — Never
share.customer.io Wordlist Brute-force Pending — — — Never
shop.customer.io Wordlist Brute-force Pending — — — Never
soar.customer.io Wordlist Brute-force Pending — — — Never
staging.customer.io Wordlist Brute-force Pending — — — Never
status.customer.io Wordlist Brute-force Pending — — — Never
track.customer.io Wordlist Brute-force Pending — — — Never
video.customer.io Wordlist Brute-force Pending — — — Never
www.customer.io Wordlist Brute-force Pending — — — Never