delta.edu

Issued by E1

About this certificate

This digital certificate with serial number 04:ef:0a:23:1f:26:75:9e:83:3e:b1:88:37:f9:a1:b2:33:c8 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=delta.edu

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 04:ef:0a:23:1f:26:75:9e:83:3e:b1:88:37:f9:a1:b2:33:c8
Serial Number (int): 429790104063294946496897090204447800439752
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: f7:a7:68:2a:3d:c1:7b:a4:2f:ec:1d:0f:8c:94:27:23:7e:01:4d:03
AuthorityKeyId: 5a:f3:ed:2b:fc:36:c2:37:79:b9:52:30:ea:54:6f:cf:55:cb:2e:ac

Fingerprint (sha1): a7:e8:23:38:bf:c3:31:9c:11:0d:73:1a:3f:73:02:55:8e:e5:20:c1
Fingerprint (sha256): 71:90:ce:ec:40:05:7d:80:3e:e5:31:eb:d6:c1:fd:56:2e:90:8d:26:f7:c7:eb:fd:b2:20:78:eb:c5:9b:94:1c

Issuing Certificate URL: http://e1.i.lencr.org/

Revocation information

OCSP Server: http://e1.o.lencr.org

Check the revocation status for certificate delta.edu

2

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for delta.edu

Public Key Algorithm

ECDSA

Key Size

256

Signature Algorithm

ECDSA with SHA384

Key Usage

Digital Signature

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

*.delta.edu
delta.edu

Other certificates including the domain name delta.edu

(limited to 100 certificates)
*.delta.edu
*.delta.edu
*.delta.edu
*.delta.edu
*.delta.edu
*.delta.edu
*.delta.edu
*.delta.edu
donate.delta.edu
*.delta.edu
*.delta.edu
*.delta.edu
*.delta.edu
*.delta.edu
*.delta.edu
www.bookstore.delta.edu
*.delta.edu
ssl510753.cloudflaressl.com
*.ezproxy.delta.edu
*.delta.edu
www.bookstore.delta.edu
*.delta.edu
*.delta.edu
*.delta.edu
ssl510753.cloudflaressl.com
*.delta.edu
*.delta.edu
donate.delta.edu
*.delta.edu
*.delta.edu
*.delta.edu
ssl510752.cloudflaressl.com
*.delta.edu
*.delta.edu
*.delta.edu
*.delta.edu
www.bookstore.delta.edu
libanswers.delta.edu
delta.edu
*.delta.edu
www.bookstore.delta.edu
*.delta.edu
www.bookstore.delta.edu
*.delta.edu
*.delta.edu
*.delta.edu
*.delta.edu
www.bookstore.delta.edu
www.bookstore.delta.edu
delta.edu
www.bookstore.delta.edu
www.bookstore.delta.edu
go.delta.edu
*.delta.edu
*.delta.edu
library.delta.edu
*.delta.edu
www.bookstore.delta.edu
www.bookstore.delta.edu
*.delta.edu
serviceinterruption.delta.edu
*.delta.edu
*.delta.edu
*.delta.edu
*.ezproxy.delta.edu
*.delta.edu
delta.edu
library.delta.edu
*.delta.edu
donate.delta.edu
donate.delta.edu
*.delta.edu
www.bookstore.delta.edu
donate.delta.edu
www.bookstore.delta.edu
www.bookstore.delta.edu
sni.cloudflaressl.com
*.delta.edu
www.bookstore.delta.edu
*.delta.edu
*.delta.edu
*.delta.edu
ise01.delta.edu
*.delta.edu
*.delta.edu
donate.delta.edu
*.delta.edu
*.delta.edu
www.bookstore.delta.edu
*.delta.edu
*.delta.edu
*.delta.edu
delta.edu
www.bookstore.delta.edu
serviceinterruption.delta.edu
*.delta.edu
*.delta.edu
*.delta.edu
ise01.delta.edu
*.delta.edu

Certificate

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

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MFkwEwYHKoZIzj0CAQYIKoZIzj0DAQcDQgAERwWrVqUiKHwLb6hZ78GPfLs0jOnk
WivaQmVf+EuibzQXb3mX6E3HWAIccDG7xK1pmIFzI/LKlzkUTgUo7J+Gsw==
-----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 429790104063294946496897090204447800439752
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.10045.4.3.3 (ecdsaWithSHA384)
 . . . . . . . . [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 'E1'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-01-01 04:03:00 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-03-31 04:02:59 +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 'delta.edu'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.10045.2.1 (ecPublicKey)
 . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.10045.3.1.7 (prime256v1)
 . . . . . . . . . . . . [c:0|t:3|false] BIT STRING (520 bits)
				00044705ab56a522287c0b6fa859efc18f7cbb348ce9e45a2bda42655ff84ba26f34176f7997e84dc758021c7031bbc4ad6998817323f2ca9739144e0528ec9f86b3
 . . . . . . . . [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 (1 bits)
							0780
 . . . . . . . . . . . . . . . . [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)
							f7a7682a3dc17ba42fec1d0f8c9427237e014d03
 . . . . . . . . . . . . . . . . [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 5af3ed2bfc36c23779b95230ea546fcf55cb2eac
 . . . . . . . . . . . . . . . . [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://e1.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://e1.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 (26 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String '*.delta.edu'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'delta.edu'
 . . . . . . . . . . . . . . . . [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 (246 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (243 bytes)
							00f100760048b0e36bdaa647340fe56a02fa9d30eb1c5201cb56dd2c81d9bbbfab39d884730000018cc3675fb4000004030047304502207dcfa5387214b936473cab4b68d2f2855e2dc875cfb441525c17e5f432888159022100ce1c40c6ba00c1aacdb2db9afb17216acdae4ffed047f8053cff35ce677cb9950077003b5377753e2db9804e8b305b06fe403b67d84fc3f4c7bd000d2d726fe1fad4170000018cc3675faa0000040300483046022100fc226a42a921a7614840401ddd2023b51cc348dfa3b55e221496c9ff5dc28c30022100a05b37ea8364cac9eb2f3134431815ee761eea9e13a9191c3e7ac95ecbedc51d
 . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.10045.4.3.3 (ecdsaWithSHA384)
 . . . . [c:0|t:3|false] BIT STRING (824 bits)
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:2|false] INTEGER 36737280551579212480955728397324925690100794723406773480595050443952054711487571672417243691166815421025071208385352
 . . . . . . . . . . . . [c:0|t:2|false] INTEGER 14714189001837189796837807849780466310965515828997933095500138225860410235631398757765085111611280812804066879827652