34060.com

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:9e:e7:93:c5:50:e3:7c:5b:92:61:80:37:49:ac:67:26:b9 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=34060.com

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:9e:e7:93:c5:50:e3:7c:5b:92:61:80:37:49:ac:67:26:b9
Serial Number (int): 315409290705496885710373958217520298534585
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: c9:57:41:a1:9b:b0:2c:85:8f:b8:3d:d1:e9:e5:7c:88:1c:0d:bb:e9
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): fd:1b:d6:8c:0a:10:25:c6:17:95:b9:2c:ba:8b:34:3b:e0:1b:b3:33
Fingerprint (sha256): ea:24:54:36:db:61:86:b8:75:69:21:04:af:6e:e4:d7:a1:b0:6d:8f:14:7e:80:00:69:38:7d:fe:fe:b1:0a:83

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 34060.com

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for 34060.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

34060.com

Other certificates including the domain name 34060.com

(limited to 100 certificates)
34060.com
www.34060.com
www.34060.com
34060.com
34060.com
www.indiedj.com
www.34060.com
www.34631.com
33941.com
www.34060.com
34060.com
45842.com
www.34060.com
34060.com
34060.com

Certificate

The complete raw certificate details for 34060.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 315409290705496885710373958217520298534585
 . . . . . . . . [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 2019-09-01 12:12:23 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-11-30 12:12:23 +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 '34060.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 685858512778729024124392408799480941748757470712998671787377907137070167337671734777068002078222927699552109575262799364549731392326643581687911688535572310048975978549924672291683023227558911413779152068000913232133350042538083133961965742343611871804419385537066788512706120581728970004354609589115054785828958505991445065279750067969036341979575544387709139233556699757102829487215182097124097590923259089912758704086465591132467214412687853703339380018989243292659598202046683602551083718582016047566153370118285909889005869378805581425001408542887063685267497628883294815326954269688070272831825252345585241008239685308555517088032866314393333973063295196156778610735211467893154380840826360209608394981333026425982484298130301210067916855855893873398080845365829015107149761196559994573472981894747379564375814587334823891565157175136080214629202607560592651138090270562664975388998220453609559716058253948125869444333657148716104341605111224034815858525836160711833308270959396108712356508462224656897117934638132427625975093848430377567642519388033009548237171813737853051403156204367329425440053633147838271291113801373478448707133377746600924052744953631581095849712067964795896354222935269345577888327734375535294485436017
 . . . . . . . . . . . . . . . . . . . . [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)
							c95741a19bb02c858fb83dd1e9e57c881c0dbbe9
 . . . . . . . . . . . . . . . . [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 (13 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String '34060.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 (245 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (242 bytes)
							00f0007500e2694bae26e8e94009e8861bb63b83d43ee7fe7488fba48f2893019dddf1dbfe0000016cecf4854a000004030046304402206ad4c688d457a2dc5b1beee5c39e1431d7139237d82889b8a275cf692f5315bd02205a93cdcf447e42b71d3d1172951cfcd1fc65f127ffa6e977472496c6506e807c00770063f2dbcde83bcc2ccf0b728427576b33a48d61778fbd75a638b1c768544bd88d0000016cecf48558000004030048304602210089735569b457811d122d7af1addb7e6a1d69a7e764b7321fdf5dde49ae535548022100d677b2b91f6dcbb61ded5c327e7f9485eb3a388d9fb9323fb326ad6f3f05362f
 . . . . [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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