csa.edu.ph

Issued by R3

About this certificate

This digital certificate with serial number 03:f7:af:82:26:16:1e:4c:1d:ea:b0:ab:ea:b3:af:67:7b:1e 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:
  • 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=csa.edu.ph

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:f7:af:82:26:16:1e:4c:1d:ea:b0:ab:ea:b3:af:67:7b:1e
Serial Number (int): 345619893095090471304687220987546032372510
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: fb:b8:81:cd:02:d2:52:cf:bc:73:cb:30:f5:9c:0a:35:bd:ae:0c:8e
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 2e:ab:8c:aa:bf:27:1e:44:62:0c:67:10:66:c0:6c:38:0f:a8:b5:1e
Fingerprint (sha256): 7a:40:8d:f8:5e:45:44:66:ed:61:92:d7:21:f6:96:f4:97:e0:39:21:ec:79:1d:eb:8d:46:ea:31:e3:8f:9f:a2

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

Revocation information

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

Check the revocation status for certificate csa.edu.ph

2

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for csa.edu.ph

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

9 extensions
No unhandled critical extensions

CA Certificate

This is not a CA certificate

Subject Alternative Names

csa.edu.ph
www.csa.edu.ph

Other certificates including the domain name csa.edu.ph

(limited to 100 certificates)

Certificate

The complete raw certificate details for csa.edu.ph in PEM and ASN.1 format.

Certificate (PEM)

-----BEGIN CERTIFICATE-----
MIIF8DCCBNigAwIBAgISA/evgiYWHkwd6rCr6rOvZ3seMA0GCSqGSIb3DQEBCwUA
MDIxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MQswCQYDVQQD
EwJSMzAeFw0yMzEwMDUxMjE2NDRaFw0yNDAxMDMxMjE2NDNaMBUxEzARBgNVBAMT
CmNzYS5lZHUucGgwggIiMA0GCSqGSIb3DQEBAQUAA4ICDwAwggIKAoICAQC/HbAH
/AoDw/+mWgJMf7r1MVJILNjgCUfpEha8oMxrOsUC/+r7FbQml/so3C5260kztn4m
ylJWdg5y48LDuAiX4fmgsXlWGIryJg6LkhHgEsHLrqIwiCgjLMnE4cP+KpU7WLQP
VHnIHcVa9cijEO+XGOVzHKgQzQPDNrgddBWPk4ExRPIYVKTXp3o3X7h4uASA7dBs
6OPkg+w3p0S+eQVDMoPRmVHvmkMwlHD+kBVNTmZ4aByLO5qfOZSTbhp0/WiL7kal
O1E89RYnanLa3Q38PJI8syR/qwwiuqaqjXsIfTcBGekwn4PSzl6E7q50MUUD4boY
FgDzYp2t0lSSGaNjnkZc1mLrW4oUrs1m2uA5aVkpNTdU90fgtRaaKVNSuwC6PD0v
RHQPvtNd6rfiiJh7SbztGSTpMzLPr91Cczwga9+dLXJQLeByGtE+njq79XvgS7xY
ZdzwRSYgiaWMQHvZAJDMnx25ltUwZVu9ya1XBK0zRhNyQPLO6emLfpXcmfPlrRiv
Jgyd/Ke8qp7gjzTuaslXfZTPREuMIvJCt/ttAd7vh9W417GHQa7uXwQXXsuYw/7j
VrNIiFN4pakJQSKvbXhnal4PajfkKagQQyPUDY3gjetj7qfCc6oluHki8JGJ/vFr
/PHOj6LzmoCdWktk6yPWr5lF6OSnK1iT9bYD+wIDAQABo4ICGzCCAhcwDgYDVR0P
AQH/BAQDAgWgMB0GA1UdJQQWMBQGCCsGAQUFBwMBBggrBgEFBQcDAjAMBgNVHRMB
Af8EAjAAMB0GA1UdDgQWBBT7uIHNAtJSz7xzyzD1nAo1va4MjjAfBgNVHSMEGDAW
gBQULrMXt1hWy65QCUDmH6+dixTCxjBVBggrBgEFBQcBAQRJMEcwIQYIKwYBBQUH
MAGGFWh0dHA6Ly9yMy5vLmxlbmNyLm9yZzAiBggrBgEFBQcwAoYWaHR0cDovL3Iz
LmkubGVuY3Iub3JnLzAlBgNVHREEHjAcggpjc2EuZWR1LnBogg53d3cuY3NhLmVk
dS5waDATBgNVHSAEDDAKMAgGBmeBDAECATCCAQMGCisGAQQB1nkCBAIEgfQEgfEA
7wB1ADtTd3U+LbmAToswWwb+QDtn2E/D9Me9AA0tcm/h+tQXAAABiv/7xoEAAAQD
AEYwRAIgJ61FkOgCimfnaSHLlIJbTumR0vZdDDzOzaG8HiLBF+gCICHuuyjWOX2Z
5XLAybpLJ5bKzHeIAtudgF7lqO2Ku8ftAHYAdv+IPwq2+5VRwmHM9Ye6NLSkzbsp
3GhCCp/mZ0xaOnQAAAGK//vGwQAABAMARzBFAiB0PaPSYayB2QeBeVBgRayVuFaY
iSR+DnIwbFKdm4yBDgIhAPJH75jTihrb/cA3TMGwW+poTnf51tS2dmYbwxn1MGEE
MA0GCSqGSIb3DQEBCwUAA4IBAQB8J+4mHllqqHTPJFi+s+7pcrPrcLtBwIyp8XzZ
iL62Qyjgk+N+2BhmmJ06I96TNhL/Phzu/zVnsvQ4xYR6MgNNkZ0Pj2GH8fwYSBE3
l/clG95xiPo0we33JN9Olpl8tqdlQI8KHFUnbOb1X6v0pCT4coPPDVhMRH7bjNu9
caywxJVs4cueKGyX2ACLgqXdAIGpRjs5mqsl8ts7QcONHjOSFkymbAlM8yKo4utv
G6mDSCBPKGbs35cdks9Ualr70Qf0xo1w6p9KIxekhyci2X9bm5sw8KRAsdSaMy8g
dn5YDBMBYMjoxeqMz/ioRTk3xkF10yHpbgI1BArGaqayrZmy
-----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 345619893095090471304687220987546032372510
 . . . . . . . . [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 2023-10-05 12:16:44 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-01-03 12:16:43 +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 'csa.edu.ph'
 . . . . . . . . [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 (4208 bits)
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 779685122188366219771191881393339484569107148039954788906585119687740316501177962053730646110530588628335086243366323559300470889161646203800042688279672579111947239634823737524154461217979724175174324369382692658314062721929906411719693180425319794956812758305781137559029112894957906694061283900363694430430214271548373111930979177616687980258536483433033294288361230895594071327353341834998605332420850264103289498204443985636167995554640791467141592801345899884655384915707184463901048094380701231019958863335448838043476142200243658936238171352991623699398749753774571424365948033935360852512320955328534952523104273442664561028366861818993570709540076707366947282582804267832872675481440691018758411582306676833568092042382621025018148818429694353720327284032587880903622752561862208032746377687986043069941091074043617202492442986713160295068602438238520595977793556518627940579451195731722670672638111279264337675176228555772351966843614094538174552743667696267301293517875368930241227656421402479875549437198699819474255373556994512760470103508333368236519301641361997758608276775145227100796441530126369384207488771580411974992443933492310889651782466360373959399047983504936534599239057925067679764875291958810235100333051
 . . . . . . . . . . . . . . . . . . . . [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)
							fbb881cd02d252cfbc73cb30f59c0a35bdae0c8e
 . . . . . . . . . . . . . . . . [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 (30 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'csa.edu.ph'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.csa.edu.ph'
 . . . . . . . . . . . . . . . . [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 1.3.6.1.4.1.11129.2.4.2
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (244 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (241 bytes)
							00ef0075003b5377753e2db9804e8b305b06fe403b67d84fc3f4c7bd000d2d726fe1fad4170000018afffbc6810000040300463044022027ad4590e8028a67e76921cb94825b4ee991d2f65d0c3ccecda1bc1e22c117e8022021eebb28d6397d99e572c0c9ba4b2796cacc778802db9d805ee5a8ed8abbc7ed00760076ff883f0ab6fb9551c261ccf587ba34b4a4cdbb29dc68420a9fe6674c5a3a740000018afffbc6c100000403004730450220743da3d261ac81d9078179506045ac95b8569889247e0e72306c529d9b8c810e022100f247ef98d38a1adbfdc0374cc1b05bea684e77f9d6d4b676661bc319f5306104
 . . . . [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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