nestoria.ae

Issued by GTS CA 1P5

About this certificate

This digital certificate with serial number b2:53:0e:bf:a1:4c:ec:f3:11:bf:1c:07:ce:c1:a9:80 was issued on by Google Trust Services LLC.

With 2 subject alternative names this certificate can be used to secure multiple fqdn's. This certificate is currently not expired, we haven't checked the revocation status of this certificate but you can do this simply on revocationcheck.com. 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:
  • DV certificate contains a subject common name, this is not recommended. If certificate policy 2.23.140.1.2.1 (CA/B BR domain validated) is included, only country and/or common name is allowed in SubjectDN. (BRs: 7.1.2.7.2)
  • 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)

Certificate Subject

CN=nestoria.ae

Google Trust Services LLC

Organization: Google Trust Services LLC
Country: US

This certificate will expire on

Certificate Details

Serial Number (hex): b2:53:0e:bf:a1:4c:ec:f3:11:bf:1c:07:ce:c1:a9:80
Serial Number (int): 237033843025206991323774910222353672576
Serial Number lenght: 128 bits, 16 octets

SubjectKeyId: 3c:de:09:c2:5a:8e:be:83:ed:19:03:1b:e9:55:f0:c0:c4:90:75:16
AuthorityKeyId: d5:fc:9e:0d:df:1e:ca:dd:08:97:97:6e:2b:c5:5f:c5:2b:f5:ec:b8

Fingerprint (sha1): 3d:bd:05:56:89:c7:89:cb:a6:bb:36:82:67:a8:a0:59:ac:f2:90:d6
Fingerprint (sha256): 42:bb:ba:ff:e6:ba:c7:80:b2:3d:f5:23:1c:f7:47:40:3e:bc:1d:fc:80:e6:ac:de:3b:83:9f:c7:c7:2d:42:2b

Issuing Certificate URL: http://pki.goog/repo/certs/gts1p5.der

Revocation information

OCSP Server: http://ocsp.pki.goog/s/gts1p5/RdqGJ_1wyZA
CRL Distribution Point: http://crls.pki.goog/gts1p5/GnKAhLi3E9E.crl

Check the revocation status for certificate nestoria.ae

2

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for nestoria.ae

Public Key Algorithm

RSA

Key Size

2048

Signature Algorithm

SHA256 with RSA

Key Usage

Digital Signature
Key Encipherment

Extended Key Usages

Server Authentication

Extensions

10 extensions
No unhandled critical extensions

CA Certificate

This is not a CA certificate

Subject Alternative Names

nestoria.ae
*.nestoria.ae

Other certificates including the domain name nestoria.ae

(limited to 100 certificates)
amp.nestoria.ae
amp.nestoria.ae
nestoria.ae
nestoria.ae
amp.nestoria.ae
nestoria.ae
amp.nestoria.ae
amp.nestoria.ae
amp.nestoria.ae
nestoria.ae
nestoria.ae
nestoria.ae
nestoria.ae
nestoria.ae
amp.nestoria.ae
nestoria.ae
nestoria.ae
amp.nestoria.ae
amp.nestoria.ae
amp.nestoria.ae
nestoria.ae
amp.nestoria.ae
nestoria.ae
nestoria.ae
s.nestoria.ae
amp.nestoria.ae
amp.nestoria.ae
nestoria.ae
nestoria.ae
amp.nestoria.ae
amp.nestoria.ae
nestoria.ae
nestoria.ae
amp.nestoria.ae
nestoria.ae
amp.nestoria.ae
amp.nestoria.ae
nestoria.ae
nestoria.ae
nestoria.ae
nestoria.ae
nestoria.ae
amp.nestoria.ae
amp.nestoria.ae
nestoria.ae
s.nestoria.ae
nestoria.ae

Certificate

The complete raw certificate details for nestoria.ae in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAtgCHYifsKKRgZBz0WDK/
yQQlneazK5g2TpibDeuAgAPdIOPFFW5iOYkP8VmOaypRkVfLCsLG3/aTxlL+LotT
lmUMauGCUBRRqTLlQCoC5thXXrJbqmpx0sm+cbuWcVUlftmYNlw4Tyz25M5ohQXu
+8FQRh74kxnaPs6sMtbY6hubCboqpCORFIIbFF+KxMDBythLxgCbdQ5yMGeM6y2k
jJmTHSMHsrCyjuBJwZz6BNaU+VO9yCZcDZehoRWCBBgdak9SGSKzlgufK5HqZMSx
o8F/D+1DIj6T6kJtAuq95WgSHJzpzmAsGwdzEvUFI/2VqEhv1JL4FzebS/S2YeNB
iQIDAQAB
-----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 237033843025206991323774910222353672576
 . . . . . . . . [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 'Google Trust Services LLC'
 . . . . . . . . . . . . [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 'GTS CA 1P5'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-04-03 11:22:58 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-07-02 11:22:57 +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 'nestoria.ae'
 . . . . . . . . [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 22975632285281287282463533997221446596471797787051346029416770028017455812607934744798105090142863993564468494698838058122432895692763152699950603918217283972199613115287478813675299174509449109016230243839458929434983613207916469712367552482551875443028443806705067779230620688160684904117323005858004026351338638133012310858493225214219478039308491673653506141881124069880651926601029817200144067624360541018486364158289052967637204175316758119495281517373344218366120140324521018824039719428665483789749573657137411138622661764737655972396653523316249089534833181234576150265341638178995973272671976101424562127241
 . . . . . . . . . . . . . . . . . . . . [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 (12 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: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)
							3cde09c25a8ebe83ed19031be955f0c0c4907516
 . . . . . . . . . . . . . . . . [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 d5fc9e0ddf1ecadd0897976e2bc55fc52bf5ecb8
 . . . . . . . . . . . . . . . . [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 (108 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.pki.goog/s/gts1p5/RdqGJ_1wyZA'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [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://pki.goog/repo/certs/gts1p5.der'
 . . . . . . . . . . . . . . . . [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 'nestoria.ae'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String '*.nestoria.ae'
 . . . . . . . . . . . . . . . . [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 (26 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 1.3.6.1.4.1.11129.2.5.3
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.31 (cRLDistributionPoints)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (53 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://crls.pki.goog/gts1p5/GnKAhLi3E9E.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 (245 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (242 bytes)
							00f000760076ff883f0ab6fb9551c261ccf587ba34b4a4cdbb29dc68420a9fe6674c5a3a740000018ea3e9987b000004030047304502204d171878b5f9236cd97e4248f52a187312881eaa817980250579de7b99fb4f77022100d0e8a3dc1ecf9c2fc2c5d79885c3670081907c2964d6a6363e80f7c2313ba635007600dfe156ebaa05afb59c0f86718da8c0324eae56d96ea7f5a56a01d1c13bbe525c0000018ea3e9991a00000403004730450220305f081a19e22a8ba5bff1bd66fb39274901aa7cc1e68664b4c4909f2e890dbd0221008d42f40e63d9c2a1fd5b2c28956d999e639ddcbc31bd3f79ae9662c937f51521
 . . . . [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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