DV SSL/TLS Certificate for flagermus.dk

Certificate is witin its validity period

Issued by Let's Encrypt (R10)

About the flagermus.dk DV SSL/TLS Certificate

This certificate with serial number 06:aa:ff:fd:32:86:44:1d:c4:0a:e4:37:b2:74:4b:07:3e:40 for flagermus.dk was issued on by Let's Encrypt.

This DV SSL/TLS Certificate is currently within its validity period but we haven't checked the revocation status of this certificate, you can do this simply on revocationcheck.com. We have found some issues with the compliance of this certificate, they are be shown below. We hope this DV SSL/TLS Certificate review for flagermus.dk provides you with the detailed information you were looking for.


We have identified some issues with this certificate:
  • 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)

Let's Encrypt

Organization: Let's Encrypt
Country: US

This X.509 certificate will expire on

Certificate Details

Serial Number (hex): 06:aa:ff:fd:32:86:44:1d:c4:0a:e4:37:b2:74:4b:07:3e:40
Serial Number (int): 580861985781909516452293874910320623304256
Serial Number Length: 139 bits, 18 octets

Subject Key Identifier: 88:8a:07:38:69:b5:ca:01:b1:29:63:a8:64:3d:ba:9c:49:ca:3a:ce
Authority Key Identifier: bb:bc:c3:47:a5:e4:bc:a9:c6:c3:a4:72:0c:10:8d:a2:35:e1:c8:e8

Fingerprint (SHA-1): 9a:1d:f9:65:72:0d:21:3b:3c:df:8b:41:9f:a5:91:c6:ff:89:55:41
Fingerprint (SHA-256): 57:f5:08:92:9b:28:5d:90:56:c1:b9:7a:d1:f2:1f:ef:58:77:cc:ce:da:ca:db:8a:7f:6b:ee:8d:68:9b:d6:2c

Issuing Certificate URL: http://r10.i.lencr.org/

Revocation Information

CRL Distribution Point: http://r10.c.lencr.org/65.crl

Check the revocation status for certificate flagermus.dk
1
DNS Names
0
Email Addresses
0
IP Addresses

Advanced Certificate Properties

Technical details of the X.509 certificate for flagermus.dk

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
10
CA Certificate
This is not a CA certificate

Subject Alternative Names

flagermus.dk

X.509 Certificate

The complete raw X.509 certificate details for flagermus.dk 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 580861985781909516452293874910320623304256
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.113549.1.1.11
 . . . . . . . . . . . . [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
 . . . . . . . . . . . . . . . . . . . . [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
 . . . . . . . . . . . . . . . . . . . . [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
 . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'R10'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2025-07-18 10:24:50 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2025-10-16 10:24:49 +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
 . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'flagermus.dk'
 . . . . . . . . [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
 . . . . . . . . . . . . . . . . [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 883670158528976727086103317764512560607851041065225421555054355714678041448144568771380668237517016929771212711581619378962136880961016563969446365643138472504300601739968193139114685586815931725731615047295819661386421890912269221069853320993570592066495379139593003629343061375126659059692361466189930082207276560124454152513704940488310830870170115165355473999742493448916246758092611317730671179513388789706435697200981121660987589347559180696386084828704613602148108728945849408521386873335779094360723211593034070183803514374285230633782589512900049667218837821743168475526801157613443733102728565820548499426793814114838170046219687549537324790360017800856981282812406473388996021956052842141432474324552939458932994482220751109506372292233777142335480338498982594645520944282349305853403686163400542776013077873439323535721124259099854318149375089042780121621574121924358066447049275535700112968645942931724454821661661188727944896752927937789595171498938659724765546995427840123781506222104328425959837494095815914138325582394897247116916488619225935272045670124691675026647225073296918684583453837841161433342411833839641032999412433995210383060019258734208758196074930989668464571135725260428871621989903588955149953687963
 . . . . . . . . . . . . . . . . . . . . [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
 . . . . . . . . . . . . . . . . . . . . [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
 . . . . . . . . . . . . . . . . . . . . [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
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.3.2
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.19
 . . . . . . . . . . . . . . . . . . . . [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
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (22 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (20 bytes)
							888a073869b5ca01b12963a8643dba9c49ca3ace
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.35
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (24 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:0|false] OtherName bbbcc347a5e4bca9c6c3a4720c108da235e1c8e8
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.1.1
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (39 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.48.2
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:6|false] IA5String 'http://r10.i.lencr.org/'
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.17
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (16 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'flagermus.dk'
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.32
 . . . . . . . . . . . . . . . . . . . . [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
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.31
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (39 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:0|true] OtherName 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:0|true] OtherName 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:6|false] IA5String 'http://r10.c.lencr.org/65.crl'
 . . . . . . . . . . . . . . . . [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)
							00f10076000de1f2302bd30dc140621209ea552efc47747cb1d7e930ef0e421eb47e4eaa34000001981d4642050000040300473045022100baf5231dffe0f07e83454e7f94372edf04172afc68fcbc347ad85f13dd2e36ee02207bfca20e5fab45dfba825bc755426a2773f8709fc376bd8a16d93f83cde97085007700dddcca3495d7e11605e79532fac79ff83d1c50dfdb003a1412760a2cacbbc82a000001981d4642790000040300483046022100ba66ed5c4f98d68af44736ce1c989d2519c1776063c952d064f01f0ab8966639022100c1d806e83a1e3277a321f85d36546ad18d136938fe610639a6601751bba08d3d
 . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.113549.1.1.11
 . . . . . . . . [c:0|t:5|false] NULL []
 . . . . [c:0|t:3|false] BIT STRING (2048 bits)
		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