www.paytaxi.co

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:32:a6:70:14:3a:55:c4:c3:a0:14:6a:65:c2:90:aa:44:b4 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.paytaxi.co

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:32:a6:70:14:3a:55:c4:c3:a0:14:6a:65:c2:90:aa:44:b4
Serial Number (int): 278572209936146084646607469435801190417588
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: e7:0a:14:4f:ec:c7:cf:d0:90:5a:16:34:86:b1:0d:9e:87:88:02:d4
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): db:75:aa:ac:53:12:28:14:a1:92:f6:7b:07:7e:77:20:24:05:8d:6e
Fingerprint (sha256): b1:ec:d0:7c:4a:5e:5a:da:27:b0:a7:bd:89:c4:9c:20:f3:47:62:f5:09:4b:a4:90:38:cf:96:aa:0a:59:cb:ab

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.paytaxi.co

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for www.paytaxi.co

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.paytaxi.co

Other certificates including the domain name paytaxi.co

(limited to 100 certificates)
www.paytaxi.co
www.paytaxi.co
paytaxi.co
paytaxi.co
www.paytaxi.co
paytaxi.co
paytaxi.co
paytaxi.co

Certificate

The complete raw certificate details for www.paytaxi.co 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 278572209936146084646607469435801190417588
 . . . . . . . . [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 2020-01-30 13:32:24 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-04-29 13:32:24 +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.paytaxi.co'
 . . . . . . . . [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 910611207266533751326301315893391767065584768780946060326393054076213740771863441522230718689594560161512566182609461810151530687785103308355232632072339789883006484715531219568762086644466807777844333002027195520492099140855696822512887905683549706097647534405544982364348376873227567333063169808975932422086422752237128164914545979053444765198325975793492627028449912958214914583506023238314909125764796153663899516356691125954409766619007227974781558112422051730622865947390538326534744071756406141707745013919320565062722658648232311428214003350281643377698351827556396643548914272379586101813882581193439733500986033476574619414984722368961201315592786594103070741240444967609178603185033278118770860862739434685083484551001654626164477521630629065615939147210372554910507544622038121932693881328923929341590298471119806558676614127564794889064564305980683049549200945992651736376157814297033479361844929783604277848129014139219951682018489203102313410642380920910079805597417593590265222209075311271237983306865512254675478989303796642403499924065559518595287659490887290137393609274962723411000901862426167678889557133444814699584572652716276402396865612821427740529201904355349173400278360226298362664075207095180029884341851
 . . . . . . . . . . . . . . . . . . . . [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)
							e70a144fecc7cfd0905a163486b10d9e878802d4
 . . . . . . . . . . . . . . . . [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 (18 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.paytaxi.co'
 . . . . . . . . . . . . . . . . [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 (247 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (244 bytes)
							00f20077006f5376ac31f03119d89900a45115ff77151c11d902c10029068db2089a37d9130000016ff6de0d2a0000040300483046022100c5b0aaa34b255ecf2d65125ffbb0df8e913d4f00168585367b03bae2b09d509b022100ac69871feec2094cab81309706b752ff04a62ab4188cb538fee4568c9b64297c00770007b75c1be57d68fff1b0c61d2315c7bae6577c5794b76aeebc613a1a69d3a21c0000016ff6de0d220000040300483046022100e9681f187d47e1a33f6c99da34d6fb8584c2aaa84260dddde63412321dd451430221008ef70fc6f6aff52efec6a0c46ee6786805bf9bacc08a1271a770131b89ee82c9
 . . . . [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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