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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

catho.com · 3.229.71.19:443

Verified

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

Subject
CN=catho.com.br
Issuer
C=US O=Amazon CN=Amazon RSA 2048 M01
Valid from
2026-09-18T00:00:00+00:00
Expires
2027-04-03T23:59:59+00:00
Days remaining
170
Serial (hex)
018BE114481241546A9041B51EFD4B69
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

DNS:catho.com.br, DNS:*.catho.com, DNS:catho.com, DNS:*.catho.com.br

SHA-256 fingerprint

41:82:BC:3A:CF:01:84:3B:2A:D5:DE:A9:35:37:68:17:2D:48:D4:97:FE:9F:9B:23:BC:BD:78:02:EA:B2:BB:3D
Certificate extensions & PEM
authorityKeyIdentifier
81:B8:0E:63:8A:89:12:18:E5:FA:3B:3B:50:95:9F:E6:E5:90:13:85
subjectKeyIdentifier
12:07:EF:9E:19:2A:A9:68:9A:BF:0E:7A:68:C9:57:02:5F:A9:0A:CC
subjectAltName
DNS:catho.com.br, DNS:*.catho.com, DNS:catho.com, DNS:*.catho.com.br
certificatePolicies
Policy: 2.23.140.1.2.1
keyUsage
Digital Signature, Key Encipherment
extendedKeyUsage
TLS Web Server Authentication
crlDistributionPoints
Full Name: URI:http://crl.r2m01.amazontrust.com/r2m01.crl
authorityInfoAccess
OCSP - URI:http://ocsp.r2m01.amazontrust.com CA Issuers - URI:http://crt.r2m01.amazontrust.com/r2m01.cer
basicConstraints
CA:FALSE
ct_precert_scts
Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 4C:63:DC:98:E5:9C:1D:AB:88:F6:1E:8A:3D:DE:AE:8F: AB:44:A3:37:7B:5F:9B:94:C3:FB:A1:9C:FC:C1:BE:26 Timestamp : Sep 18 04:32:30.776 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:21:00:A9:92:F4:20:85:7C:3F:AB:9E:10:20: 08:0A:60:CE:45:0C:B9:E1:D8:F4:2D:C3:AB:D4:94:51: B1:D0:C6:94:8C:02:20:70:64:E6:FC:65:00:5A:62:2A: 59:FE:A1:25:92:C3:B1:62:2A:04:EE:16:30:67:E6:31: 97:9A:2D:B8:AA:AA:0E Signed Certificate Timestamp: Version : v1 (0x0) Log ID : D6:D5:8D:A9:D0:17:53:F3:6A:4A:A0:C7:57:49:02:AF: EB:C7:DC:2C:D3:8C:D9:F7:64:C8:0C:89:19:1E:9F:02 Timestamp : Sep 18 04:32:30.771 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:20:05:2C:4F:09:80:DE:DE:5E:7C:1A:97:E7: BA:81:11:AC:D4:6C:45:12:AD:C5:0B:BB:EC:C9:4D:10: DF:8E:BC:29:02:21:00:8B:61:1E:92:EA:05:12:DA:E2: BA:59:CC:85:59:21:13:9E:3E:97:A6:AB:F8:D6:CC:9D: A7:86:3C:6C:EB:1C:C8 Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 44:C2:BD:0C:E9:14:0E:64:A5:C9:4A:01:93:0A:5A:A1: BB:35:97:0E:00:EE:11:16:89:68:2A:1C:44:D7:B5:66 Timestamp : Sep 18 04:32:30.840 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:20:70:31:5E:D5:9F:E9:EB:B6:9B:57:37:2E: 3E:CB:1A:75:8C:84:14:9F:A3:82:7E:B0:14:BC:D5:4A: EE:B0:51:66:02:21:00:EB:EE:8F:65:69:B1:2C:3A:C7: 1B:F7:95:DB:93:24:D5:9B:B4:2F:E4:74:E3:15:24:B1: 33:3C:3A:BC:A9:E3:A6
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: TLS_AES_128_GCM_SHA256 · Checked 2026-10-15T04:15:27+00:00

Server-presented chain · 2 additional certificates

Chain certificate 1

Subject
C=US O=Amazon CN=Amazon RSA 2048 M01
Issuer
C=US O=Amazon CN=Amazon Root CA 1
Valid from
2022-08-23T22:21:28+00:00
Expires
2030-08-23T22:21:28+00:00
Days remaining
1408
Serial (hex)
077312380B9D6688A33B1ED9BF9CCDA68E0E0F
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

53:38:EB:EC:8F:B2:AC:60:99:61:26:D3:E7:6A:A3:4F:D0:F3:31:8A:C7:8E:BB:7A:C8:F6:F1:36:1F:48:4B:33
Certificate extensions & PEM
basicConstraints
CA:TRUE, pathlen:0
keyUsage
Digital Signature, Certificate Sign, CRL Sign
extendedKeyUsage
TLS Web Server Authentication, TLS Web Client Authentication
subjectKeyIdentifier
81:B8:0E:63:8A:89:12:18:E5:FA:3B:3B:50:95:9F:E6:E5:90:13:85
authorityKeyIdentifier
84:18:CC:85:34:EC:BC:0C:94:94:2E:08:59:9C:C7:B2:10:4E:0A:08
authorityInfoAccess
OCSP - URI:http://ocsp.rootca1.amazontrust.com CA Issuers - URI:http://crt.rootca1.amazontrust.com/rootca1.cer
crlDistributionPoints
Full Name: URI:http://crl.rootca1.amazontrust.com/rootca1.crl
certificatePolicies
Policy: 2.23.140.1.2.1
-----BEGIN CERTIFICATE-----
MIIEXjCCA0agAwIBAgITB3MSOAudZoijOx7Zv5zNpo4ODzANBgkqhkiG9w0BAQsF
ADA5MQswCQYDVQQGEwJVUzEPMA0GA1UEChMGQW1hem9uMRkwFwYDVQQDExBBbWF6
b24gUm9vdCBDQSAxMB4XDTIyMDgyMzIyMjEyOFoXDTMwMDgyMzIyMjEyOFowPDEL
MAkGA1UEBhMCVVMxDzANBgNVBAoTBkFtYXpvbjEcMBoGA1UEAxMTQW1hem9uIFJT
QSAyMDQ4IE0wMTCCASIwDQYJKoZIhvcNAQEBBQADggEPADCCAQoCggEBAOtxLKnL
H4gokjIwr4pXD3i3NyWVVYesZ1yX0yLI2qIUZ2t88Gfa4gMqs1YSXca1R/lnCKeT
epWSGA+0+fkQNpp/L4C2T7oTTsddUx7g3ZYzByDTlrwS5HRQQqEFE3O1T5tEJP4t
f+28IoXsNiEzl3UGzicYgtzj2cWCB41eJgEmJmcf2T8TzzK6a614ZPyq/w4CPAff
nAV4coz96nW3AyiE2uhuB4zQUIXvgVSycW7sbWLvj5TDXunEpNCRwC4kkZjK7rol
jtT2cbb7W2s4Bkg3R42G3PLqBvt2N32e/0JOTViCk8/iccJ4sXqrS1uUN4iB5Nmv
JK74csVl+0u0UecCAwEAAaOCAVowggFWMBIGA1UdEwEB/wQIMAYBAf8CAQAwDgYD
VR0PAQH/BAQDAgGGMB0GA1UdJQQWMBQGCCsGAQUFBwMBBggrBgEFBQcDAjAdBgNV
HQ4EFgQUgbgOY4qJEhjl+js7UJWf5uWQE4UwHwYDVR0jBBgwFoAUhBjMhTTsvAyU
lC4IWZzHshBOCggwewYIKwYBBQUHAQEEbzBtMC8GCCsGAQUFBzABhiNodHRwOi8v
b2NzcC5yb290Y2ExLmFtYXpvbnRydXN0LmNvbTA6BggrBgEFBQcwAoYuaHR0cDov
L2NydC5yb290Y2ExLmFtYXpvbnRydXN0LmNvbS9yb290Y2ExLmNlcjA/BgNVHR8E
ODA2MDSgMqAwhi5odHRwOi8vY3JsLnJvb3RjYTEuYW1hem9udHJ1c3QuY29tL3Jv
b3RjYTEuY3JsMBMGA1UdIAQMMAowCAYGZ4EMAQIBMA0GCSqGSIb3DQEBCwUAA4IB
AQCtAN4CBSMuBjJitGuxlBbkEUDeK/pZwTXv4KqPK0G50fOHOQAd8j21p0cMBgbG
kfMHVwLU7b0XwZCav0h1ogdPMN1KakK1DT0VwA/+hFvGPJnMV1Kx2G4S1ZaSk0uU
5QfoiYIIano01J5k4T2HapKQmmOhS/iPtuo00wW+IMLeBuKMn3OLn005hcrOGTad
hcmeyfhQP7Z+iKHvyoQGi1C0ClymHETx/chhQGDyYSWqB/THwnN15AwLQo0E5V9E
SJlbe4mBlqeInUsNYugExNf+tOiybcrswBy8OFsd34XOW3rjSUtsuafd9AWySa3h
xRRrwszrzX/WWGm6wyB+f7C4
-----END CERTIFICATE-----

Chain certificate 2

Subject
C=US O=Amazon CN=Amazon Root CA 1
Issuer
C=US ST=Arizona L=Scottsdale O=Starfield Technologies, Inc. CN=Starfield Services Root Certificate Authority - G2
Valid from
2015-05-25T12:00:00+00:00
Expires
2037-12-31T01:00:00+00:00
Days remaining
4094
Serial (hex)
067F944A2A27CDF3FAC2AE2B01F908EEB9C4C6
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

87:DC:D4:DC:74:64:0A:32:2C:D2:05:55:25:06:D1:BE:64:F1:25:96:25:80:96:54:49:86:B4:85:0B:C7:27:06
Certificate extensions & PEM
basicConstraints
CA:TRUE
keyUsage
Digital Signature, Certificate Sign, CRL Sign
subjectKeyIdentifier
84:18:CC:85:34:EC:BC:0C:94:94:2E:08:59:9C:C7:B2:10:4E:0A:08
authorityKeyIdentifier
9C:5F:00:DF:AA:01:D7:30:2B:38:88:A2:B8:6D:4A:9C:F2:11:91:83
authorityInfoAccess
OCSP - URI:http://ocsp.rootg2.amazontrust.com CA Issuers - URI:http://crt.rootg2.amazontrust.com/rootg2.cer
crlDistributionPoints
Full Name: URI:http://crl.rootg2.amazontrust.com/rootg2.crl
certificatePolicies
Policy: X509v3 Any Policy
-----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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