git.dayunet.com

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:64:07:cf:3d:28:bd:17:03:66:cc:ae:9c:8a:16:5f:c8:d5 was issued on by Let's Encrypt.

With 2 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=git.dayunet.com

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:64:07:cf:3d:28:bd:17:03:66:cc:ae:9c:8a:16:5f:c8:d5
Serial Number (int): 295375475129249430218174562673994896492757
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 03:25:4e:47:40:62:5c:82:2c:4b:f2:78:15:31:3a:a2:4d:94:77:4e
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): db:c1:e1:07:ab:0f:bc:8f:7f:7a:ef:52:54:62:0e:cc:1d:48:48:15
Fingerprint (sha256): ee:6a:9d:ec:64:71:d9:27:39:73:dc:74:79:9e:70:95:a3:1e:be:0a:1f:37:c1:68:3c:4c:d2:ee:46:39:d5:3e

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 git.dayunet.com

2

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for git.dayunet.com

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

git-ssh.dayunet.com
git.dayunet.com

Other certificates including the domain name dayunet.com

(limited to 100 certificates)
dayunet.com
dayunet.com
dayunet.com
dayunet.com
dayunet.com
dayunet.com
dayunet.com
dayunet.com
dayunet.com
*.dayunet.com
www.dayunet.com
dayunet.com
dayunet.com
git.dayunet.com
git.dayunet.com
dayunet.com
dayunet.com
dayunet.com
dayunet.com
hongkong-01.dayunet.com
dayunet.com
git.dayunet.com
dayunet.com

Certificate

The complete raw certificate details for git.dayunet.com in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----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-----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 295375475129249430218174562673994896492757
 . . . . . . . . [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 2016-12-01 07:58:00 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2017-03-01 07:58:00 +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 'git.dayunet.com'
 . . . . . . . . [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 817556797174853901275614108657422139390526663456021821050384272031080186397081805172637818335228454147872514771376367565565401489556559012728126869747180287635119750183166286083916430845366122637661526400117160364604317397674961664307538010796336144181430951706765159685682875910087205100415833687148261303867401055742260681825244082419167432259405740533348650414960213470959570724525416080449786789778538533676611054880966640632851472638998358399723285408859453877755078476784107667045805255195002763028144979799176087855622871095885247175584213278001166401200014860204910325957619471659190580832022193103598809076229861186077534545287827875741622440681360199970425049235021766586783473434473293217668390143367158185291924992519605893044996525581862971878564523536793723052771513430503563781374409789455976787220600240139704330437988410433684635868258219424564730510274880700650904979081364900936798132161050396248346850458482812945496295371650235542286431105778320506615277848452821437958240137702440106457196013382758262037674178252060040818245590700431052271419784582249918089328361712342253881549874077280323108949885189686388986863976103848883237563914442442216614515684412112603716871906410335909222037457806529757118835797887
 . . . . . . . . . . . . . . . . . . . . [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)
							03254e4740625c822c4bf27815313aa24d94774e
 . . . . . . . . . . . . . . . . [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 (40 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'git-ssh.dayunet.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'git.dayunet.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 (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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