www.nao.gov.uk

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 04:00:68:f3:c2:a1:e4:ac:65:7d:4f:57:5e:21:67:ad:86:22 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=www.nao.gov.uk

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 04:00:68:f3:c2:a1:e4:ac:65:7d:4f:57:5e:21:67:ad:86:22
Serial Number (int): 348588649114353210070362762766019826910754
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: 3c:2d:de:31:80:2f:0e:0c:70:cc:ea:48:6e:9a:d0:06:ee:29:27:46
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 0a:ae:bb:a3:2c:c2:14:3f:09:e6:18:3b:a3:0a:79:39:07:ff:b4:be
Fingerprint (sha256): fd:96:a5:04:29:68:41:06:43:02:e8:bc:84:02:d3:0c:51:8a:68:45:d8:ea:71:c7:3e:96:3a:9a:47:27:63:57

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.nao.gov.uk

2

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for www.nao.gov.uk

Public Key Algorithm

RSA

Key Size

2048

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

nao.gov.uk
www.nao.gov.uk

Other certificates including the domain name nao.gov.uk

(limited to 100 certificates)
www.nao.gov.uk
www.nao.gov.uk
*.nao.gov.uk
www.nao.gov.uk
www.nao.gov.uk
www.nao.gov.uk
sip.nao.gov.uk
naomail.nao.org.uk
nao.org.uk
nao.org.uk
naoccesite1.nao.org.uk
www.nao.gov.uk
mailedge.nao.gov.uk
www.nao.gov.uk
*.nao.gov.uk
sip.nao.gov.uk
nao.gov.uk
*.nao.gov.uk
naoccesite1.nao.org.uk
www.nao.gov.uk
www.nao.gov.uk
nao.org.uk
*.nao.gov.uk
*.nao.gov.uk
www.nao.gov.uk

Certificate

The complete raw certificate details for www.nao.gov.uk in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA3L+XUmN3gpLmT4t6PXVg
Se7OSSW9b809850AZ7ueVykbt6j2bCDDDLWe10v5tdqVFgpqY6TWXTAZwcqU2FZ3
A0fzVQRIfzZYIeG6flttCxxIQZ26zyp594DjEPWCmx5yeOBbS4at5vYImliNG6rd
o7uUGaepEhv6b4RfJ9SYs7DrFWSus+PWGSl5ZKRUPo09y/ap6OIWomCxQtasEU7Q
nkNFl/YZkYL4KVS2SrQHkwVAfaquo3BdDTwI7PRKzqTQSoJjZ5w4w5uuc2lKGRAJ
42prX4B8h/K1RKOtjUTe6TkO4W07qH2ykbh2mg7Ztbv7kLMzAv14K3BdNMFi4iyR
6QIDAQAB
-----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 348588649114353210070362762766019826910754
 . . . . . . . . [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 2019-09-04 21:02:23 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-12-03 21:02:23 +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.nao.gov.uk'
 . . . . . . . . [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 (2160 bits)
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 27866904185595865342396046927603565933787312491365005896744155840110448239036097164823893013570639019582922661388399379110985608064334504018274213840928148827800971534939654702957974136993203332908783745959758411061819114783342064591528414853258670893449641218807823395670364157077342784755379750725254089550589497737288949840667365073803095814086106028111849557239787249162763296681158342097345513234647320048194186976739371626033830736854187762262245519507872247118015347300929262613067674796902601233320462583585068017429068881789600009463712598232124072155112018213500032929399366816075221005022023602877640774121
 . . . . . . . . . . . . . . . . . . . . [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)
							3c2dde31802f0e0c70ccea486e9ad006ee292746
 . . . . . . . . . . . . . . . . [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 'nao.gov.uk'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.nao.gov.uk'
 . . . . . . . . . . . . . . . . [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)
							00f00075006f5376ac31f03119d89900a45115ff77151c11d902c10029068db2089a37d9130000016cfe4cd49600000403004630440220749912df97b2271ec973d14c89f634dce7dae43aa5f52329e2ece141cd98f96a022078c531b10e42b955ed68a4507ac7c6b3ac5cc1414bc809e0fc1f5aa971c1b2a100770063f2dbcde83bcc2ccf0b728427576b33a48d61778fbd75a638b1c768544bd88d0000016cfe4cd4620000040300483046022100bcc080d279bbe42a1b414855eaa6638ffb80a5d2e6f2fe2ab45b708b8755d24d022100d8dd4dbc136280f1e39b7bc81509533fa51afe5cfdba4a7f200e30a5514c93d4
 . . . . [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)
		0093baba7466f4cce1d060cd65f04439f71cadfa3a42f7857ed42485320feefc0cd0606c6d88ba5425a72b62439a0d1f73d3cce53da85448b6e56624d28f92a31cba190ab37efd2ec9fb53414cdcdde8ee7b49d8858135013c1e65cdb396beeda3a6475a6091a458b9df9b178f800801c533c1e4e9b609378d5865515a68e9951a399cd6e71472eacc73344fac8e7d66ff2caaa1e382fa5b1aebe1c26d32ee526391a2c6fd8f4bb0dd39a20ee4db489a6cac11424587a6d681234192a97e0e3ea4e2a58216a2e16da048b98e00d730d49598c44d353f2e8f080fd207aabf19fe5e82278071ffd4d238c969ffc1392e3b07da53e8382a4b9a137458004828a81f79