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
2026-09-12T23:40:43+00:00
Expires
2026-12-11T23:40:42+00:00
Days remaining
79
Serial (hex)
06384A7D316602EC2F2E2B754281DDB77BEA
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

46:1B:F1:24:ED:BD:14:85:D3:A0:E3:DE:A5:AB:60:CE:D3:4C:31:D1:27:94:FF:F9:8D:39:8C:BC:5B:87:8A:FA
Certificate extensions & PEM
keyUsage
Digital Signature, Key Encipherment
extendedKeyUsage
TLS Web Server Authentication
basicConstraints
CA:FALSE
subjectKeyIdentifier
82:84:8A:F2:D6:E8:3D:76:CC:BB:A1:17:75:F3:A0:D0:DA:21:F9:76
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/107.crl
ct_precert_scts
Signed Certificate Timestamp: Version : v1 (0x0) Log ID : CB:38:F7:15:89:7C:84:A1:44:5F:5B:C1:DD:FB:C9:6E: F2:9A:59:CD:47:0A:69:05:85:B0:CB:14:C3:14:58:E7 Timestamp : Sep 13 00:39:13.785 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:21:00:C3:BC:62:E7:D6:3C:F8:80:76:8C:C4: FF:C7:87:67:58:F0:DD:12:E1:E0:91:FF:22:07:E2:A8: 1B:85:D3:FF:C6:02:20:5B:34:E9:DA:E8:E5:4C:CF:C5: 4A:13:6C:E8:A1:D6:39:B8:D6:67:72:8F:AC:16:D8:E7: 6D:20:B8:28:EF:E2:00 Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 6C:FE:50:19:43:A8:5E:A9:16:BC:52:D1:33:E4:DC:C9: 1E:F1:41:1C:7D:25:84:20:D1:73:80:9E:18:18:EB:3A Timestamp : Sep 13 00:39:14.606 2026 GMT Extensions: 00:00:05:00:33:E3:21:3B Signature : ecdsa-with-SHA256 30:45:02:21:00:E7:70:9B:F3:1A:F0:92:ED:06:A9:41: 72:E7:3E:84:61:11:29:B9:86:DA:A1:11:0C:C5:4A:FA: 10:5F:4E:EF:E6:02:20:0A:16:C2:7E:A8:60:47:50:03: 85:B7:3C:F8:D6:D9:5D:20:CA:AB:28:18:0A:02:92:B0: 26:33:32:FC:51:A8:EE
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: TLS_AES_256_GCM_SHA384 · Checked 2026-09-23T05:35:34+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
710
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-----
MIIE2jCCAsKgAwIBAgIQTr0klH4k05SALYSlL9WzGTANBgkqhkiG9w0BAQsFADAu
MQswCQYDVQQGEwJVUzENMAsGA1UEChMESVNSRzEQMA4GA1UEAxMHUm9vdCBZUjAe
Fw0yNTA5MDMwMDAwMDBaFw0yODA5MDIyMzU5NTlaMDMxCzAJBgNVBAYTAlVTMRYw
FAYDVQQKEw1MZXQncyBFbmNyeXB0MQwwCgYDVQQDEwNZUjIwggEiMA0GCSqGSIb3
DQEBAQUAA4IBDwAwggEKAoIBAQDZ0LxwBppqh84luqMerV/eeL/fXQ7mLQQv1Lnp
WKZbyvGpx6wh6AfnslAnF6ewTkcHA+gSOoBvm3Dfm06AuGiF+KRut4fAcowqnAQQ
CW98+QPP/eOv/wug7Iyk4NkOxf2I6g2f55T6nJoOTLFcukeRq80JGQEYan+dPFr9
OGUgQK2hGKgNkW87pappsOAuUJcroYhRt5uUis4qaZireiseu32gzDJNBAiKtsvd
6HX4v25bpkRNcS/B/Gtc9kVbUpD+2PLPxdei3Tim55k4tfAEXwD2qyiPTxrTNq6l
N+AMr5g2c1dNqkOTwjxeV6L5lpP1rGiYvLnRaPlOqyZRPW+5AgMBAAGjge4wgesw
DgYDVR0PAQH/BAQDAgGGMBMGA1UdJQQMMAoGCCsGAQUFBwMBMBIGA1UdEwEB/wQI
MAYBAf8CAQAwHQYDVR0OBBYEFEAVLSZ57TIgnt+ach3WMh+BDIEMMB8GA1UdIwQY
MBaAFN7nW2DQIm1AKH0/DQH+pLVStFGUMDIGCCsGAQUFBwEBBCYwJDAiBggrBgEF
BQcwAoYWaHR0cDovL3lyLmkubGVuY3Iub3JnLzATBgNVHSAEDDAKMAgGBmeBDAEC
ATAnBgNVHR8EIDAeMBygGqAYhhZodHRwOi8veXIuYy5sZW5jci5vcmcvMA0GCSqG
SIb3DQEBCwUAA4ICAQB0ZUQWZ9/Yn9COEpo+JfecMnB0h0vwDm/M66IqXqw3LoaL
mx9lZvRTeDIS67PUeI3yCA2W6PKRD0/FE/G57lOmS+Xy5AaaL00ICGOqjNcCaMWW
8o8nevHOd4i4lqgtznE/28QwlcdJyF8yBiWHpnyjhEpmNWJURgOCOg2xpwRMBCsj
MScqYPtOhBeuYQvSwAEeTML2Ukh6uGuX4E14q65Ja8cdjF5bAldnP1eE4FBaAwsZ
G2fOqqrKV03Y85Nw2btedP1AtliQuJZs/Jo/gXxXdc7LrH3McgnpnbTiAncX7yES
hP6kzQejllqMCIt52HOjxDGWafS7Xw+DKwqmH+Eqy8dcbOuag/1AYlQoKNVK3F5q
Hh6tEDiMqQcLIibGKteE6iHo4A/bIScbzrhXUYuism42ZYzmc48FMVIH3qy4L84E
TdAH2gtxw0PAhvRVXp8HP7wfngpzsN/8xOTpeRSbM4+Qbc56G6+Bifmv6sk1ieQb
NA3wJdl4DDUuQSV8hBgx6zoI1ZSGORprDFux7c6rhc77QZMSRrEgomBeklervEve
86ylWmZ3WWHV6RLMi8xNvjd71r4EPIGgY7BZU/VPBkq+uA7Gb6mbJnFgV43uh3xy
LRFgxIAphIukwTGSMZZR+AI+Qnp0BYTWovHXozOf3H8r6hozEoT02JHn0AeTfA==
-----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
2171
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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