centra.dev

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:8d:07:73:24:a9:f4:b0:da:72:1f:bb:d1:a9:4c:34:05:6a was issued on by Let's Encrypt.

With 11 subject alternative names this certificate can be used to secure multiple fqdn's. 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=centra.dev

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:8d:07:73:24:a9:f4:b0:da:72:1f:bb:d1:a9:4c:34:05:6a
Serial Number (int): 309326573984874322545787703240637119989098
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: de:11:4a:c0:ba:f2:d0:71:c8:bd:a6:f5:88:32:21:28:46:26:90:c5
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 4a:f5:01:38:bd:a2:e9:45:d1:50:e8:62:0a:68:9e:d2:63:9d:d0:e5
Fingerprint (sha256): 19:a7:7c:d6:2e:42:9f:4b:3b:4d:58:26:e9:de:a2:10:ae:53:01:87:18:5d:48:ef:62:00:11:80:0a:c1:7d:df

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 centra.dev

11

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for centra.dev

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

api-docs.centra.com
career.centra.com
careers.centra.com
centra.dev
centrahq.com
cloudflare.centra.dev
developer.centra.com
developers.centra.com
files.youngskilled.com
www.centra.dev
www.centrahq.com

Other certificates including the domain name centra.dev

(limited to 100 certificates)

Certificate

The complete raw certificate details for centra.dev in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEArxgfDJo5u9sg1SFufQIL
WeAjqna2j53tDtKuIRcbY0/I8aIMyDSXL9e1/fjLBkXNLKAg3Is5CygpOTVNlbE1
7E0rl3t7BnCNhF/VeV0c4B6R9FdJUtjhFuVDhIGaucgpmugjbM+VVISrU13JA1am
/sU3vInFhCWFXybQDsHiJWHWwAKTEs3IpmwG3zvcfmUDiMyU9KVBpFXYA5yfOQNE
J1O0ro4zShcHartM7t81M9KAk53hPvx/OgbyDSyDC25Nt9Aqdu8gw9v7ej8ox3zF
EtA+GO9k+nugYO7qV4FwIAkxoCADC3P3z6hNMTR+EHL6kzmOxCsWeBxqAPeJF4qM
cQIDAQAB
-----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 309326573984874322545787703240637119989098
 . . . . . . . . [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 2019-12-11 01:08:19 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-03-10 01:08:19 +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 'centra.dev'
 . . . . . . . . [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 22103598018530197460344186369219287987699948857769323096522758157901102756341776692475836825656513554256242078860387123212442173557959876421769240985695235985442204494582861424807764191383420281210644721869524033387090580689335391669797802482663044547491352475498795070409035077327606515508143755829213076132152679173774610797033558921446604129877107535092934199641388935875903506198576300193910888729466661066427226939254877869162394988283590308068814175147358109203904807838813576555421138452131703154867784725753178670128369929810356298556153697746771675594120402196409684857093330568826280268308260062949760732273
 . . . . . . . . . . . . . . . . . . . . [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)
							de114ac0baf2d071c8bda6f588322128462690c5
 . . . . . . . . . . . . . . . . [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 (215 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'api-docs.centra.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'career.centra.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'careers.centra.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'centra.dev'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'centrahq.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'cloudflare.centra.dev'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'developer.centra.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'developers.centra.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'files.youngskilled.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.centra.dev'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.centrahq.com'
 . . . . . . . . . . . . . . . . [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 (247 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (244 bytes)
							00f2007700f095a459f200d18240102d2f93888ead4bfe1d47e399e1d034a6b0a8aa8eb2730000016ef2b6d6d20000040300483046022100b477e7d0b8086e53494b1c69b5c8480cf0592bc79704b6de01648cbd9a9d2de7022100d196b736edf38eb8b0398df92bc63e5b869290f754fe289f87f3d700c5f89b5f007700b21e05cc8ba2cd8a204e8766f92bb98a2520676bdafa70e7b249532def8b905e0000016ef2b6d6c70000040300483046022100885fa5e252badfe9e6a775c26ced61e9faba4396ae155456f0e3d9b61c1c78ff022100c088bef57fec0253d9217a361e7e6913a57a2736efc50818c0391a70d15da36e
 . . . . [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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