minnesotanationalguard.com

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:90:8e:6a:95:dc:a7:b3:d0:fa:09:45:81:4a:52:3d:74:67 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=minnesotanationalguard.com

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:90:8e:6a:95:dc:a7:b3:d0:fa:09:45:81:4a:52:3d:74:67
Serial Number (int): 310526822430325469502742112434352270701671
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 77:d7:73:57:ea:44:84:9b:26:0c:8d:6e:de:0e:56:05:1a:3e:1f:b9
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 43:82:8b:43:58:b1:79:80:9b:f3:03:dc:8c:89:e7:7a:a4:07:d4:5b
Fingerprint (sha256): 52:0d:f2:c5:d8:99:98:43:24:ad:2e:b8:40:b6:52:65:b9:3b:21:4e:48:18:ab:4e:80:07:52:62:9b:cc:44:29

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 minnesotanationalguard.com

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for minnesotanationalguard.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

minnesotanationalguard.com

Other certificates including the domain name minnesotanationalguard.com

(limited to 100 certificates)

Certificate

The complete raw certificate details for minnesotanationalguard.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 310526822430325469502742112434352270701671
 . . . . . . . . [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 2019-09-13 14:14:07 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-12-12 14:14:07 +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 'minnesotanationalguard.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 721740259160905220840662168586569655379890072555096028869865162416311908450755253917958426314896225335372130614085523586963881057658278111883916290659974050714417846446245024229248562899100090921290745134601150250864842453031409279056523637498210710893455169621552958567589835114608201700814468809508087577233935397305927034109331619683903430256723988811198694259576630029685389193357708454344535218816412448594935272417658690840559514021142133288612714719587945249164507040586859778852416231418870853563384565695074776738234219872804672425427351164179193411361974732762366374438942199705088759569046653465746754081392226129871199616702169337875489059141159340816793903516115078020293587895784265002706541517760377431742944841491310333097228567683370962546645709463080065599792656813878720455604365450210909356763329802844238568160509916230562797053614401883075664167721621789360644269392415011289447132982499187322348209387954856571723970687736628810321601411540713902882668096378000378398492865329510320482224401527290057451400366451178304681378891105389878319901814259139227529153177985530764656015662459272967650668563401178908887734675929627440106511606948071411987388249227394128176923151643836928154291929463134792196075004317
 . . . . . . . . . . . . . . . . . . . . [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)
							77d77357ea44849b260c8d6ede0e56051a3e1fb9
 . . . . . . . . . . . . . . . . [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 (30 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'minnesotanationalguard.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)
							00f1007700e2694bae26e8e94009e8861bb63b83d43ee7fe7488fba48f2893019dddf1dbfe0000016d2b304c010000040300483046022100a8b3dd3a7effc9af51db78d6dcaefb12a3753923421bf0dd4ac03b1524e977b402210080f7cb2ae4e7a1cdf529a8b9e1ec8c081eb51406abe4d46bd2d3d9fe73e88694007600293c519654c83965baaa50fc5807d4b76fbf587a2972dca4c30cf4e54547f4780000016d2b304a2c0000040300473045022100b969e2a84b3dd156cae5f65b11bda23e671816a499a9e06603090651262aca1202205430b27583c33a51293209913df5c2a0bc39463a8683fe551f75fb276dbfb40e
 . . . . [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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