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

apnic.net · 202.12.29.1:443

Verified

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

Subject
CN=apnic.academy
Issuer
C=US O=Let's Encrypt CN=YR1
Valid from
2026-09-10T00:04:34+00:00
Expires
2026-12-09T00:04:33+00:00
Days remaining
80
Serial (hex)
05DCB1B31AE6466C1B4C5A07674CE9595FA6
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

DNS:apnic.academy, DNS:apnic.au, DNS:apnic.blog, DNS:apnic.com, DNS:apnic.com.au, DNS:apnic.exposed, DNS:apnic.int, DNS:apnic.mobi, DNS:apnic.net, DNS:apnic.net.au, DNS:apnic.org, DNS:apnic.org.au, DNS:apnic.social, DNS:apnicfoundation.com, DNS:apnicfoundation.net, DNS:apnicfoundation.org, DNS:apply.apnic.net, DNS:forms.apnic.net, DNS:myapnic.net, DNS:ssllabs.apnic.net, DNS:webmail.apnic.net, DNS:www.apnic.academy, DNS:www.apnic.au, DNS:www.apnic.com, DNS:www.apnic.com.au, DNS:www.apnic.int, DNS:www.apnic.mobi, DNS:www.apnic.net.au, DNS:www.apnic.org, DNS:www.apnic.org.au, DNS:www.apnicfoundation.com, DNS:www.apnicfoundation.net, DNS:www.apnicfoundation.org, DNS:www.myapnic.net

SHA-256 fingerprint

58:42:A0:94:70:5B:6A:60:BE:04:BD:3E:92:32:89:61:24:E9:01:33:9C:B7:3E:0A:B8:50:27:39:5D:13:49:6E
Certificate extensions & PEM
keyUsage
Digital Signature, Key Encipherment
extendedKeyUsage
TLS Web Server Authentication
basicConstraints
CA:FALSE
subjectKeyIdentifier
3A:A7:B0:B2:64:D4:15:FC:E6:2D:28:F4:C7:A3:56:E0:2E:57:5D:59
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:apnic.academy, DNS:apnic.au, DNS:apnic.blog, DNS:apnic.com, DNS:apnic.com.au, DNS:apnic.exposed, DNS:apnic.int, DNS:apnic.mobi, DNS:apnic.net, DNS:apnic.net.au, DNS:apnic.org, DNS:apnic.org.au, DNS:apnic.social, DNS:apnicfoundation.com, DNS:apnicfoundation.net, DNS:apnicfoundation.org, DNS:apply.apnic.net, DNS:forms.apnic.net, DNS:myapnic.net, DNS:ssllabs.apnic.net, DNS:webmail.apnic.net, DNS:www.apnic.academy, DNS:www.apnic.au, DNS:www.apnic.com, DNS:www.apnic.com.au, DNS:www.apnic.int, DNS:www.apnic.mobi, DNS:www.apnic.net.au, DNS:www.apnic.org, DNS:www.apnic.org.au, DNS:www.apnicfoundation.com, DNS:www.apnicfoundation.net, DNS:www.apnicfoundation.org, DNS:www.myapnic.net
certificatePolicies
Policy: 2.23.140.1.2.1
crlDistributionPoints
Full Name: URI:http://yr1.c.lencr.org/39.crl
ct_precert_scts
Signed Certificate Timestamp: Version : v1 (0x0) Log ID : C2:31:7E:57:45:19:A3:45:EE:7F:38:DE:B2:90:41:EB: C7:C2:21:5A:22:BF:7F:D5:B5:AD:76:9A:D9:0E:52:CD Timestamp : Sep 10 01:03:04.610 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:21:00:C5:77:F0:12:89:59:66:A4:46:0D:B2: 43:99:F5:BB:1E:62:28:02:5E:F3:1E:33:51:25:AA:4D: 94:2D:53:60:45:02:20:74:B8:34:4C:F6:9E:A3:ED:6C: 10:F1:0D:CD:AA:F2:60:15:47:77:2A:AA:D2:C6:67:34: 4A:84:2E:2B:CD:AA:7F Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 46:AF:86:3D:3B:3E:E5:9F:A5:77:DE:A8:24:5D:36:B0: D9:ED:22:A2:23:F4:61:77:41:22:94:52:EE:95:50:5F Timestamp : Sep 10 01:03:06.752 2026 GMT Extensions: 00:00:05:00:29:CF:96:FE Signature : ecdsa-with-SHA256 30:45:02:20:7B:2E:D5:2D:11:ED:BB:FB:07:78:45:69: B2:09:32:46:30:21:12:19:7D:EE:C8:B2:C5:F6:DC:38: 5B:73:15:BF:02:21:00:CB:25:96:E4:CB:18:76:A3:41: 16:85:70:9F:A5:40:7E:21:44:5F:14:B4:B6:E8:BA:17: C4:62:B0:E9:08:1F:F6
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: TLS_AES_128_GCM_SHA256 · Checked 2026-09-19T23:50:07+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
714
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
2175
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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