comat.com

Issued by R3

About this certificate

This digital certificate with serial number 03:56:6e:e9:55:a4:d8:88:07:1a:09:8d:10:31:95:d3:e0:14 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=comat.com

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:56:6e:e9:55:a4:d8:88:07:1a:09:8d:10:31:95:d3:e0:14
Serial Number (int): 290748567972251075330879865604402654208020
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: d6:3e:c5:3e:f6:47:98:44:90:1f:dd:a1:e1:7f:f1:ae:27:91:f4:81
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): fe:58:ee:80:19:a0:cf:a6:be:f1:c9:8a:bb:61:ce:f7:4b:a3:ed:00
Fingerprint (sha256): 46:10:78:b6:7c:1e:23:da:b5:37:a4:77:5e:5f:79:b9:92:8a:d3:c7:0a:70:1f:f5:f3:a7:88:cc:a2:4c:84:96

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

Revocation information

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

Check the revocation status for certificate comat.com

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for comat.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

comat.com

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comat.com
comat.com

Certificate

The complete raw certificate details for comat.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 290748567972251075330879865604402654208020
 . . . . . . . . [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 2023-07-21 20:02:48 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2023-10-19 20:02:47 +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 'comat.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 738252512900641764288950879294813588633334023021037825883034928800809086617914364749702779214798147687203723258058778478863182526528185757421268733934216154347453908904804191468427936656356021476478175743229223377175738276174232255938389909302318467020928568708402090411217027419932125741979177861054565936160819387427458971048098205525506874344822069512129594310934893492615810721920348015898772987192407493565055176079607119583755846512599847351358006844879092720190507971742752347197397097613777512548767930801074344088533064181809205824317648679801346382276268505263829025083431521327449218904184612425457282891993860706216877921480912321174576758188946455231828909269627937016565772468061666115233608793722569543353649429544857976986773790859352599884587545581156988296365891643115156309113920134316028312698251375230720329180037321612549199976484920619620621958824576511676547882713699600505906965034750164103635946970380098981480727956802510792007099322285626101006873840886650813448892327833719349730211749859484048499500703294160359577947083422764507738107941377842629335262869180087830671408389214425064293135641045798581943390214599689792469732747781323537132929034376808119879667283708467769749387317631898223829174413827
 . . . . . . . . . . . . . . . . . . . . [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)
							d63ec53ef6479844901fdda1e17ff1ae2791f481
 . . . . . . . . . . . . . . . . [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 (13 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'comat.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)
							00f00076007a328c54d8b72db620ea38e0521ee98416703213854d3bd22bc13a57a352eb52000001897a4327680000040300473045022070dbd3a1ba0a13e2f3ce3ff53c2971c80f1f16abc0ca1eda19298ced1f5559d2022100923ed5d43b425fac575b10d1cc4c699ac0cd900e141a5795da73e73d058cb27c007600adf7befa7cff10c88b9d3d9c1e3e186ab467295dcfb10c24ca858634ebdc828a000001897a4327670000040300473045022100c07eaad06db4655f24e4eda2f5ab2e826ea5ec4bddec1767dc16877628608c2602206f9c310974eba4e603c80e2cbb02c85ef801951b521c86263e74698cf179b6e0
 . . . . [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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