ombu.it

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:ee:79:4d:d3:ea:d2:3d:a3:e0:f5:c5:70:23:b1:24:32:6a was issued on by Let's Encrypt.

With 2 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:
  • Subscriber Certificate: commonName is deprecated. (BRs: 7.1.4.2.2)

Certificate Subject

CN=ombu.it

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:ee:79:4d:d3:ea:d2:3d:a3:e0:f5:c5:70:23:b1:24:32:6a
Serial Number (int): 342485301815005059015776923050112671036010
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: d5:68:ce:6f:e2:7f:b1:ee:29:c8:fc:05:3b:4c:3a:80:de:e2:3e:12
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): a8:c9:e1:2d:ba:7d:3c:b3:41:71:b4:2a:a5:3e:c0:25:db:f0:84:6b
Fingerprint (sha256): 3b:ab:22:59:ff:59:6d:73:1e:6b:63:44:60:ec:96:09:f3:69:bb:8a:c0:7b:19:2f:7b:b7:bb:2f:25:24:d8:ea

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 ombu.it

2

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for ombu.it

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

*.ombu.it
ombu.it

Other certificates including the domain name ombu.it

(limited to 100 certificates)

Certificate

The complete raw certificate details for ombu.it in PEM and ASN.1 format.

Certificate (PEM)

-----BEGIN CERTIFICATE-----
MIIGUTCCBTmgAwIBAgISA+55TdPq0j2j4PXFcCOxJDJqMA0GCSqGSIb3DQEBCwUA
MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD
ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0yMDAxMTUwOTE0NTNaFw0y
MDA0MTQwOTE0NTNaMBIxEDAOBgNVBAMTB29tYnUuaXQwggIiMA0GCSqGSIb3DQEB
AQUAA4ICDwAwggIKAoICAQCwy00UH38KXtdivvOGGfvRNEX64L35uJyIaiBv0ZB7
mobHlf/MdqwHfNIR2WZvauL7jFyveZrlibZCUF/M6YfXIyNOin6BAdpC/NMdWYjo
tymkR8GVnOPXXQT2ckZ8yCshFjHclYk2Im9XgxN6/e+BdK9r3Er1xG2VGq5ZaE+i
DXPRntLz+GR3vMZwgGEcpa1gL6VmTUl3LyKHPkYC9CF48ZYO4Y6drrnErSCjgHGT
GLdu0jkv1Y4GWM4O8T2qHL6el9HY+VpwlBD1Lx/OFMNbK9eOo47uSjPokuD+WiNB
0Du62gC9k1c/niCx4HSyPacM19EGjvsQuMwOR+2ArVlAUmF1C9rs8vLs0+pa6UIs
UNTPsJxBtVfQHAha1f7cHmsZLnh5IazWJ0BlOOD3ToYgzULAt8ExLwsVwMEdJMde
pktACM9fINNIXiggzPOyL72voWOAi1WpTspURk8W5B1JxiE0QNO0vRTdqH5enGxe
a/9ahqaU4SLGsFwMSfm+tRAQUQjHnCepRj/2I9XO2jlMn0nbbINR17MDiHtyFpVW
8ngt5Iv6XytsVMGe91CObPeRmmIbh65AAlVWsLB22OZP2zQiU36ESBuA/3g/CadK
iobtcpmg5il4gS0Vxy1Q1m3I+5np+RZi2zy4usZOyqjBiL0Sk86eBSvm4Xc8h2Je
RwIDAQABo4ICZzCCAmMwDgYDVR0PAQH/BAQDAgWgMB0GA1UdJQQWMBQGCCsGAQUF
BwMBBggrBgEFBQcDAjAMBgNVHRMBAf8EAjAAMB0GA1UdDgQWBBTVaM5v4n+x7inI
/AU7TDqA3uI+EjAfBgNVHSMEGDAWgBSoSmpjBH3duubRObemRWXv86jsoTBvBggr
BgEFBQcBAQRjMGEwLgYIKwYBBQUHMAGGImh0dHA6Ly9vY3NwLmludC14My5sZXRz
ZW5jcnlwdC5vcmcwLwYIKwYBBQUHMAKGI2h0dHA6Ly9jZXJ0LmludC14My5sZXRz
ZW5jcnlwdC5vcmcvMB0GA1UdEQQWMBSCCSoub21idS5pdIIHb21idS5pdDBMBgNV
HSAERTBDMAgGBmeBDAECATA3BgsrBgEEAYLfEwEBATAoMCYGCCsGAQUFBwIBFhpo
dHRwOi8vY3BzLmxldHNlbmNyeXB0Lm9yZzCCAQQGCisGAQQB1nkCBAIEgfUEgfIA
8AB2AF6nc/nfVsDntTZIfdBJ4DJ6kZoMhKESEoQYdZaBcUVYAAABb6iy4csAAAQD
AEcwRQIhAKEuyFCBdlEFfxKO0ls6Gr6lcZPQMOE9G2AzjfTSVXLCAiB84qfaP4M/
EA7+RQq3aUGlgEsvJhrWjsH8C+rZpGuyeQB2ALIeBcyLos2KIE6HZvkruYolIGdr
2vpw57JJUy3vi5BeAAABb6iy4bQAAAQDAEcwRQIhAJ0pkTmX0PtELyirE51A+DjG
f/d1xHZTWS8qihBqp5i3AiArcZgsZfi3s8ATkYZKcUmXfFOn4WGFYdu29wM8lPxi
KTANBgkqhkiG9w0BAQsFAAOCAQEAhbqMRZfXycHiW7ia/Yn0YGtJWV3FICCplFuJ
+QQHwW+J2o95fH/5mefshZE6bOtN4AtZnm3SiuEQz/xvbUhL6DDxFeX83mA/h6F4
C3uYDACstbJMhitzCijThljF0j0nwXydkNhaEzOpJcLKtaadZJLr9bvof9qcEdqB
+Iqx+oI0qZ0skNXJUJDYT8O9cLdy6VcZim2YF7Ym+No5iJyllLT97X0YSXnnop/W
myfnEWC7n6iyxXKrkSW9gvhNYAl6WpzhVnS5y+jrDDN4A6+XdDONjBzUBmcgRRx0
XWbE7yb4icLVm7septymx62NI7y4jOM5Z0fUf0xKIN3FKrlfvA==
-----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 342485301815005059015776923050112671036010
 . . . . . . . . [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 2020-01-15 09:14:53 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-04-14 09:14:53 +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 'ombu.it'
 . . . . . . . . [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 721257184404814984740976083978721127849662472923488776649090282941788802117307863329644371612256080509458346019296687675086376438123409606634676357086188511100920609611609125872936642736276311196243619763115133400423333054539306396625093620431118811334824103215250224974897303679542849688027207105222135900732253970319918582656078585723198644451401563747177403878393086456869806074821429799755594294547644097433978003689803552049867390529913747212814357720665884501705514716923854774795917834674204207237111832496754922288015622617485281933263403302688308747661078349994988212689590014320341496310029036848781081612914626427413030842606641975501168857516219038912596920596589097253286135909391370785507497727229552193399210605287027573545025639806727143194940384654419743391553804463124073334909319508712514103359403347682841642272628131794834328239668219718938140020992871318685087533334093264737232807714936852119403785071251963755153966908940900921060970345598855140886603573346412669083603965362777225888054501378928345713345524383296170318923862465687709205528728015160412675676166997247079798518973557127678579708093740983920475144036781228313962549294150406921524241354401714331943052203841607215475958964902958716267765325383
 . . . . . . . . . . . . . . . . . . . . [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)
							d568ce6fe27fb1ee29c8fc053b4c3a80dee23e12
 . . . . . . . . . . . . . . . . [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 (22 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String '*.ombu.it'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'ombu.it'
 . . . . . . . . . . . . . . . . [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)
							00f00076005ea773f9df56c0e7b536487dd049e0327a919a0c84a1121284187596817145580000016fa8b2e1cb0000040300473045022100a12ec850817651057f128ed25b3a1abea57193d030e13d1b60338df4d25572c202207ce2a7da3f833f100efe450ab76941a5804b2f261ad68ec1fc0bead9a46bb279007600b21e05cc8ba2cd8a204e8766f92bb98a2520676bdafa70e7b249532def8b905e0000016fa8b2e1b400000403004730450221009d29913997d0fb442f28ab139d40f838c67ff775c47653592f2a8a106aa798b702202b71982c65f8b7b3c01391864a7149977c53a7e1618561dbb6f7033c94fc6229
 . . . . [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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