alexthedeveloper.com

Issued by R3

About this certificate

This digital certificate with serial number 04:63:0c:d2:d5:55:f9:63:01:2c:d0:39:e9:48:bf:d6:2a:27 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:
  • DV certificate contains a subject common name, this is not recommended. If certificate policy 2.23.140.1.2.1 (CA/B BR domain validated) is included, only country and/or common name is allowed in SubjectDN. (BRs: 7.1.2.7.2)
  • Subscriber certificates use of Subject Key Identifier is NOT RECOMMENDED (BRs v2: 7.1.2.7.6)
  • Subscriber Certificate: commonName is NOT RECOMMENDED. (BRs: 7.1.2.7.1)

Certificate Subject

CN=alexthedeveloper.com

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 04:63:0c:d2:d5:55:f9:63:01:2c:d0:39:e9:48:bf:d6:2a:27
Serial Number (int): 382154143497468426621815474503689820318247
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: b1:c8:85:27:de:e0:d4:90:6d:f0:13:f0:87:8b:02:73:e5:d5:e0:b7
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): f9:a7:55:9d:eb:eb:38:22:2f:08:d9:f5:69:31:eb:ba:12:5b:ec:44
Fingerprint (sha256): 22:87:ea:94:8f:48:c4:fc:07:b1:80:e6:b0:be:34:06:9b:e5:75:f4:aa:cb:3a:cc:ec:fb:ad:91:74:7e:e0:53

Issuing Certificate URL: http://r3.i.lencr.org/

Revocation information

OCSP Server: http://r3.o.lencr.org

Check the revocation status for certificate alexthedeveloper.com

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for alexthedeveloper.com

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

alexthedeveloper.com

Other certificates including the domain name alexthedeveloper.com

(limited to 100 certificates)
www.alextomkins.ca
alexthedeveloper.com
alexthedeveloper.com
git-hook.randomforest.ee
alexthedeveloper.com
eliteprogrammers.ca
alexthedeveloper.com
www.alexthedeveloper.com
alanmortoni.com
www.esightcompany.com

Certificate

The complete raw certificate details for alexthedeveloper.com in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAuq7AA85b3AUvN5G1HUYW
wfSnzLipri85j1Ld0rJioJzaucYbM+iwQKlpl87/OXxe6WrPG3+7HOEAl2RqSS4G
c4r4Hi6dfKU5lx4Q8S/6NDCxQiVvm86XgOpL09hiM1uetTrFiCV+xRilWBEVAV+U
bATePomeG1f8x1/tTEGzbPMDZduCNRlBjvP405QwLz0aF2NKnePM+fRGuMc3f0ga
R/cCCOL3Yosi6UNlszX8o20XFU53Qc4X7TZEamc7gJ+LCk8qpRvSouu+3N4gLEXA
NzQb8QdzZYAantQA6ljHp0xMfTHlX6z7qQU89H81HPddTAmtpb2jvkhUhKlCUlhB
twIDAQAB
-----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 382154143497468426621815474503689820318247
 . . . . . . . . [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 'R3'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2023-11-20 00:02:08 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-02-18 00:02:07 +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 'alexthedeveloper.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 (2160 bits)
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 23566497189016098635756304423003770425820493580241826911742229604440625663670032538428383828045496015561181692702558800486028453599390024588503784637193208011499616453205088023758933719436394643088318934887380652476620453367861746000927195724316715721354095089307619155326834077624282459246366690311678180723635127314322732614493872081601225410338333991793943730921373315990541078237099161299157981916305898996627892313163696327540129743591894307501743448592537384773737577542399484311184344190474901370922603951107082158073570953622837804164427460938143918729402679709366834644823810019154418547796004028335550644663
 . . . . . . . . . . . . . . . . . . . . [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)
							b1c88527dee0d4906df013f0878b0273e5d5e0b7
 . . . . . . . . . . . . . . . . [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 142eb317b75856cbae500940e61faf9d8b14c2c6
 . . . . . . . . . . . . . . . . [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 (73 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://r3.o.lencr.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://r3.i.lencr.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 (24 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'alexthedeveloper.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 (12 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 1.3.6.1.4.1.11129.2.4.2
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (245 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (242 bytes)
							00f00076003b5377753e2db9804e8b305b06fe403b67d84fc3f4c7bd000d2d726fe1fad4170000018bea3fbff40000040300473045022100d9a9a9d44cb51db95ed53fbd65a5d8051a77dacc17237097ae6d51fa6c6c9d6b02204a25236296db87d530ebe19c13c7e677d1b27def4420ae2ee29d3009527120db00760048b0e36bdaa647340fe56a02fa9d30eb1c5201cb56dd2c81d9bbbfab39d884730000018bea3fbff700000403004730450221009138b68e93872c2292e3a2a78d5b473b4d5989a2c7755684cf266c678451326a022058e00eea9dc0cab5a2315cc4e6ceb5754e0e0d1a980b4cca9d8c0bb093537135
 . . . . [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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