www.falconaraalbanese.com

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:73:87:b8:9f:da:42:5b:76:d6:c4:cd:6f:cd:f1:16:91:12 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.falconaraalbanese.com

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:73:87:b8:9f:da:42:5b:76:d6:c4:cd:6f:cd:f1:16:91:12
Serial Number (int): 300649734395437000282109487959633965781266
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 1f:26:66:05:6b:2c:5f:cb:27:b9:7a:8c:c6:3d:9c:19:ce:11:88:0d
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): d2:95:e3:4d:24:e3:9a:4d:b7:51:26:fd:04:24:96:ad:b0:91:a7:2a
Fingerprint (sha256): 23:49:59:6e:c0:88:c5:90:37:c9:b6:53:c5:e4:44:dd:29:13:3b:e0:3f:f8:3f:8a:23:3f:ce:8d:69:78:d0:aa

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.falconaraalbanese.com

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for www.falconaraalbanese.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.falconaraalbanese.com

Other certificates including the domain name falconaraalbanese.com

(limited to 100 certificates)

Certificate

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

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEAwKFHcq/GbgbvzUvFNbAG
+Yg8lJUG3UjcErzAQEkv7fA1+wulF6ma0Zvrww+meUBtIMGZAzkt+7/Yckdfybdx
yLbcuVfyrTDW6O0abfjHQdyhSFCJPNxIqMqxObAfb7mEgZAGVjmfdrgY9VKQHOMb
6bW7aLqLecsMti5ggjO8BsS5JTO2j/mJoWIna5ebxlHiArP0uYcIkzvfI9My32UY
NpVlkbvhe9r7G/qlOm+az30Jozl465g3TRdc3CCknXlfIRC7TZxKlELtn6z8Ne5+
GcTalm9oEHIDGPDPZcord6El/1GUTQe7679XkHgRX/qCaARCO3XVYpfdO5NbsN28
dCEFfbnkTIAnKEd/c6Jb41oRTM5LB89BMCv5s6Fe1RioKamJj1/SKizDExmmpmez
IBmNZ5C4Dy3K9WOIFAF+55BT5cGqzD6fLKi96DL4XycnYx5F5/dk15v7lqNtMpnE
+zNF3hEeCvqH7vTB3e+xW9eCG0oASxjoupfyKjFzq2jUzYt3827r1U0LNdJgR+E+
GrRoZkQSAEISeV/aGZ8JFoXiCkw2KPvzZNIkPQzurTqiw3FfzpY3bkIbacNFPNB/
s3IVdK4dxtg3xzxZnTIu2RE+7+J9XXFYCb/CZk9TjmwE5fbV5ZbdfpP57sasJf7l
PNWePIIQU9kF0GRkcuE+wy0CAwEAAQ==
-----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 300649734395437000282109487959633965781266
 . . . . . . . . [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 2020-01-29 19:31:25 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-04-28 19:31:25 +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.falconaraalbanese.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 785861822380282505921317561296010229657891417779584504020787790647891536464236512833286181946865758157844123099574791405911329351977821242728415140459176668723265280010364156500670153954849314880396879135641121561179634807771219395469341231000213995807598437586739148612817443857024618464918511170582555654887013859262189636141109371765611019347815117472851305702367137748689302476043399144395881242781268929810600039280851988949941023103966079460542191106770381624800239148240285133067017335218659971993338461643198019142261954540393036253925404741834897477143641543255776655691764606721719652367461257734281434511499122806084546340039942201994167227629677550211761172909729395403654263268885237100544986311326089767220511724275448337208822827066466854226564093966389278568244388894889617754627105190592589843749252304286990438255625427419761174021943726429168920537882730431389158818618665344959441695787213291532906191903441344982409585900545946517720132920689017503628953836760361064970622676478700064701113679074801691762664086629727097093081299800000480550327554374636007783440403538496987391645914431584057066595055585302513488799215346936455258930834444900670016157056662137553187432599224408988122683862875170698767974187821
 . . . . . . . . . . . . . . . . . . . . [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)
							1f2666056b2c5fcb27b97a8cc63d9c19ce11880d
 . . . . . . . . . . . . . . . . [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 (29 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.falconaraalbanese.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 (246 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (243 bytes)
							00f1007700b21e05cc8ba2cd8a204e8766f92bb98a2520676bdafa70e7b249532def8b905e0000016ff3005d830000040300483046022100ed5217302094d15c9daa400fc9076dba6fa6a7c2fdc9ae05153dcd86ddf98fb0022100a596f6ec29412609b21b3842badeb450b4b4bc217b578b2f9bf1428347a4769e0076005ea773f9df56c0e7b536487dd049e0327a919a0c84a1121284187596817145580000016ff3005f8a0000040300473045022100b0ae9b38f506ba76ed431c393eeaaee9d3066ce5a105980414e4cab4df15491d02206dcb115a4411096e5283464902e0e73aac10085c00cd158e4f908976cad82288
 . . . . [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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