crab.uzsvm.cz

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:d7:2f:1b:26:10:b1:8b:e6:9b:04:7c:a9:48:9d:92:a5:8d was issued on by Let's Encrypt.

This certificate has already expired and will cause a warning or error message in the browser it's still listed on this site to allow you to look back on previously issued certificates. If we have found any compliance issues with this certificate they will be shown below. I hope this certificate review is providing you the detailed information in a simple form you where looking for.


We have idenified some issues with this certificate:
  • Subscriber Certificate: commonName is deprecated. (BRs: 7.1.4.2.2)

Certificate Subject

CN=crab.uzsvm.cz

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:d7:2f:1b:26:10:b1:8b:e6:9b:04:7c:a9:48:9d:92:a5:8d
Serial Number (int): 334560181363153744586292558093620029334925
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 30:0b:44:07:8c:42:61:30:37:9e:83:e2:1e:e6:16:01:09:6a:bf:f0
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 86:b4:27:42:52:fe:8e:8d:46:73:c2:6e:5f:ab:dd:02:99:25:47:12
Fingerprint (sha256): 9f:a8:fa:c4:69:43:cf:bd:45:1c:87:be:ea:3c:86:84:4d:ea:7c:91:9b:df:b0:c2:bc:3d:bd:04:16:33:f9:83

Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/

Revocation information

OCSP Server: http://ocsp.int-x3.letsencrypt.org

Check the revocation status for certificate crab.uzsvm.cz

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for crab.uzsvm.cz

Public Key Algorithm

RSA

Key Size

2048

Signature Algorithm

SHA256 with RSA

Key Usage

Digital Signature
Key Encipherment

Extended Key Usages

Server Authentication
Client Authentication

Extensions

9 extensions
No unhandled critical extensions

CA Certificate

This is not a CA certificate

Subject Alternative Names

crab.uzsvm.cz

Other certificates including the domain name uzsvm.cz

(limited to 100 certificates)

Certificate

The complete raw certificate details for crab.uzsvm.cz in PEM and ASN.1 format.

Certificate (PEM)

-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEArQSxQXIuFAKiljmeD+7G
LFK01XvJQNOaxn9jRPr2LshujmrZ0fCLp7kMMwnSbCRPz2fRRUwrj1euS1nwH3i9
67mgLLk9y/WIRy9kOFFzCXbBQXnW6k7smSthedFKVjJ1UD1rL9Y5RuMRsQAhmpHl
9T6in5s90cK5EX6S0kJ+eFM66+BeUgtYcythZnmP9yTvq9E4UJU8hr67BgP3Phid
uAyT2FUJKAEB3JCf1BWaTqk+sb/ZuVQMP8blUl97Vp/i0W9BTc7nanogzFEfkn4o
ffUj0e7/12pdo3EDWIYXOgR28+os4k/5QMydtdq8Oz6duJUagfiyH6DGWtuaxOwc
EQIDAQAB
-----END PUBLIC KEY-----

ASN.1 decoded

 [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . [c:2|t:0|true] OtherName 
 . . . . . . . . . . . . [c:0|t:2|false] INTEGER 2
 . . . . . . . . [c:0|t:2|false] INTEGER 334560181363153744586292558093620029334925
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.113549.1.1.11 (sha256WithRSAEncryption)
 . . . . . . . . . . . . [c:0|t:5|false] NULL 
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF 
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.6 (countryName)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'US'
 . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF 
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.10 (organizationName)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'Let's Encrypt'
 . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF 
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.3 (commonName)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'Let's Encrypt Authority X3'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-12-20 22:11:52 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-03-19 22:11:52 +0000 UTC
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF 
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.3 (commonName)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'crab.uzsvm.cz'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.113549.1.1.1 (rsaEncryption)
 . . . . . . . . . . . . . . . . [c:0|t:5|false] NULL 
 . . . . . . . . . . . . [c:0|t:3|false] BIT STRING (2160 bits)
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 21841540670213611391140212474023673853906369083498300656143134655076085743294083572755166410511474139778071696978051941626825366046007912891300259487715549022251175949381053772859701119449503232778563061027431170587785986648327242532013632800520571388758100790663373510075067617062549395969721233386616321917878402276890590230925505431329520631374701813148756845653814523167100350904324671265030201990206428962394901677652867097048147511442622379086036289934177823269015949313639883820297488580426372341202107487944170232149123327455684232006269227881730639734172652730825344116648313227686393512428438686512490224657
 . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 65537

 . . . . . . . . [c:2|t:3|true] ORAddress 
 . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.15 (keyUsage)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:1|false] BOOLEAN true
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (4 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:3|false] BIT STRING (3 bits)
							05a0
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.37 (extKeyUsage)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (22 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.3.1 (serverAuth)
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.3.2 (clientAuth)
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.19 (basicConstraints)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:1|false] BOOLEAN true
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (2 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.14 (subjectKeyIdentifier)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (22 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (20 bytes)
							300b44078c426130379e83e21ee61601096abff0
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.35 (authorityKeyIdentifier)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (24 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:0|false] OtherName a84a6a63047dddbae6d139b7a64565eff3a8eca1
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.1.1 (authorityInfoAccess)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (99 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.48.1 (ocsp)
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:6|false] IA5String 'http://ocsp.int-x3.letsencrypt.org'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.48.2 (caIssuers)
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:6|false] IA5String 'http://cert.int-x3.letsencrypt.org/'
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.17 (subjectAltName)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (17 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'crab.uzsvm.cz'
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.32 (certificatePolicies)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (69 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.23.140.1.2.1 (Domain Validation Certificates Policy)
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.4.1.44947.1.1.1
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.2.1 (cps)
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:22|false] IA5String 'http://cps.letsencrypt.org'
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.4.1.11129.2.4.2
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (246 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (243 bytes)
							00f10077005ea773f9df56c0e7b536487dd049e0327a919a0c84a1121284187596817145580000016f2594e5ff00000403004830460221009c914f0aa37ae870b9ef3e0f390834bcf940a7bd9c061e08519d0ee2aed38621022100fa86e9057cdf50ab335b7f543ae329a8dfc4d02c8464dd41b9907e011ca3bdcd007600b21e05cc8ba2cd8a204e8766f92bb98a2520676bdafa70e7b249532def8b905e0000016f2594e61000000403004730450220555f55f69378a027dc1cba57747d38f730c99c0810f3cadf508a5bad2d2d8b870221008531ad67d08d8cbe27eb9949526287abbc670f6341bda94cfcc097d553af12d4
 . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.113549.1.1.11 (sha256WithRSAEncryption)
 . . . . . . . . [c:0|t:5|false] NULL 
 . . . . [c:0|t:3|false] BIT STRING (2048 bits)
		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