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

measurement.network · 141.39.220.71:443

Verified

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

Subject
CN=web02.dus01.infra.measurement.network
Issuer
C=US O=Let's Encrypt CN=YR2
Valid from
2026-11-11T23:40:43+00:00
Expires
2027-02-09T23:40:42+00:00
Days remaining
89
Serial (hex)
05E4D9196A3F6D0BF60C75D73BA0C33F2F50
Signature
RSA-SHA256
Public key
RSA 4096

Subject alternative names (SAN)

DNS:measurement.network, DNS:web02.dus01.infra.measurement.network, DNS:www.measurement.network

SHA-256 fingerprint

8A:06:18:F5:3D:53:13:27:71:1C:08:A9:F2:8C:F9:2C:51:AB:E2:D9:A4:9F:30:B4:59:52:4B:FF:8A:5E:07:5B
Certificate extensions & PEM
keyUsage
Digital Signature, Key Encipherment
extendedKeyUsage
TLS Web Server Authentication
basicConstraints
CA:FALSE
subjectKeyIdentifier
D1:7C:96:16:88:A5:3C:77:01:2A:F2:7B:6F:B0:5A:B3:09:F9:D0:6E
authorityKeyIdentifier
40:15:2D:26:79:ED:32:20:9E:DF:9A:72:1D:D6:32:1F:81:0C:81:0C
authorityInfoAccess
CA Issuers - URI:http://yr2.i.lencr.org/
subjectAltName
DNS:measurement.network, DNS:web02.dus01.infra.measurement.network, DNS:www.measurement.network
certificatePolicies
Policy: 2.23.140.1.2.1
crlDistributionPoints
Full Name: URI:http://yr2.c.lencr.org/81.crl
ct_precert_scts
Signed Certificate Timestamp: Version : v1 (0x0) Log ID : A2:81:00:18:73:4E:17:6E:1D:47:E0:95:40:F3:81:BA: 54:66:97:CD:63:A8:43:50:71:6E:B8:09:4E:DA:F1:0D Timestamp : Nov 12 00:39:14.307 2026 GMT Extensions: 00:00:05:00:42:18:AE:3C Signature : ecdsa-with-SHA256 30:45:02:21:00:9E:3B:E7:12:4B:FF:83:86:34:9B:18: A0:B6:45:2B:C9:95:90:21:B2:72:DD:62:F6:9D:45:86: 60:C4:39:BF:98:02:20:45:E3:A8:E4:84:3B:D2:11:03: 06:C9:52:E3:0A:61:8D:CC:95:B0:9A:F5:0C:26:91:15: 28:F2:C0:24:14:7F:28 Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 60:4C:9A:AF:7A:7F:77:5F:01:D4:06:FC:92:0D:C8:99: EB:0B:1C:7D:F8:C9:52:1B:FA:FA:17:77:3B:97:8B:C9 Timestamp : Nov 12 00:39:14.589 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:46:02:21:00:CE:40:CB:ED:91:77:55:D3:66:C0:80: 5E:7E:B1:C0:A4:0E:81:E6:41:C9:E7:E3:13:F3:3B:1D: 63:D6:46:D6:34:02:21:00:AB:A1:4D:8B:02:A5:0F:FB: 29:DF:11:A4:4B:70:FF:FF:69:E8:96:CD:AD:25:06:BB: 7D:A3:50:F5:81:6A:67:5E
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: TLS_AES_256_GCM_SHA384 · Checked 2026-11-12T08:50:07+00:00

Server-presented chain · 2 additional certificates

Chain certificate 1

Subject
C=US O=Let's Encrypt CN=YR2
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
660
Serial (hex)
4EBD24947E24D394802D84A52FD5B319
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

23:8B:85:A0:09:9C:65:B9:70:47:7D:57:24:F1:A1:D4:75:CE:50:58:CF:FE:4E:FA:87:33:89:9B:DB:86:3C:47
Certificate extensions & PEM
keyUsage
Digital Signature, Certificate Sign, CRL Sign
extendedKeyUsage
TLS Web Server Authentication
basicConstraints
CA:TRUE, pathlen:0
subjectKeyIdentifier
40:15:2D:26:79:ED:32:20:9E:DF:9A:72:1D:D6:32:1F:81:0C:81:0C
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
2121
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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