www.demetra.com

Issued by R3

About this certificate

This digital certificate with serial number 03:96:44:df:83:a4:bb:2a:24:8c:b6:86:a2:44:71:04:3b:59 was issued on by Let's Encrypt.

With 5 subject alternative names this certificate can be used to secure multiple fqdn's. 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=www.demetra.com

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:96:44:df:83:a4:bb:2a:24:8c:b6:86:a2:44:71:04:3b:59
Serial Number (int): 312470760889381338380326592979654880279385
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: ae:91:94:ab:3e:86:45:41:5a:2e:67:c7:95:3b:49:98:5a:b0:4e:10
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 52:34:7b:30:f3:6b:34:ef:18:5b:43:3c:c8:a0:3f:b6:61:8c:36:03
Fingerprint (sha256): 14:f0:1c:e3:74:55:2a:d9:1f:de:82:3b:7e:b4:51:9a:48:22:88:9d:98:4d:41:6f:5d:d5:ff:47:ab:a7:cd:2a

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

Revocation information

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

Check the revocation status for certificate www.demetra.com

5

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for www.demetra.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

cawi.it
demetra.com
g.demetra.com
www.cawi.it
www.demetra.com

Other certificates including the domain name demetra.com

(limited to 100 certificates)
demetra.com
demetra.com
www.demetra.com
www.demetra.com
mail.demetra.com
mail.demetra.com
mail.demetra.com
mail.demetra.com
www.demetra.com
www.demetra.com
mail.demetra.com
demetra.com
www.demetra.com
www.demetra.com
www.demetra.com
demetra.com
www.demetra.com
mail.demetra.com
demetra.com
demetra.com
demetra.com
mail.demetra.com
mail.demetra.com
demetra.com
demetra.com
mail.demetra.com
www.demetra.com
demetra.com
mail.demetra.com
www.demetra.com
demetra.com
mail.demetra.com
www.demetra.com

Certificate

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

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAuu3fQm+hwZWpVm9bqgCQ
i6k66L418pFZ2MJ0cXyAh9lRsIK1bJHCLQbfVzYinaCd6sc13YIN6mqKvretveix
bx00QCeq35u4GHBFK/6QY51FiLtsvJhK9RXvz6J9kc/0TX0a2XTUi+eEh586vVkV
if/ZR4WZdyrrEKWV2ZYGcWjVvtKdFsvEoFOdBRlvmkVVqNxG/vopFllNn4vDMOum
/4oOtor7sVD0JaMpQLEkuavJc2hjXdycq+vee69DoiE6zTiMCEa4ySOQGWZiSRDE
whuXKTWrAxly0LKIp2LqCtaoFqchRm3l76BeE2U5s2Q4gojVqqUgr4Xf1lZ57qdD
AwIDAQAB
-----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 312470760889381338380326592979654880279385
 . . . . . . . . [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 2024-01-13 16:33:30 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-04-12 16:33:29 +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.demetra.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 23597623831684817902995954425360181573195039719304411317456905049265296944054404151014285301941092378500485954945311402772834655056925310281041311024510902328042145199371604726045771436304010539967257830030248673470657519304322879081349286171309533329538338121347025899097960501032128699617310946223984760135661826885827742856460958445490747130630340233091502549671674091994282653823262526150291593548372573387349087403777115972323779626730222271776636440873916638431763587080320524751872810701266217975228615364821962037471959873700475799104485651491446994873693627772531576317105070979074508660417872865924464722691
 . . . . . . . . . . . . . . . . . . . . [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)
							ae9194ab3e8645415a2e67c7953b49985ab04e10
 . . . . . . . . . . . . . . . . [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 (69 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'cawi.it'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'demetra.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'g.demetra.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.cawi.it'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.demetra.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 (244 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (241 bytes)
							00ef00750048b0e36bdaa647340fe56a02fa9d30eb1c5201cb56dd2c81d9bbbfab39d884730000018d03e2c76e00000403004630440220776a3764875b6ff594f04c47059a29dedeb04539f4b9b1a26e7339d5cc125d59022023fe8f6ee19710bfac2069af60485c0e71ca120ae1f14b117e60a6eecaa4e26700760076ff883f0ab6fb9551c261ccf587ba34b4a4cdbb29dc68420a9fe6674c5a3a740000018d03e2c9a60000040300473045022100e8b8070457554efff27f8f217949f7095ce66bb8b1fb66c54822d8e4c5b1ff900220585401bf3f8b47eb33447bee147318d56ac2811f7deb551e6971078eee67c26e
 . . . . [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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