geofon.com

Issued by R3

About this certificate

This digital certificate with serial number 03:4b:8b:b5:86:ba:95:2a:d5:e8:dd:69:8a:5e:2a:8a:e4:e3 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:
  • DV certificate contains a subject common name, this is not recommended. If certificate policy 2.23.140.1.2.1 (CA/B BR domain validated) is included, only country and/or common name is allowed in SubjectDN. (BRs: 7.1.2.7.2)
  • Subscriber certificates use of Subject Key Identifier is NOT RECOMMENDED (BRs v2: 7.1.2.7.6)
  • Subscriber Certificate: commonName is NOT RECOMMENDED. (BRs: 7.1.2.7.1)

Certificate Subject

CN=geofon.com

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:4b:8b:b5:86:ba:95:2a:d5:e8:dd:69:8a:5e:2a:8a:e4:e3
Serial Number (int): 287043740544122112978243655008818364605667
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 4d:46:25:28:06:94:32:5a:91:89:4f:96:6b:7a:5a:65:6a:f0:c4:f9
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 5a:73:47:1c:1c:4a:77:01:70:cb:02:47:63:d4:a2:60:69:88:cc:f4
Fingerprint (sha256): 57:c7:a7:01:86:b3:fa:3e:3d:83:f2:c6:99:3d:6a:2b:d6:c4:14:22:c1:0e:20:4f:32:76:57:b0:62:ed:87:07

Issuing Certificate URL: http://r3.i.lencr.org/

Revocation information

OCSP Server: http://r3.o.lencr.org

Check the revocation status for certificate geofon.com

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for geofon.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

9 extensions
No unhandled critical extensions

CA Certificate

This is not a CA certificate

Subject Alternative Names

geofon.com

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geofon.com

Certificate

The complete raw certificate details for geofon.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 287043740544122112978243655008818364605667
 . . . . . . . . [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 'R3'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2023-09-23 11:50:11 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2023-12-22 11:50:10 +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 'geofon.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 872535404553860354184128701278594685429780498141177521479823059766234013471856714023547725645555205545763828442165334209494217590165816606734975674518057412479898222356010700066510952028355510123833376988449226178615417966311465531936232321936569428352923684298881069961323213976687725210667938998904892900768883678258925293915055552873649655873019942121494482612246395283362888480729645948726570981449692679029105199719722800381049383906251575063808009766858411866394763448283447595364595350518801878407321445185073932508243644330925118566112332031280653826069748262431887474844598675172602073031619089240218422257339424528551466563216520658962356547939233813724527909340035421570707574025756320682745978478396690675490072447438019057712871091775058992483489588794575548576485240051527844767730277641395633479204817869164596188988944409847658566660833540938158707769513010582483997343873967202467397688148898462865904530598993371864499902935616920632583237945276843946236095307995906016520931507269903003536140457789600730559489938294973287997309568931081650936221704161210900506021971116824820811560017399829357212359375113316161334952289430937583764434435611563375054469544923011281522365391719801992688973353988218922873674698407
 . . . . . . . . . . . . . . . . . . . . [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)
							4d4625280694325a91894f966b7a5a656af0c4f9
 . . . . . . . . . . . . . . . . [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 142eb317b75856cbae500940e61faf9d8b14c2c6
 . . . . . . . . . . . . . . . . [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 (73 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://r3.o.lencr.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://r3.i.lencr.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 (14 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'geofon.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 (12 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 1.3.6.1.4.1.11129.2.4.2
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (243 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (240 bytes)
							00ee007500b73efb24df9c4dba75f239c5ba58f46c5dfc42cf7a9f35c49e1d098125edb4990000018ac217242000000403004630440220132794f900a962ede4d22fe8327121e0c8a68aa4deb01d105d375205c9a3a61d0220208f9eb168ded4a6ac6c6408c5534661e5cdaa4047b24ce4d12b759d27cbb3cb0075007a328c54d8b72db620ea38e0521ee98416703213854d3bd22bc13a57a352eb520000018ac2172431000004030046304402203aae13be038d70aef6678e4ec21d5f7124d5384d8d80309637193bd5e39df4f002201ccd9b488178f6da5d94f74676b25b406b17d3f87cdac6a001383de0463ae1a2
 . . . . [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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