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

controld.com · 147.185.34.1:443

Verified
The certificate expires within 30 days.

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

Subject
CN=controld.com
Issuer
C=US O=Let's Encrypt CN=YR1
Valid from
2026-08-28T22:42:40+00:00
Expires
2026-11-26T22:42:39+00:00
Days remaining
29
Serial (hex)
055AE5734758DBA4E4A690851704611FE331
Signature
RSA-SHA256
Public key
RSA 4096

Subject alternative names (SAN)

DNS:*.controld.com, DNS:*.controld.io, DNS:*.dns.controld.com, DNS:*.freedns.controld.com, DNS:*.int.controld.com, DNS:*.ipv4.controld.io, DNS:*.ipv6.controld.io, DNS:*.verify.controld.com, DNS:controld.com

SHA-256 fingerprint

A3:E4:C3:CA:F2:1A:58:6D:83:DD:51:B5:EF:3E:79:34:A8:53:68:4D:B7:ED:2D:12:9D:F5:95:EA:1D:6B:DA:F6
Certificate extensions & PEM
keyUsage
Digital Signature, Key Encipherment
extendedKeyUsage
TLS Web Server Authentication
basicConstraints
CA:FALSE
subjectKeyIdentifier
79:EF:B4:20:20:62:D7:37:D2:D9:D2:4C:80:12:72:B8:E0:5D:3D:C2
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:*.controld.com, DNS:*.controld.io, DNS:*.dns.controld.com, DNS:*.freedns.controld.com, DNS:*.int.controld.com, DNS:*.ipv4.controld.io, DNS:*.ipv6.controld.io, DNS:*.verify.controld.com, DNS:controld.com
certificatePolicies
Policy: 2.23.140.1.2.1
crlDistributionPoints
Full Name: URI:http://yr1.c.lencr.org/50.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 : Aug 28 23:41:10.952 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:20:5A:54:DD:79:CA:4A:18:FE:B4:6C:78:4C: 52:F7:14:75:80:BB:EC:01:1C:7C:E9:8E:A6:CC:05:B6: 1D:49:89:C3:02:21:00:90:C0:1D:6D:D0:12:DF:D3:7C: C2:12:B9:34:8F:CC:17:69:75:8A:47:48:AB:0B:FE:BE: F0:A2:E5:24:3B:D7:53 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 : Aug 28 23:41:11.032 2026 GMT Extensions: 00:00:05:00:29:28:7F:04 Signature : ecdsa-with-SHA256 30:45:02:20:5F:F4:8B:23:E8:01:71:DE:CC:AF:EB:83: 98:4D:D7:4C:85:0B:C1:4D:F5:42:8B:F2:AC:D5:AE:71: EB:31:A8:BC:02:21:00:CF:C6:5A:F1:DF:F6:07:CE:71: CB:11:73:36:9F:D8:04:AD:3E:CD:6F:04:B7:78:37:B9: 49:66:2C:3D:F1:49:72
-----BEGIN CERTIFICATE-----
MIIGkzCCBXugAwIBAgISBVrlc0dY26TkppCFFwRhH+MxMA0GCSqGSIb3DQEBCwUA
MDMxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MQwwCgYDVQQD
EwNZUjEwHhcNMjYwODI4MjI0MjQwWhcNMjYxMTI2MjI0MjM5WjAXMRUwEwYDVQQD
Ewxjb250cm9sZC5jb20wggIiMA0GCSqGSIb3DQEBAQUAA4ICDwAwggIKAoICAQDS
zMthNJp+iCUKYWY7FXEt0E8VUqy+RL44hcj/jOhCnl7yrcDXQsV/rTv+9fcbvtIM
YPGgl/zVSq+5Nh+bLlxEXe0GLNZTgjL0KPl5xs5RG1ERQ0Ia23QFXJ2szOXKj2vI
tfIQ1V9zMlhEHMIpzBmIPaLRHQqrc80GDvvmVgGYtNGscSGL7W2WHv6XlXIWWfOm
fy7uwqQ3XmAsX0DXDtFzDYTco1z3Sf7lfgafxF8wQX6nFf5g9rTpBUlr5zLnu1IC
QJvOyVEvGGm373Hkb9x182OUFyYTx65wuCn5/0N73l8//L5lG00jvbYxhn3CTqT9
DK5++6A8LAmFKsAwgtI+M3UUxs5nqcwY3Qmh0AS57oR3IoFdwONqUsxcuv559TML
WdC5gKZL/+YLR4g7NbcHcRn6CaS0aLvFy5ScsxuOL/aXYheyDFDHTNf0EZHnRB4G
e01MVqhYQqYK8uMwUnBtBcUDep+OhEtK3SoVwhyhTbln40G3sh6uL9A6kIxWuLoZ
SZ2Mao/HjCqm1mrd1H1ger9IjZKaK17yN2FPnHbUvHZDsGG4dGjrznkODHHyq+Ca
XPOi+zDni9phcwn9DMZuGGWB8Xy+CE8rTs5Qhb1yGJnDifh6xZnw9HZ+9mPMGBJh
PmhPca1zLvm+m6FMYyy5SCwMFsCuYZ3vSQDkZFZXawIDAQABo4ICuzCCArcwDgYD
VR0PAQH/BAQDAgWgMBMGA1UdJQQMMAoGCCsGAQUFBwMBMAwGA1UdEwEB/wQCMAAw
HQYDVR0OBBYEFHnvtCAgYtc30tnSTIAScrjgXT3CMB8GA1UdIwQYMBaAFB8vNb5G
FILNQLGueSxVePr31Gj7MDMGCCsGAQUFBwEBBCcwJTAjBggrBgEFBQcwAoYXaHR0
cDovL3lyMS5pLmxlbmNyLm9yZy8wgbcGA1UdEQSBrzCBrIIOKi5jb250cm9sZC5j
b22CDSouY29udHJvbGQuaW+CEiouZG5zLmNvbnRyb2xkLmNvbYIWKi5mcmVlZG5z
LmNvbnRyb2xkLmNvbYISKi5pbnQuY29udHJvbGQuY29tghIqLmlwdjQuY29udHJv
bGQuaW+CEiouaXB2Ni5jb250cm9sZC5pb4IVKi52ZXJpZnkuY29udHJvbGQuY29t
ggxjb250cm9sZC5jb20wEwYDVR0gBAwwCjAIBgZngQwBAgEwLgYDVR0fBCcwJTAj
oCGgH4YdaHR0cDovL3lyMS5jLmxlbmNyLm9yZy81MC5jcmwwggEMBgorBgEEAdZ5
AgQCBIH9BIH6APgAdgDCMX5XRRmjRe5/ON6ykEHrx8IhWiK/f9W1rXaa2Q5SzQAA
AaBKv62oAAAEAwBHMEUCIFpU3XnKShj+tGx4TFL3FHWAu+wBHHzpjqbMBbYdSYnD
AiEAkMAdbdAS39N8whK5NI/MF2l1ikdIqwv+vvCi5SQ711MAfgBs/lAZQ6heqRa8
UtEz5NzJHvFBHH0lhCDRc4CeGBjrOgAAAaBKv634AAgAAAUAKSh/BAQDAEcwRQIg
X/SLI+gBcd7Mr+uDmE3XTIULwU31QovyrNWucesxqLwCIQDPxlrx3/YHznHLEXM2
n9gErT7NbwS3eDe5SWYsPfFJcjANBgkqhkiG9w0BAQsFAAOCAQEAX4pcJobkILz0
RecjbnfNADJQpOks0Q57qEyZmCRPXgY69AGvkcOs++je57oDbj/kcIdw1nFwl7tY
89R4ShMnqnuI8NOECFlyJEqUt6CQ5IGtMhCXaAvemf3S64+rWpqac0XYD0c3Wm2j
frBBmx0Ng8RPO8mLVynCsFiBEGsTdeUEl1tvlyabmpCKwH4dZEaS6z0ilD2yfb99
NXIT9Q8Oc0u7+uRrwtSbck8E+kpIZyWSObG2qEnqlYXwU4bMc18ix7zl86/pz9Pi
i+YV3T7vS0TYKpNAvle1L48+WKZ8ftmgA3xa8uVEvHaZWfcQxilnnM3TsSUo4aTH
GSxM4XUTKQ==
-----END CERTIFICATE-----

Cipher: TLS_AES_256_GCM_SHA384 · Checked 2026-10-28T01:03:24+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
675
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
2136
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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