pm.ou.edu.vn

Issued by R3

About this certificate

This digital certificate with serial number 04:f8:8c:bc:5c:e0:9e:57:fe:a3:87:46:2a:22:c8:30:3c:3e was issued on by Let's Encrypt.

With 4 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=pm.ou.edu.vn

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate will expire on

Certificate Details

Serial Number (hex): 04:f8:8c:bc:5c:e0:9e:57:fe:a3:87:46:2a:22:c8:30:3c:3e
Serial Number (int): 433026240678430815244957820450332891692094
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: 2c:2a:13:b4:72:84:85:c1:51:d7:de:a3:ee:52:dc:b0:0c:82:3f:63
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): eb:6d:05:20:d8:07:3b:87:25:db:6f:58:d2:4f:9e:ba:6f:64:33:07
Fingerprint (sha256): 65:4f:54:e0:f5:8a:19:25:0f:16:06:dc:35:1a:a6:44:ca:00:f1:24:79:bb:16:89:07:73:9a:3c:b8:f1:e1:4c

Issuing Certificate URL: http://r3.i.lencr.org/

Revocation information

OCSP Server: http://r3.o.lencr.org

Check the revocation status for certificate pm.ou.edu.vn

4

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for pm.ou.edu.vn

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

api.ou.edu.vn
gsqa.ou.edu.vn
hotro.ou.edu.vn
pm.ou.edu.vn

Other certificates including the domain name ou.edu.vn

(limited to 100 certificates)
3b2.ou.edu.vn
kqtkden.ou.edu.vn
support.alephys.com
id.ou.edu.vn
journalofscience.ou.edu.vn
help.webspecia.in
id.ou.edu.vn
support.okra.ng
id.ou.edu.vn
www.patolo.jp
support.zea-iot.com
id.ou.edu.vn
kqtkden.ou.edu.vn
kqtkden.ou.edu.vn
id.ou.edu.vn
id.ou.edu.vn
help.epic36.com
support.epigrid.com
id.ou.edu.vn
id.ou.edu.vn
id.ou.edu.vn
elosupport.ou.edu.vn
id.ou.edu.vn
id.ou.edu.vn
thi.ou.edu.vn
devlms.ou.edu.vn
id.ou.edu.vn
kqtkden.ou.edu.vn
id.ou.edu.vn
kqtkden.ou.edu.vn
id.ou.edu.vn
id.ou.edu.vn
pm.ou.edu.vn
id.ou.edu.vn
sg.support.te-cloud.advantest.com
sg.support.te-cloud.advantest.com
id.ou.edu.vn
id.ou.edu.vn
id.ou.edu.vn
kqtkd.ou.edu.vn
www.patolo.jp
help.webspecia.in
support.1rink.com
id.ou.edu.vn
support.sisoy.id
ceats.ou.edu.vn
kqtkden.ou.edu.vn
id.ou.edu.vn
id.ou.edu.vn
support.vicoimaging.com
devlms.ou.edu.vn
devlms.ou.edu.vn
devlms.ou.edu.vn
id.ou.edu.vn
kqtkden.ou.edu.vn
id.ou.edu.vn
kqtkden.ou.edu.vn
id.ou.edu.vn
lms.ou.edu.vn
help.webspecia.in
pm.ou.edu.vn
devlms.ou.edu.vn
id.ou.edu.vn
help.webspecia.in
id.ou.edu.vn
dichvu.ou.edu.vn
id.ou.edu.vn
id.ou.edu.vn
support.epigrid.com
pm.ou.edu.vn
support.namastepay.com
id.ou.edu.vn
id.ou.edu.vn
id.ou.edu.vn
devlms.ou.edu.vn
support.okra.ng
tienichsv.ou.edu.vn
id.ou.edu.vn
lms.ou.edu.vn
www.patolo.jp
id.ou.edu.vn
kqtkden.ou.edu.vn
id.ou.edu.vn
support.namastepay.com
id.ou.edu.vn
support.zea-iot.com
zoa.ou.edu.vn
help.webspecia.in
devlms.ou.edu.vn
id.ou.edu.vn
support.alephys.com
support.okra.ng
id.ou.edu.vn
elosupport.ou.edu.vn
devlms.ou.edu.vn
kqtkden.ou.edu.vn
kqtkden.ou.edu.vn
id.ou.edu.vn
support.epigrid.com
support.namastepay.com

Certificate

The complete raw certificate details for pm.ou.edu.vn in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAjOrR0OeDM2N4Je3vT66w
cv4HingnVYNweFEjkJslahNR5a4V9woar+4b0QRNdXs5E1/MFJ8MoAS+9ODvjGGb
EMR2BEbeNZG6J09AruxvfLrj6b49NvtlnZkGyZ8U7nftNKao2wQnIXzGEeF5hOc9
8FXazs7sog/AVNxgSqy0Hm4MxIh7o89yHv65b2H+AlHMBh6fzZfYcWo2aagwuwCZ
X57bNyMyhKDEGPpod909p9N3lnFGyRGnQKQ/Jlg10OqTq9vhDMrI//EJZVeG3r/V
kfwHwuO12kXWV7irvfwN85etcFrk0aKg0NF/I9t50J64l8XQwxYUr2uPpRafOXGY
awIDAQAB
-----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 433026240678430815244957820450332891692094
 . . . . . . . . [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 'R3'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-04-04 05:01:33 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-07-03 05:01:32 +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 'pm.ou.edu.vn'
 . . . . . . . . [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 17789156552685294510781165355150599175842627120914906701825236797893309695362357195747707549595612052067080810988197825384716387129028502535139790878002313001643492773375976272494504165897277585264062140434285764755856314304016536140263342694828035972506807807826684254589222993899730924583348483339823518307021717125475470063176598954097429362428889019076768301340307694782550218884369443035115003768386254031193621409568145482810949846691527729643588383825654322397160083996458037030585506224718485755034794980825353479757523003837241218487906692862769699909244300652455363511728698226083982568558202859530730182763
 . . . . . . . . . . . . . . . . . . . . [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)
							2c2a13b4728485c151d7dea3ee52dcb00c823f63
 . . . . . . . . . . . . . . . . [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 142eb317b75856cbae500940e61faf9d8b14c2c6
 . . . . . . . . . . . . . . . . [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 (73 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://r3.o.lencr.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://r3.i.lencr.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 (64 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'api.ou.edu.vn'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'gsqa.ou.edu.vn'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'hotro.ou.edu.vn'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'pm.ou.edu.vn'
 . . . . . . . . . . . . . . . . [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 (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 (Domain Validation Certificates Policy)
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.4.1.11129.2.4.3 (CT Precertificate Poison)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:1|false] BOOLEAN true
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (2 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:5|false] NULL 
 . . . . [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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