shop.comma.ai

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:b8:73:fb:e9:70:61:71:d8:e4:83:3e:40:8b:de:96:29:11 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=shop.comma.ai

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:b8:73:fb:e9:70:61:71:d8:e4:83:3e:40:8b:de:96:29:11
Serial Number (int): 324102982529465324315504901772389876377873
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 48:fe:8f:de:2f:0b:7b:44:80:71:af:41:3c:6e:18:d0:1f:54:76:2d
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 1c:82:00:ab:2b:07:52:a7:92:16:8f:05:db:9b:03:25:49:6b:4d:1b
Fingerprint (sha256): a8:ec:8c:f9:e2:e5:af:c9:ec:aa:c9:64:47:de:a5:b3:cc:15:60:4b:cb:a3:8f:5c:d9:83:75:5d:e9:25:fb:80

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 shop.comma.ai

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for shop.comma.ai

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

shop.comma.ai

Other certificates including the domain name comma.ai

(limited to 100 certificates)
www.coreputters.com
shop.comma.ai
xiancuisinechicago.com
blate.app
shop.comma.ai
redirect.invites365.com
shop.comma.ai
auth.talin.ai
www.comma.ai
bikekarotte.niedermayr.tech
*.comma.ai
southamerica.ihhsfair.com
ssfl.medeintegra.app
www.seohafair.co.kr
chffr.comma.ai
preview.comma.ai
chffr.comma.ai
research.comma.ai
chffr.comma.ai
salaoestrela.centresolucoes.com.br
preview.comma.ai
preview.comma.ai
www.linkyro.com
admin.ago-capital.com
shop.comma.ai
chffr.comma.ai
hiresco.biz
comma.ai
firebase.insvilablareix.net
www.claybyte.com
*.comma.ai
wylynko.com
shop.comma.ai
shop.comma.ai
chffr.comma.ai
doblebueno.com
mc.construkt.org
www.comma.ai
*.comma.ai
yesican-us.kenartmedia.com
research.comma.ai
*.comma.ai
shop.comma.ai
www.devicapluess.ch
stockaki.com
chffr.comma.ai
www.comma.ai
www.snaponap.com
truckaround.app
stephloughman.com
research.comma.ai
www.1622.com.au
research.comma.ai
blog.comma.ai
preview.comma.ai
wylynko.com
pier.love
chffr.comma.ai
www.noetic.app
shop.comma.ai
preview.comma.ai
my.comma.ai
www.therealresq.com
preview.comma.ai
www.carechampapp.com
marttinen.ca
ssh.comma.ai
shop.comma.ai
preview.comma.ai
www.monetsbierli.ch
www.q9y.ru
sigmaproit.com
preview.comma.ai
ssh.comma.ai
shop.comma.ai
research.comma.ai
preview.comma.ai
preview.comma.ai
auth.redskymarkets.com
www.switch-psychologie.com
duckstack.com
*.comma.ai
games-admin.sqwadapp.co
www.comma.ai
shop.comma.ai
my.comma.ai
preview.comma.ai
research.comma.ai
admin.pck-food.com
nakytec.com
makasmushrooms.co.zw
auth.orbix360.com
shop.comma.ai
shop.comma.ai
www.aide-international.org
shop.comma.ai
research.comma.ai
www.dbyagmich.com.au
bearyadventure.com
chengalpattu.tamilnaduonewaytaxi.in

Certificate

The complete raw certificate details for shop.comma.ai in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAxA21e3v81gorFYKG5q9r
xIS+raVtOKdRV20r4YarZjtWEuIA/gMTajefFV85Cfzp3U3kYepkXz/F6UUCVA0x
/NuXM5fQBoT5tZZmihf5BjbVKS5uFheJbJGIUECUScUYQ0dz88sg9WyHHMshN5B+
xl3P/afMnhbr3420R5/+iGyxZgjmGo5CUU70s102uquVhhkTh9Mblf37mu7q3Tix
oAqvVq/nTdUB9TMq9kM4xY0p7VMDJqu5mwxpk3kt1UdoZkGWw/ndBKVF62Pk689n
HLkk/QbmfKOTMHUorXhPUhlkwAsmfqZE8FBlup8JBXsNtKYt9o1v9ZHB0BCjc8HT
iwIDAQAB
-----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 324102982529465324315504901772389876377873
 . . . . . . . . [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 2019-04-11 04:38:22 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-07-10 04:38:22 +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 'shop.comma.ai'
 . . . . . . . . [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 24749467891519439688645005566575787119132923953792159323542960725311784995037823682033086210695812058515788665073372683955877871235446118518423490014444295324050470278215245755483208863067386612186311313097829312331814772818612394294160342446528590703402997976794930507642699015047022856885706665266337442982279741041653529293634829565872914446451791671412469237586671579958745162991324255142367324688816362275351842876338557118119001171929778926170159857875035411786573685549007621617289804033276045296694187540719278471044566919291583398233608408571230629583318769536686186201875458478616113811480986249867739386763
 . . . . . . . . . . . . . . . . . . . . [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)
							48fe8fde2f0b7b448071af413c6e18d01f54762d
 . . . . . . . . . . . . . . . . [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 (17 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'shop.comma.ai'
 . . . . . . . . . . . . . . . . [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)
							00ef007600747eda8331ad331091219cce254f4270c2bffd5e422008c6373579e6107bcc560000016a0ae77766000004030047304502200a11d3083abc821d917c1c612ad94b69b3c27b26ef6bbd3d4860451f2f8f0f7c022100810563ec64a83a2b8c8770c5160e8c47e2012345eb5dfdd67928101318a4556100750063f2dbcde83bcc2ccf0b728427576b33a48d61778fbd75a638b1c768544bd88d0000016a0ae779640000040300463044022011b8737af059c6cf9a73c7fb51882fe6aa0e94968ee08d6d31be506bab7b8b6902207949f5e7f4f32bc826b657020944170c64146ac8183b942adddd1e4c4570dafc
 . . . . [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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