pigiamadonna.com

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:03:e8:31:5f:5a:d1:c0:ee:4e:33:98:e3:18:cf:d8:b6:3b 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=pigiamadonna.com

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:03:e8:31:5f:5a:d1:c0:ee:4e:33:98:e3:18:cf:d8:b6:3b
Serial Number (int): 262666342147636086598697598280684319323707
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: c6:bc:23:32:18:65:43:da:56:b9:ca:ea:a8:3f:06:3d:8f:79:9b:1d
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 54:33:fe:9a:55:d7:94:eb:04:1b:57:18:89:9b:27:fb:94:00:ea:fc
Fingerprint (sha256): 71:67:18:9d:f0:c0:9d:40:d9:44:ae:8f:8c:d8:81:dd:3f:00:eb:e7:15:68:66:94:d6:37:12:d8:e9:b4:cd:89

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 pigiamadonna.com

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for pigiamadonna.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

pigiamadonna.com

Other certificates including the domain name pigiamadonna.com

(limited to 100 certificates)
pigiamadonna.com
pigiamadonna.com
pigiamadonna.com
pigiamadonna.com
pigiamadonna.com
www.smartnameservice.com
www.pigiamadonna.com
pigiamadonna.com

Certificate

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

Certificate (PEM)

-----BEGIN CERTIFICATE-----
MIIGWDCCBUCgAwIBAgISAwPoMV9a0cDuTjOY4xjP2LY7MA0GCSqGSIb3DQEBCwUA
MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD
ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0yMDAxMTcxODE2MTJaFw0y
MDA0MTYxODE2MTJaMBsxGTAXBgNVBAMTEHBpZ2lhbWFkb25uYS5jb20wggIiMA0G
CSqGSIb3DQEBAQUAA4ICDwAwggIKAoICAQC+owJuMCo7/yNTAJTCzj/EdKtBUZNL
gI+eaECXqDTkarQTxfwWNvboN81KPo07KRVB8FHRgvNm8NcdzcptqgkRH746TiZ4
ViVwyzpdTyiv5Cvja7XLXuWTpKH8+FX10hxNxjraifL4izCaeVWeqeytYaog53Xg
VwLwpuGb742y234PA7ku63uJHAZMdvvGGiJ2bdTEIyW2GEysJB4P8EZ/KdJ5us0r
OVVAhCpm6q7I8M8NENH0iX/epIVrc+Oh2B8qI8bM3R3n6WKXzfX07Ee2ORLgvcZ6
CNreFYVrcRS5cHwJcCyAGqHeTULq3FRpUk/INO3vdItcSvO82Qc/hPyiSwz/nv+P
B/20/3zsJ6+hDHerf1ifjs8/CJfvrv2bctNj3YlIk0ZAixElrbLB6ErDW7REku1l
DvDg71GoTwDKWQiVlWTOJxYzMpEYfRDuvicx+9td3bozXiHuqItALxKhk86Iz3Fl
6C3pMlBP/NeSXs1evlKVzUcfjDUuSFWjGS26+GE8STgpmfMwIHE12eIn7c8uY0UZ
KXc0onURchwtg0EJ7R55SirDFhQChZKgab3KnCb8nvUcjgf3vpvH/HBO0z+LqpkX
y3hIZM+QuWjdIKYTbmEXsJ3/bs//DbwUtIE+fmkMNOP3ibLUxQMK0r/McN+KpyJH
TVqC6156SLy9WwIDAQABo4ICZTCCAmEwDgYDVR0PAQH/BAQDAgWgMB0GA1UdJQQW
MBQGCCsGAQUFBwMBBggrBgEFBQcDAjAMBgNVHRMBAf8EAjAAMB0GA1UdDgQWBBTG
vCMyGGVD2la5yuqoPwY9j3mbHTAfBgNVHSMEGDAWgBSoSmpjBH3duubRObemRWXv
86jsoTBvBggrBgEFBQcBAQRjMGEwLgYIKwYBBQUHMAGGImh0dHA6Ly9vY3NwLmlu
dC14My5sZXRzZW5jcnlwdC5vcmcwLwYIKwYBBQUHMAKGI2h0dHA6Ly9jZXJ0Lmlu
dC14My5sZXRzZW5jcnlwdC5vcmcvMBsGA1UdEQQUMBKCEHBpZ2lhbWFkb25uYS5j
b20wTAYDVR0gBEUwQzAIBgZngQwBAgEwNwYLKwYBBAGC3xMBAQEwKDAmBggrBgEF
BQcCARYaaHR0cDovL2Nwcy5sZXRzZW5jcnlwdC5vcmcwggEEBgorBgEEAdZ5AgQC
BIH1BIHyAPAAdgBep3P531bA57U2SH3QSeAyepGaDIShEhKEGHWWgXFFWAAAAW+0
7zN4AAAEAwBHMEUCICQ4DE2smty6ay5zEt5N21xdFeJb0/eTL+fMUncZGBcGAiEA
0Q3W3Gh7f8tgOwNNnKfgbJWFpv6O54wxuhfD9Gp0LdAAdgCyHgXMi6LNiiBOh2b5
K7mKJSBna9r6cOeySVMt74uQXgAAAW+07zNjAAAEAwBHMEUCIQDHI3XFgYic74r6
xyD5n83iKSH0WVYH/VRdI2vMn/FS5QIgPsiWxt2M1J2DqS4qyVhBDDX00BL5l8ds
+h89KTCFwjUwDQYJKoZIhvcNAQELBQADggEBABF/b5q2Vdd/thVYXQ6Br38Z0LE3
ZtyBy2/V51P6ZH8lZ/qPC7+VZBRlVjccick9lixvR1sMERYoW0tfbR/4uWYqWBEa
qV35nImnN32owBALacj0StTVCmWw9jI4BrE4Ml2CUB6GRsEa2+aWIt8FfSNJY5FH
IXWSBGV0exzfFZm4pXgTO91UMFdGkYLD+9AmrJCbrOhvTCG4Vdqp4IA125FUshcq
iEjmqThSZosBHBznLvcKsKf2IeqJrcZnncSl5YVJaA9j8b7KDGGqpl8gtaFtMwe8
go4yR1Rd8FqEy0aDKCZ7Ltnr6sA0FscQwW/7NaPW+NF9UT9ghRqZmP9a5bw=
-----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 262666342147636086598697598280684319323707
 . . . . . . . . [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 2020-01-17 18:16:12 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-04-16 18:16:12 +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 'pigiamadonna.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 777730110090096569961898375729971349890631921889164252983061284627717706114598214302406789234183246509203865628015456980771737303362762167151534360806093850233347990587210172260677790246256119683733752893797430786053595416109544233092930263177360009255847480764352604000568056655998573383916005593663339507584900227745927610369767263174096052763019306560534909301347461947313827596037318349149408821226926538642017627900737746773599077791759504252229494781888724695249787036439848451021228542474606327910063211064001220962713803539202594978038152491335963974361066352765800703197821772802247391116109110676570772837656307825844096902372594199650328551257298781495220737985218453180563449780944360611247827585055776990118391807379524657508011833978862700456136046885419360564601223789916061932747594587759291009834065096658614838198071519202337534283696917485693984509865160435476705286472298425358959800946325443386825095029137662752823324670650296045375954159460400031007043009325856391613143408962826483211608713975023749664145984051498792733799137664648468589861938823221553926884726247989051238369973009476979097430697625620572686387776716264678672679736169929198863268662866539715574318477804593690227112132097666345958490553691
 . . . . . . . . . . . . . . . . . . . . [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)
							c6bc2332186543da56b9caeaa83f063d8f799b1d
 . . . . . . . . . . . . . . . . [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 (20 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'pigiamadonna.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)
							00f00076005ea773f9df56c0e7b536487dd049e0327a919a0c84a1121284187596817145580000016fb4ef33780000040300473045022024380c4dac9adcba6b2e7312de4ddb5c5d15e25bd3f7932fe7cc527719181706022100d10dd6dc687b7fcb603b034d9ca7e06c9585a6fe8ee78c31ba17c3f46a742dd0007600b21e05cc8ba2cd8a204e8766f92bb98a2520676bdafa70e7b249532def8b905e0000016fb4ef33630000040300473045022100c72375c581889cef8afac720f99fcde22921f4595607fd545d236bcc9ff152e502203ec896c6dd8cd49d83a92e2ac958410c35f4d012f997c76cfa1f3d293085c235
 . . . . [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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