olo.konverto.eu

Issued by AlphaSSL CA - SHA256 - G2

About this certificate

This digital certificate with serial number 06:73:05:8c:83:79:09:05:e2:8a:19:e4 was issued on by GlobalSign nv-sa.

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=olo.konverto.eu

GlobalSign nv-sa

Organization: GlobalSign nv-sa
Country: BE

This certificate has expire since

Certificate Details

Serial Number (hex): 06:73:05:8c:83:79:09:05:e2:8a:19:e4
Serial Number (int): 1995962732033950647033928164
Serial Number lenght: 91 bits, 12 octets

SubjectKeyId: 3a:7c:e5:0d:1b:0f:b4:0f:27:64:05:99:98:37:87:77:a4:d8:13:5a
AuthorityKeyId: f5:cd:d5:3c:08:50:f9:6a:4f:3a:b7:97:da:56:83:e6:69:d2:68:f7

Fingerprint (sha1): f7:18:5c:83:15:e2:d8:01:91:00:a8:e3:d2:45:a8:4d:e8:3b:b8:e5
Fingerprint (sha256): 32:e8:04:35:67:7e:cf:d1:b5:2e:9b:9a:0c:59:47:68:27:e1:50:b8:ae:ef:ba:f2:0b:b4:83:fb:90:1c:3a:62

Issuing Certificate URL: http://secure.globalsign.com/cacert/gsalphasha2g2r1.crt

Revocation information

OCSP Server: http://ocsp2.globalsign.com/gsalphasha2g2
CRL Distribution Point: http://crl.globalsign.com/gs/gsalphasha2g2.crl

Check the revocation status for certificate olo.konverto.eu

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for olo.konverto.eu

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

10 extensions
No unhandled critical extensions

CA Certificate

This is not a CA certificate

Subject Alternative Names

olo.konverto.eu

Other certificates including the domain name konverto.eu

(limited to 100 certificates)

Certificate

The complete raw certificate details for olo.konverto.eu 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 1995962732033950647033928164
 . . . . . . . . [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 'BE'
 . . . . . . . . . . . . [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 'GlobalSign nv-sa'
 . . . . . . . . . . . . [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 'AlphaSSL CA - SHA256 - G2'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2022-12-05 09:47:46 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-01-06 09:47:45 +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 'olo.konverto.eu'
 . . . . . . . . [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 759307828602537255636531731986883265986996528328137043025482570558123732201421427503678492026583019307474966105990513663523323489787382308854816064704177721703137937700021827441442565845718782084422917527403944017452184582849948162821911248492366784572107538666365059058786491424527067800244144661111131703985400672565362817586742569633276546534976347168745844736393364337336125803366580305019187583674185812840932169691437256453826070880500432093399436517067227061737962178199458642177355056868494949354695661367265277683102906120170489676458483829114479241976313696859517077922964195591920807235384561264301366998127119536626770578852504675537782122543443655302363676463941964631569284244974190013821892381604424101527370636343853942553191647452379940285770305089161244169823582046180973308410847195933065241974717490442049033619105925939196054047621101285104141913421570894389816133197867151827259388399187192106978260698292254870128495317439867850832525420280155472278332672464290503662360205946130218572337397337991905331485061487590115840190782380533211109741401545100050336044217028604496480093555770824497252713819430305857919487860002168470531862649540448994400401411877256359294987926752131557320085714894919091073640071493
 . . . . . . . . . . . . . . . . . . . . [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 1.3.6.1.5.5.7.1.1 (authorityInfoAccess)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (126 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.48.2 (caIssuers)
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:6|false] IA5String 'http://secure.globalsign.com/cacert/gsalphasha2g2r1.crt'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [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://ocsp2.globalsign.com/gsalphasha2g2'
 . . . . . . . . . . . . . . . . [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 (80 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.4.1.4146.1.10.10 (Domain Validation Certificates Policy - AlphaSSL)
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [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 'https://www.globalsign.com/repository/'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [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 2.5.29.19 (basicConstraints)
 . . . . . . . . . . . . . . . . . . . . [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 2.5.29.31 (cRLDistributionPoints)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (56 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:0|true] OtherName 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:0|true] OtherName 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:6|false] IA5String 'http://crl.globalsign.com/gs/gsalphasha2g2.crl'
 . . . . . . . . . . . . . . . . [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 (19 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'olo.konverto.eu'
 . . . . . . . . . . . . . . . . [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 2.5.29.35 (authorityKeyIdentifier)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (24 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:0|false] OtherName f5cdd53c0850f96a4f3ab797da5683e669d268f7
 . . . . . . . . . . . . . . . . [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)
							3a7ce50d1b0fb40f2764059998378777a4d8135a
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.4.1.11129.2.4.3 (CT Precertificate Poison)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:1|false] BOOLEAN true
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (2 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:5|false] NULL 
 . . . . [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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