www.thecheesemakers.com

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:51:38:e5:c8:6c:9c:eb:ff:66:7a:e3:d6:2c:e6:e3:bb:d5 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.thecheesemakers.com

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:51:38:e5:c8:6c:9c:eb:ff:66:7a:e3:d6:2c:e6:e3:bb:d5
Serial Number (int): 288975359384708442491882837090795012733909
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 0f:e1:f9:ac:0e:2b:a3:6b:5b:e6:30:6a:e0:b1:4f:88:23:a8:91:17
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 74:bb:e7:36:78:3a:7a:9f:e4:3c:cd:da:f2:e2:df:1e:f4:7e:f8:8a
Fingerprint (sha256): 5d:05:a1:e0:30:c5:4b:fa:69:b1:e9:64:59:a8:ba:0f:f0:c4:48:5d:35:b2:2f:fe:f4:9a:fc:d2:f9:a4:f9:5e

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.thecheesemakers.com

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for www.thecheesemakers.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.thecheesemakers.com

Other certificates including the domain name thecheesemakers.com

(limited to 100 certificates)

Certificate

The complete raw certificate details for www.thecheesemakers.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 288975359384708442491882837090795012733909
 . . . . . . . . [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 2020-02-04 15:52:40 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-05-04 15:52:40 +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.thecheesemakers.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 1001485631302369051483741964961895760349864573940723879818721836529914911699632765649650969117388897112935211708184873637454610004963243501297081090762425376783792041994498333716309786215947487509426732632414094578316798917519701313198385708417285185404959025688861785495691415009356365353400619028404341710966843013739511719921277347947913862689748354990846164159868792612361836706089011684489920330805841259643330079576792637904784833235017893640051970030463784255445468770409289318795621663119990806264807198092810952379102832371419936628969196848088558323399577871830293378288467152584729785285543272273272647663813537664939643246678965909061604854348098867809898610422063918658498291608962762928612484017694380949313051924964302416071111658084412948723056384607549294448763377052565675949577194166552143517987081537000244526374503279849518990813194049764093478835619244615884639823468611805447164575911290119424241448453678710841250051818995399422398515041372981172817283202260804102063274547741674988277694765226231453715522244991673376673336407248704727049941702678298532430313803746397866210238434937179595853198177820583749531252753130047112623973399397151667700284203285378682610789573020760703321600987149181798700051773667
 . . . . . . . . . . . . . . . . . . . . [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)
							0fe1f9ac0e2ba36b5be6306ae0b14f8823a89117
 . . . . . . . . . . . . . . . . [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.thecheesemakers.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)
							00f00076006f5376ac31f03119d89900a45115ff77151c11d902c10029068db2089a37d91300000170111e41b80000040300473045022100a06fd045814eed66ed3209b9e86b3e5bf79a08a896aab92bacd27037715426ab02206a75cd58ece32ad9ba93b39fe25fbab55db497193b458fc45e388a34e7e633e0007600b21e05cc8ba2cd8a204e8766f92bb98a2520676bdafa70e7b249532def8b905e00000170111e41ec000004030047304502204e2bf97cddce75abb0014790ade073782d40242b71040908ea72c137305ad463022100ea91af8ad23035fbb72398d7f1ff5f8d88e0fae55fb70901792b18afab7b52f0
 . . . . [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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