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

umea.se · 193.254.4.30:443

Verified

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

Subject
CN=umea.se
Issuer
C=US O=Let's Encrypt CN=YR1
Valid from
2026-10-04T05:42:27+00:00
Expires
2027-01-02T05:42:26+00:00
Days remaining
51
Serial (hex)
0524E9DBA5CBA435CCC60A83163E03DF6A48
Signature
RSA-SHA256
Public key
RSA 4096

Subject alternative names (SAN)

DNS:*.app.umea.se, DNS:*.arkiv.umea.se, DNS:*.bibliotek.umea.se, DNS:*.edu.umea.se, DNS:*.inab.umea.se, DNS:*.intranet.umea.se, DNS:*.it.umea.se, DNS:*.net.umea.se, DNS:*.simhall.umea.se, DNS:*.skola.umea.se, DNS:*.storsjohallen.se, DNS:*.umea.se, DNS:*.upab.umea.se, DNS:umea.se

SHA-256 fingerprint

81:F3:CE:F1:C7:7A:08:D6:6D:0C:73:3B:35:55:63:26:1D:7C:97:4B:CA:C4:9A:D4:0B:A4:AE:0F:9E:96:D2:BF
Certificate extensions & PEM
keyUsage
Digital Signature, Key Encipherment
extendedKeyUsage
TLS Web Server Authentication
basicConstraints
CA:FALSE
subjectKeyIdentifier
E7:43:8A:02:A5:81:8E:2D:44:B3:5F:23:C8:37:6B:A4:35:2C:DA:D9
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:*.app.umea.se, DNS:*.arkiv.umea.se, DNS:*.bibliotek.umea.se, DNS:*.edu.umea.se, DNS:*.inab.umea.se, DNS:*.intranet.umea.se, DNS:*.it.umea.se, DNS:*.net.umea.se, DNS:*.simhall.umea.se, DNS:*.skola.umea.se, DNS:*.storsjohallen.se, DNS:*.umea.se, DNS:*.upab.umea.se, DNS:umea.se
certificatePolicies
Policy: 2.23.140.1.2.1
crlDistributionPoints
Full Name: URI:http://yr1.c.lencr.org/73.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 4 06:40:57.789 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:20:33:5B:78:82:AE:27:3C:B3:7C:84:8D:F1: 0B:F6:44:9E:57:F5:4E:68:B3:77:5B:51:83:F4:67:37: 86:89:60:08:02:21:00:AE:4D:FC:A6:4B:68:C5:43:BE: 13:F7:13:F2:A4:54:D0:35:0D:82:1C:21:7A:EA:30:1D: B0:77:2A:0C:71:EA:7F Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 8E:CA:47:0B:AC:DE:6A:F3:A2:06:B0:A4:7A:84:B7:46: FE:1F:C6:BF:95:3E:25:E6:9B:4E:E4:02:48:F3:C6:E8 Timestamp : Oct 4 06:40:57.861 2026 GMT Extensions: 00:00:05:00:1B:A8:D1:8D Signature : ecdsa-with-SHA256 30:45:02:21:00:EF:60:8F:D8:A5:73:87:88:11:D2:F0: 3C:A3:32:25:C4:59:6C:B8:49:3C:17:79:0A:0C:30:D7: 88:5A:BD:62:2D:02:20:5C:2E:80:08:3C:AC:CF:96:2F: 52:80:BA:8A:1C:E9:37:73:5B:52:EE:4A:7B:36:0E:1E: AC:0E:30:86:31:77:5B
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: TLS_AES_128_GCM_SHA256 · Checked 2026-11-11T22:33:03+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
661
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
2122
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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