bgpcrunch.labs.nic.cz

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:42:ae:15:ce:04:2f:86:c7:48:df:4e:55:ab:68:e3:8f:a2 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=bgpcrunch.labs.nic.cz

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:42:ae:15:ce:04:2f:86:c7:48:df:4e:55:ab:68:e3:8f:a2
Serial Number (int): 284026892900071282856637666986133612105634
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 0d:51:db:cb:ef:3f:37:64:0b:9a:dd:fa:17:e9:48:6d:0d:57:89:cb
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 21:0c:2a:16:ef:65:6d:3a:de:d4:80:7d:76:35:49:5a:63:1a:e5:5e
Fingerprint (sha256): 08:37:4f:55:36:a8:2b:de:e5:a4:7c:04:24:b1:71:72:5e:32:3f:07:6d:ad:87:5a:62:88:e1:01:5f:ca:e9:68

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 bgpcrunch.labs.nic.cz

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for bgpcrunch.labs.nic.cz

Public Key Algorithm

RSA

Key Size

4096

Signature Algorithm

SHA256 with RSA

Key Usage

Digital Signature
Key Encipherment

Extended Key Usages

Server Authentication
Client Authentication

Extensions

8 extensions
No unhandled critical extensions

CA Certificate

This is not a CA certificate

Subject Alternative Names

bgpcrunch.labs.nic.cz

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Certificate

The complete raw certificate details for bgpcrunch.labs.nic.cz in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEA+48FT0phzGLpFo9A+fnv
sCqX7li/y3R4uZw3oxyUoj8smkivCAJUJjBgsgrE26gjMgokmqvNJhNiqKctRr5w
t746iJPTv+KdYkUudfoV4Y8Kb+XWlD17YlNNiB5kmRAwPJSX2sp7s1xp+YgYA6/F
Ca/dVxEoFnR/wr5tXgP1pLY/cGffzg8D/QPkjkFWdnnWaJmBjxIks5y+Jq5jhqQR
3L2dR8EQv1qcPoU+M+PICf2Z7vLszwCjUwllsiQmS211UOhnZKG27FQKgI1q1/Hl
YkgoanlRUgm8nHZbB3cei/H8ewv53JAIlVu99xiM7Sfa4KPrIbsRphcanD8GSmo1
jGTMjoJSyLuj8WPgUV4av/raHJI1FYgTyymr4SZL8aav7b6KreXxmx1Nym1MX1Sj
pEXDp157pyEoYDqNqbyyJ2D7hUSZoc0mO3KWGwNGdzN+8d4pX7h58XxcfvqpE1sD
8un4eNwvWhVH3hiliz+5d4kXY7tlWXkwMzTL8ZPtPdIdwAIt58haiwxBt60DMCwU
6/HddjglwNXCGWPMsYPFKhOKK6Dd/wI5I/esKR/k+DXeCClqjJzoqV0w0kEUz9AA
dxfvjw6jzL2doezDijhtnpiDjAUk57sd4eBD1UfRHtAybysAt+BM8y+ARpGVWZA3
grGNXh7sSpdNd+KD6S8Qz8MCAwEAAQ==
-----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 284026892900071282856637666986133612105634
 . . . . . . . . [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 2016-10-12 12:21:00 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2017-01-10 12:21:00 +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 'bgpcrunch.labs.nic.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 (4208 bits)
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 1026269855284559980830619034226617592533923256968964186895433978041796677601385432869240804584126329584332968082052356083691558243547020135925275726825580172261520464221450748660356366722999311443299782977336988515195123280981575687352940370789627063016443827228120012648913501637728495562093460013596256601055499385698160386612511106437513097127077133706819563611003258924799572251591089409716457550137956212174819920221001041063494420679646454101906438043633935125321436010413094924992003190550747468606492132618586931890466751896123617476926783878599078574006910462859769346902150808828378593298287718530077701283608581927959948050509236221885307345679366322406528883488881793279514964466259454836673625476230190024026054556021027518948397960578099211764479358042742760417394953604778792729357062791325265686894546301850397053632985598223842890695735174780887120682159189646028785318128609495788505865622060020836718813152226649548306846942702121247007559696098405537029647976161377875413939487785695587458307303745322998479541080778681497990603962412988639437424810553556032593957063208472184817372080479146543704927121012747296487786795627464897215134986990829745492445509225476198210884495663478507676512114627246638229374422979
 . . . . . . . . . . . . . . . . . . . . [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)
							0d51dbcbef3f37640b9addfa17e9486d0d5789cb
 . . . . . . . . . . . . . . . . [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 (100 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 (25 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'bgpcrunch.labs.nic.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 (246 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 1.3.6.1.5.5.7.2.2 (unotice)
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:12|false] UTF8String 'This Certificate may only be relied upon by Relying Parties and only in accordance with the Certificate Policy found at https://letsencrypt.org/repository/'
 . . . . [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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