delta.edu

Issued by E1

About this certificate

This digital certificate with serial number 04:06:08:6d:72:c2:f9:a1:63:90:ec:be:45:df:39:ee:e6:f5 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): 04:06:08:6d:72:c2:f9:a1:63:90:ec:be:45:df:39:ee:e6:f5
Serial Number (int): 350502040040532692209218440735819786282741
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: c6:e4:e8:fb:52:b5:59:64:23:1d:31:28:8a:bc:3b:ed:5f:dd:6d:dc
AuthorityKeyId: 5a:f3:ed:2b:fc:36:c2:37:79:b9:52:30:ea:54:6f:cf:55:cb:2e:ac

Fingerprint (sha1): 9f:6f:59:70:d4:a9:bc:ec:79:52:f6:9e:42:ff:e9:e2:cf:98:08:ff
Fingerprint (sha256): cf:c7:3a:97:b6:ed:6c:72:f9:cb:b1:9c:7f:3c:31:c4:23:57:f1:ea:45:db:0f:1b:e6:d1:66:43:87:bd:43:30

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-----
MFkwEwYHKoZIzj0CAQYIKoZIzj0DAQcDQgAE8H/wJdozLyxISgq4p0Gq579Tztth
Rr6iqnwtd1cdHduXCllMjlews5YxjGorZX+H0Kp+s3nvw29LYB4kfFWN8g==
-----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 350502040040532692209218440735819786282741
 . . . . . . . . [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 2023-11-03 00:11:32 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-02-01 00:11:31 +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)
				0004f07ff025da332f2c484a0ab8a741aae7bf53cedb6146bea2aa7c2d77571d1ddb970a594c8e57b0b396318c6a2b657f87d0aa7eb379efc36f4b601e247c558df2
 . . . . . . . . [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)
							c6e4e8fb52b55964231d31288abc3bed5fdd6ddc
 . . . . . . . . . . . . . . . . [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 (245 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (242 bytes)
							00f00075003b5377753e2db9804e8b305b06fe403b67d84fc3f4c7bd000d2d726fe1fad4170000018b92bc4088000004030046304402207355e5554163918ce6c74d77098b00edbc050c540e3cb8cb39536d667062886802206f5a0316f2208632b657ccf327f0d038e6774e1e12f1965062cc887ce8aa7986007700eecdd064d5db1acec55cb79db4cd13a23287467cbcecdec351485946711fb59b0000018b92bc42e40000040300483046022100f531ede59f72c9774aba702c8b2f08b8be40ead5bb6fcc7fab153ee33cef1306022100e12a46563c7c3d59bef4c254f889abe3cd09236c0bcd685ec822020544be5d6f
 . . . . [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 448023469957690821102798817310956832575715239673408654602114639983539602095395182969726284788851306922310418982489
 . . . . . . . . . . . . [c:0|t:2|false] INTEGER 34277277894807736926586306878150194299048490417304004574286695092469941194601943694774544203763425220376706829694388