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

dataweb.nl · 185.104.28.118:443

Verified

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

Subject
CN=dataweb.nl
Issuer
C=US O=Let's Encrypt CN=YR1
Valid from
2026-09-24T08:25:55+00:00
Expires
2026-12-23T08:25:54+00:00
Days remaining
84
Serial (hex)
06FDD421A8FEDBE544242384971C4DAFEBE5
Signature
RSA-SHA256
Public key
RSA 4096

Subject alternative names (SAN)

DNS:30jaar.dataweb.nl, DNS:dataweb.nl, DNS:dev.dataweb.nl, DNS:images.dataweb.nl, DNS:www.dataweb.nl, DNS:zg.dataweb.nl

SHA-256 fingerprint

54:16:E0:D2:C8:B6:CD:96:19:68:DF:42:42:93:20:F9:C3:A8:D4:8A:17:45:7F:83:78:AA:86:FD:C1:44:E4:5C
Certificate extensions & PEM
keyUsage
Digital Signature, Key Encipherment
extendedKeyUsage
TLS Web Server Authentication
basicConstraints
CA:FALSE
subjectKeyIdentifier
67:EE:A9:49:D0:7A:A5:0B:16:B5:F4:3B:56:11:B8:03:60:DF:E3:99
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:30jaar.dataweb.nl, DNS:dataweb.nl, DNS:dev.dataweb.nl, DNS:images.dataweb.nl, DNS:www.dataweb.nl, DNS:zg.dataweb.nl
certificatePolicies
Policy: 2.23.140.1.2.1
crlDistributionPoints
Full Name: URI:http://yr1.c.lencr.org/102.crl
ct_precert_scts
Signed Certificate Timestamp: Version : v1 (0x0) Log ID : AF:67:88:3B:57:B0:4E:DD:8F:A6:D9:7E:F6:2E:A8:EB: 81:0A:C7:71:60:F0:24:5E:55:D6:0C:2F:E7:85:87:3A Timestamp : Sep 24 09:24:26.171 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:20:68:76:4E:C4:3D:DB:17:FD:6D:8E:DD:40: A1:A7:9E:41:0F:DD:D4:E0:CA:A5:0F:AA:BA:CA:1E:02: D9:6D:7C:FF:02:21:00:A7:DE:5A:51:D6:87:AC:40:90: EF:8F:3A:2B:B6:6B:1B:57:1E:DE:FD:2A:2C:9E:8C:0C: C7:5A:CE:87:39:E7:8D 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 : Sep 24 09:24:26.861 2026 GMT Extensions: 00:00:05:00:13:EF:66:73 Signature : ecdsa-with-SHA256 30:45:02:21:00:CD:88:CF:9F:A5:3A:77:EA:E9:D7:3E: 40:28:74:F0:D0:07:D8:78:F5:C6:AB:F7:10:7C:97:65: 2B:DD:FA:B5:48:02:20:23:5D:E2:5B:54:5E:DA:B9:80: 82:DC:0C:7C:E6:D5:6B:B3:49:A4:C1:25:15:1A:7D:D5: 38:78:B4:77:B2:9A:D7
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: TLS_AES_256_GCM_SHA384 · Checked 2026-09-30T05:52:24+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
703
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
2164
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-----
MIIF9DCCA9ygAwIBAgIRAPJLbRf52a18scn+p4eCaZ8wDQYJKoZIhvcNAQELBQAw
TzELMAkGA1UEBhMCVVMxKTAnBgNVBAoTIEludGVybmV0IFNlY3VyaXR5IFJlc2Vh
cmNoIEdyb3VwMRUwEwYDVQQDEwxJU1JHIFJvb3QgWDEwHhcNMjYwNTEzMDAwMDAw
WhcNMzIwOTAyMjM1OTU5WjAuMQswCQYDVQQGEwJVUzENMAsGA1UEChMESVNSRzEQ
MA4GA1UEAxMHUm9vdCBZUjCCAiIwDQYJKoZIhvcNAQEBBQADggIPADCCAgoCggIB
ANvGJnN78CTJdWL3+eGfsLN5TrNBJs+VH9hRXqRbwxu9sGNiB0BD1fcOxbSUQCJI
M1xE13Db+5Cw1w0s0EBYsvuIP/6joF0w8cuImbgR1OGgYbSQ4OpzI+DG8SGuTlcE
873OCS+kh3srlo6vl43M5OJg4Aeo1sfHp6kTJDoIiFBNJAY+OKfX/FUvYKuhjT+n
o49lmqmupSBI5PkBQiqrEGtWU5uxU/cQWHGu8jSjFBznZqvbNPLMXMLFxCb3WTfr
JBXXjqvWG+v4bjzxjjeAtOlU7qarRDvNOyAuQYLln904M+faKx8hnLCpJ15ZqaEg
cNlY+9MMWcC5yvL2A2j3l9+2buggZX+dOE91zYmIdawTvSZuVvlbRrAlLxIB6pwM
BjneXCjYQ8+3BCCjssbSNpZU3hTcBDdhfAlEDlYr6pEatnMdmDT5BqnKC92bd0Eh
M1fbLHioLccLCuievT8ZkPhZrq7Mii7gNXAcUEAR8+lzYal+9zTg7C5DALyVOeG/
CqfRAMn1KSHCR0NSA6P8tn/mGRlnCct5rtVCLnVySVpU6H1qGg3DgTOuskf8eahT
MiYbI5ezPJmO5ertalskQ1utp74+eDy92PI4ftHKTbq9IWhH4YZKh3WnJEIt+oQv
lYZbY8tpEroKrFB6PFGzrJIDRyts4HqvuH52RFj2zv/BAgMBAAGjgeswgegwDgYD
VR0PAQH/BAQDAgEGMBMGA1UdJQQMMAoGCCsGAQUFBwMBMA8GA1UdEwEB/wQFMAMB
Af8wHQYDVR0OBBYEFN7nW2DQIm1AKH0/DQH+pLVStFGUMB8GA1UdIwQYMBaAFHm0
WeZ7tuXkAXOACIjIGlj26ZtuMDIGCCsGAQUFBwEBBCYwJDAiBggrBgEFBQcwAoYW
aHR0cDovL3gxLmkubGVuY3Iub3JnLzATBgNVHSAEDDAKMAgGBmeBDAECATAnBgNV
HR8EIDAeMBygGqAYhhZodHRwOi8veDEuYy5sZW5jci5vcmcvMA0GCSqGSIb3DQEB
CwUAA4ICAQA8spSI95KKfn2W6GMmDpHBJSPaLbsS3W93cijJCRCYAc1fsJgL1FIL
7C0C9ecPOdcwB2fi0Dk2p94j9iTJCxmt5CFSKLRWwnXT2MMSXexVxqoVB79BdWPx
VXETkVme/qYSAuKVHh5Ps+5BixgmwS1JkjSAc+MfrUbNssVEEnH0aEiAh+rotXAV
JSP/Ye7LJPEwD9DWG72vVWbhAcuOf5OLjz57Ctk7MgQHynZ7+PlHJtajroCaIbtC
r6tcZZaAwUQm+jQyeWdV+2hv9deOYFmKeQyjjcSrN5Nadrw+L9DZJLbA1HqeNvLh
BgqpP0fvJq2N6EtD574N6eMI7uMsJTnji2UDz9el5XLSv9fqJMuDQtYVb2oTNoKp
oUqhxPVC0aq4eG5MESaIdn8b5ZGSSeAJLMHXljEdlNza+ncfkviXk1POLnnFdvx8
/gk6M374WbLWFXw8N141B/Rl/tINGfl1TxOIiqtiMYkL02RSGb1kq34BL9NPP27z
RGMuHGnzS3hFIrRTfKxrzUZ9RzQWzEG3K6fJ3r2nqSltkeytis9DIBoFY9VmVyjL
M71DMi+y1+TRSJVClEMwvA4yL++7q9XZx5r5wBRWB4kQTKH5qyoZnDw7iiuh1lID
yDFx8r7i9vIJU5HS3moZLkYWAOilMaV9N56A9Bgb6dNcHkvg3NoaYA==
-----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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