DNS
THE CERTIFICATE BEHIND THE CONNECTION

TLS certificate checker.

Inspect SSL/TLS certificates for any public domain or subdomain.

Checks HTTPS on port 443, including subject alternative names, validity dates and the presented chain.

SSL certificate

TLSv1.3

col.la · 159.69.154.180:443

Verified

Certificate chain, hostname and dates verified using this server’s CA store.

Subject
CN=kiwi.collaboradmins.com
Issuer
C=US O=Let's Encrypt CN=YR1
Valid from
2026-10-08T20:14:45+00:00
Expires
2027-01-06T20:14:44+00:00
Days remaining
60
Serial (hex)
0523CA2D8C5E4C3E48A9CCF918ABC4DC44BB
Signature
RSA-SHA256
Public key
RSA 4096

Subject alternative names (SAN)

DNS:col.la, DNS:dokr12-cl-prod-nbg1-hz.collaboradmins.com, DNS:kiwi.collaboradmins.com, DNS:limesurvey.collabora.com, DNS:matomo.collabora.com, DNS:matomo.hs.collabora.com, DNS:poll.collabora.com, DNS:survey.collabora.com, DNS:www.col.la

SHA-256 fingerprint

3B:10:1B:3B:BF:4B:0D:ED:36:A5:52:3A:A0:BC:F0:63:B8:B8:21:21:88:B4:21:76:7D:66:C1:37:A1:47:BF:A9
Certificate extensions & PEM
keyUsage
Digital Signature, Key Encipherment
extendedKeyUsage
TLS Web Server Authentication
basicConstraints
CA:FALSE
subjectKeyIdentifier
DB:10:E7:EF:FF:58:AD:FF:55:BF:D4:3F:DB:E6:17:2A:C9:DA:93:10
authorityKeyIdentifier
1F:2F:35:BE:46:14:82:CD:40:B1:AE:79:2C:55:78:FA:F7:D4:68:FB
authorityInfoAccess
CA Issuers - URI:http://yr1.i.lencr.org/
subjectAltName
DNS:col.la, DNS:dokr12-cl-prod-nbg1-hz.collaboradmins.com, DNS:kiwi.collaboradmins.com, DNS:limesurvey.collabora.com, DNS:matomo.collabora.com, DNS:matomo.hs.collabora.com, DNS:poll.collabora.com, DNS:survey.collabora.com, DNS:www.col.la
certificatePolicies
Policy: 2.23.140.1.2.1
crlDistributionPoints
Full Name: URI:http://yr1.c.lencr.org/60.crl
ct_precert_scts
Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 1C:9F:68:2C:E9:FA:F0:45:69:50:F8:1B:96:8A:87:DD: DB:32:10:D8:4C:E6:C8:B2:E3:82:52:4A:C4:CF:59:9F Timestamp : Oct 8 21:13:16.057 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:44:02:20:6E:60:79:E6:93:71:D5:87:E5:5F:56:F5: 6A:B1:73:11:57:EF:2D:36:B8:41:DE:9E:1F:5E:33:94: 95:A9:3C:C3:02:20:29:9F:C5:6C:21:5A:B7:E1:EE:E3: 3C:E5:F9:18:26:04:A7:AD:3B:E0:26:B1:23:54:6A:52: 2B:A5:59:08:FA:28 Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 59:6E:6C:33:86:94:B2:59:72:A2:56:C8:A0:E8:DD:90: 4A:76:E8:08:3D:DA:87:3B:01:08:38:28:14:3C:EE:59 Timestamp : Oct 8 21:13:16.067 2026 GMT Extensions: 00:00:05:00:09:B0:26:A6 Signature : ecdsa-with-SHA256 30:45:02:21:00:A8:33:51:EC:29:B5:8B:76:0C:BC:2C: D2:3D:0F:A4:26:AF:CF:A6:A9:10:9F:84:28:B5:32:50: 15:AC:F1:2A:FB:02:20:3A:A9:D7:03:EE:BA:D8:9D:CE: CD:9E:51:F2:08:3F:F4:9D:28:70:E8:40:AD:DA:53:4D: 1B:BF:76:5D:21:89:56
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: TLS_AES_256_GCM_SHA384 · Checked 2026-11-06T22:39:02+00:00

Server-presented chain · 2 additional certificates

Chain certificate 1

Subject
C=US O=Let's Encrypt CN=YR1
Issuer
C=US O=ISRG CN=Root YR
Valid from
2025-09-03T00:00:00+00:00
Expires
2028-09-02T23:59:59+00:00
Days remaining
666
Serial (hex)
A20253F15F2691C05DC1CE13B9BCCA4E
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

13:94:96:34:D9:9C:D6:FD:6A:A8:0B:C0:34:FE:FA:CC:EB:19:69:FE:EF:98:65:86:71:3E:CD:BB:05:75:8D:3F
Certificate extensions & PEM
keyUsage
Digital Signature, Certificate Sign, CRL Sign
extendedKeyUsage
TLS Web Server Authentication
basicConstraints
CA:TRUE, pathlen:0
subjectKeyIdentifier
1F:2F:35:BE:46:14:82:CD:40:B1:AE:79:2C:55:78:FA:F7:D4:68:FB
authorityKeyIdentifier
DE:E7:5B:60:D0:22:6D:40:28:7D:3F:0D:01:FE:A4:B5:52:B4:51:94
authorityInfoAccess
CA Issuers - URI:http://yr.i.lencr.org/
certificatePolicies
Policy: 2.23.140.1.2.1
crlDistributionPoints
Full Name: URI:http://yr.c.lencr.org/ 
-----BEGIN CERTIFICATE-----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=
-----END CERTIFICATE-----

Chain certificate 2

Subject
C=US O=ISRG CN=Root YR
Issuer
C=US O=Internet Security Research Group CN=ISRG Root X1
Valid from
2026-05-13T00:00:00+00:00
Expires
2032-09-02T23:59:59+00:00
Days remaining
2127
Serial (hex)
F24B6D17F9D9AD7CB1C9FEA78782699F
Signature
RSA-SHA256
Public key
RSA 4096

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

07:26:39:D0:B1:40:D5:BF:FA:E1:6A:D9:C3:F6:CC:60:86:04:06:21:F5:1E:E6:1A:6D:46:A8:91:5C:07:CF:76
Certificate extensions & PEM
keyUsage
Certificate Sign, CRL Sign
extendedKeyUsage
TLS Web Server Authentication
basicConstraints
CA:TRUE
subjectKeyIdentifier
DE:E7:5B:60:D0:22:6D:40:28:7D:3F:0D:01:FE:A4:B5:52:B4:51:94
authorityKeyIdentifier
79:B4:59:E6:7B:B6:E5:E4:01:73:80:08:88:C8:1A:58:F6:E9:9B:6E
authorityInfoAccess
CA Issuers - URI:http://x1.i.lencr.org/
certificatePolicies
Policy: 2.23.140.1.2.1
crlDistributionPoints
Full Name: URI:http://x1.c.lencr.org/ 
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

One endpoint on port 443. Server-presented chain; no revocation, OCSP, CT or full TLS security scan.

View certificate JSON

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