www.ridehugo.com

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:3c:b0:41:c6:4c:91:4f:c5:9a:24:95:65:6d:3c:fe:58:5d 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=www.ridehugo.com

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:3c:b0:41:c6:4c:91:4f:c5:9a:24:95:65:6d:3c:fe:58:5d
Serial Number (int): 281988085459074411343929409505057931417693
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 53:b0:bb:20:c7:cb:87:15:8b:62:39:be:93:8b:0e:02:7a:68:59:1d
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): e1:a0:ae:e0:c9:e8:21:51:11:ca:81:88:f1:ac:01:61:b3:c9:56:78
Fingerprint (sha256): bb:b4:12:a5:eb:ff:ec:e0:0b:d7:52:81:c8:b0:f2:65:fd:71:98:a5:ae:e6:2a:87:81:64:8c:0c:b4:fa:1a:67

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 www.ridehugo.com

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for www.ridehugo.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

www.ridehugo.com

Other certificates including the domain name ridehugo.com

(limited to 100 certificates)

Certificate

The complete raw certificate details for www.ridehugo.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 281988085459074411343929409505057931417693
 . . . . . . . . [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 2019-04-23 01:29:27 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-07-22 01:29:27 +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 'www.ridehugo.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 986930368280047198064966953497119263881465586207396832580357510925984976592439349498791479689909056291205046963037848578809918584988835955202833272467989175531651253840064389189056930267336483872311424954139646499472317344241115694148437729002518853336480083259557690165384718492132566657865302787667534980579381095307038393066812764308691232412571521713868610014397646753160442570018058379783829698935413706684198957637849501488141720028078077790479858132223463113402371026663866722816854005739199841972780608336271656800631451466550299216576162930899005251777705880463682866780902782358336792389957130741329825917656553613140431789700874312037951794191058923746459145764400323390647139799498992162591599707995561539268133777889561682026285058604776303367857295313347928907134734850006681217762684066391072281384125697215856975145650390821210050623892663646991207417493781468376123518597347854563142213470109416830016394408242899921054665905690794362581889829743108174009729884391260551853109149425864579961864387376554908744754438469744636222842465106759261430892068395117624308922580800486167958918798998388738261037736179787475181263314404225311077411189919342193075324562163162021119505580663055112594778354686946783252294212281
 . . . . . . . . . . . . . . . . . . . . [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)
							53b0bb20c7cb87158b6239be938b0e027a68591d
 . . . . . . . . . . . . . . . . [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 (20 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.ridehugo.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 (244 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (241 bytes)
							00ef007500e2694bae26e8e94009e8861bb63b83d43ee7fe7488fba48f2893019dddf1dbfe0000016a4806d1e40000040300463044022064278959b11bfa2ef7cff36d5c0ab501402fe4fb1665a978a54923218ffe8aa7022023b9d508bd1cc54f957aa94411e0af8e7e31c3fad3a149099f89d96eed7fc89c007600293c519654c83965baaa50fc5807d4b76fbf587a2972dca4c30cf4e54547f4780000016a4806d452000004030047304502204eb0758b0b91fcd219a08338e65982ac4a135dd2bf36b0fc1c50d297fdab8c9c02210090cb2f3c898edb69cc109c5f3446cf85e1c9cff64d18cc4d3d8f79e54e46dda7
 . . . . [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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