www.firejimjeffries.com

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:e7:9e:bc:57:91:2a:4d:57:ab:13:88:19:38:4e:8d:72:4d 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.firejimjeffries.com

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:e7:9e:bc:57:91:2a:4d:57:ab:13:88:19:38:4e:8d:72:4d
Serial Number (int): 340153080505231757209390145375854905881165
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 06:97:a8:8b:db:a1:55:f7:6e:42:d5:49:ac:35:7d:e5:e3:df:d7:85
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 92:c6:b1:ea:90:29:a9:29:c2:2d:eb:e7:21:ca:7d:9c:26:f1:80:b8
Fingerprint (sha256): ce:b9:af:f9:91:e9:ac:52:a3:5b:94:68:21:b2:3f:f1:29:18:49:d9:21:86:8b:ee:0f:6d:2b:6f:b7:8d:1c:fc

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.firejimjeffries.com

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for www.firejimjeffries.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.firejimjeffries.com

Other certificates including the domain name firejimjeffries.com

(limited to 100 certificates)

Certificate

The complete raw certificate details for www.firejimjeffries.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 340153080505231757209390145375854905881165
 . . . . . . . . [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 2020-04-07 08:31:35 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-07-06 08:31:35 +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.firejimjeffries.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 642972058643901242938543392217101664544054411869056260152877673935611781004987310871910782985722733759437802580918605520050847690888632600239158270308331997355251152411219094986809258654734082683434214318292355116476715512787471171349254051992176316967043369820146640436342588729988107061201889116250873606542651172202917410997920474519943445354472914662161597669793345344856852727602686240110306566471652037046944645273185459287871082860270643655213718124352030194680480141749779961167394704879484814346214807225093602810686777548163646031764613232016013029242797734856219931226159468324016409804644860782521194551769014678556137890146760459168344343149721204624866950642170913343154011035943194250970951033414085400271693322864570730533142103519775064437754835344285133119733506346286479968740527571982408001695971012354463702726711092406252223358433558460208059036633109535245227408854134971019080435972521159553620284519781116057845230002237987151896224598509286994781410669514358547040876727749349604093338780653461063538775227369537857508659296931203200507869292826227323316408069809430470613906034899569703527956576182358766824006087604805135594349373922603685319501177188009221457529104882375104185545742443830564485989209293
 . . . . . . . . . . . . . . . . . . . . [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)
							0697a88bdba155f76e42d549ac357de5e3dfd785
 . . . . . . . . . . . . . . . . [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 (27 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.firejimjeffries.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)
							00ef0075006f5376ac31f03119d89900a45115ff77151c11d902c10029068db2089a37d9130000017153fb127c00000403004630440220380810e9f117f273c8e89eb4b48a1545fcded00ad06c6ac029ce753d422a30c5022009a4271dcdb917e0a107e4c10b50b6aa00c34847dbe136bb873c520ac123a6eb00760007b75c1be57d68fff1b0c61d2315c7bae6577c5794b76aeebc613a1a69d3a21c0000017153fb1283000004030047304502200dc801d4dacad5035fec7025bbd49207fece7bd5b1cf63916c41047b88991886022100e9cfbd2570c4fae94bd488f97d9b1fcb8d086d49ef56bafd70fbe6706edd21d3
 . . . . [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)
		0089cec6c6c2aee849a2ae522bd0f3323992c108a6e93b2fe10c5c0be3d48463016d6e7c60d38eeb93bc485ad934b216e54c2f749eba0d831078b8d1e44fbb8a9ad38c3d62eae8e34dea8686720d531543876b64e7f4c3f16ac1f08a84f690b6ba9be30ed55c002624a44de04a9189291507a1a0de6e38423aabdec655ee06fc132a45b1b488eed6cd73f07382a2b2a2321afe9b441accd99e5c66d4320af4b9fe45d601d25994d910a8309837bbbc73e95070022115cc9352496813d1846bdb02b9d6a75825fdcf88ec6c3cb68b2a8317a0fb94b25236d2a95d676fa4aa7f5913fc1c05b6cb8a659dce8feb8b7ac0f51328fb98500a7a7fa220c7679ca9302d0c