globalgecc.edu.np

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:ad:09:2e:a4:a6:cf:31:4b:61:2c:b1:5f:81:01:66:94:e8 was issued on by Let's Encrypt.

With 7 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=globalgecc.edu.np

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:ad:09:2e:a4:a6:cf:31:4b:61:2c:b1:5f:81:01:66:94:e8
Serial Number (int): 320217912509751823930572602224190094218472
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: c3:f1:ff:74:7d:f5:08:72:2d:7d:86:78:4b:2e:23:2a:f7:62:d6:6e
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): a1:65:ae:e8:a2:c0:4c:c8:a9:ad:0d:54:06:60:46:b3:ba:32:68:10
Fingerprint (sha256): f5:12:af:ed:80:ad:cb:ab:4e:94:16:e4:2a:93:7b:55:38:ee:2c:a3:1b:7f:ef:c2:b4:0a:01:b5:7f:0b:d7:0b

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 globalgecc.edu.np

7

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for globalgecc.edu.np

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

autodiscover.globalgecc.edu.np
cpanel.globalgecc.edu.np
globalgecc.edu.np
mail.globalgecc.edu.np
webdisk.globalgecc.edu.np
webmail.globalgecc.edu.np
www.globalgecc.edu.np

Other certificates including the domain name globalgecc.edu.np

(limited to 100 certificates)
globalgecc.edu.np
globalgecc.edu.np
globalgecc.edu.np
globalgecc.edu.np
globalgecc.edu.np
globalgecc.edu.np
globalgecc.edu.np
xiaomi.shardait.a2hosted.com
quest.edu.np
quest.edu.np
globalgecc.edu.np
globalgecc.edu.np
globalgecc.edu.np
globalgecc.edu.np
globalgecc.edu.np
webmail.globalgecc.edu.np
globalgecc.edu.np
globalgecc.edu.np
www.coronaschool.edu.np

Certificate

The complete raw certificate details for globalgecc.edu.np in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAs1656E3Q/KPSW1K64baD
Li2JLnx96wMh3XWrxeadYqr2ncngRWxvELbANtexnoxXYC29A28Ho3iCvMXQ9QMd
koq/t0d4zNYGlhq6V0UqnfrngnR92t7yGF1MtO+caQt0p4d3FwMlCT4v/Nq2CiL6
yUMBUqVlq1KZ+TR03Hq/YaZDCMK+8C2N9CvMd/O3iRw7xqbRrWpwNF3Z2iLSLeP4
A2dGTP7WM0mY+frRtEmy227vVXcx1DhI8OdIFGSNLyHOi3k6sh2fSm29mBYs/w3D
+x2K8LORGihizLWtmPeczTQh0TB4LSxY4jugf0BGpudgJ/nMZocD8lEuekIra0Nd
4QIDAQAB
-----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 320217912509751823930572602224190094218472
 . . . . . . . . [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 2019-02-13 23:17:53 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-05-14 23:17:53 +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 'globalgecc.edu.np'
 . . . . . . . . [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 22643367819553141640390155160218047969524430172835390390852383508065077880524590003910645573784423902465647651945952475886570432504538471319084310118189758143386084902231018218655165889799504159268996428051039316585901867142913006933124826146732902538272711637894583027810297938945146715685123574810645844552338946247143200266560482851577718644112083060037859624096612922697124512023722727947703754451892527687755539957717480349598784688880098328769792965078307012792578557865223948463217003518554547726712318630880606769449777717310193588506291734076314392571895457688623517060070619750468579150232745964533660736993
 . . . . . . . . . . . . . . . . . . . . [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)
							c3f1ff747df508722d7d86784b2e232af762d66e
 . . . . . . . . . . . . . . . . [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 (181 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'autodiscover.globalgecc.edu.np'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'cpanel.globalgecc.edu.np'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'globalgecc.edu.np'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'mail.globalgecc.edu.np'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'webdisk.globalgecc.edu.np'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'webmail.globalgecc.edu.np'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.globalgecc.edu.np'
 . . . . . . . . . . . . . . . . [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)
							00f0007600e2694bae26e8e94009e8861bb63b83d43ee7fe7488fba48f2893019dddf1dbfe00000168e95decad000004030047304502210083910f8edf22d1cc904bcccf36d001d950f984cc451d02a8a83bb8964ef751f702202e3006926a2ecd264795cfc7ae5277d088479191a4791dc1c3d92bf95c953242007600293c519654c83965baaa50fc5807d4b76fbf587a2972dca4c30cf4e54547f47800000168e95ded05000004030047304502200d9cd66b4442b27055f63207ce3b66feaf083770610db64634cb220ee84d8f54022100abc0079786dd661f56d16c21f80b71f114f1e6566d57c372800f00f2f6f1b79e
 . . . . [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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