atu.ie

Issued by R3

About this certificate

This digital certificate with serial number 03:1f:72:ce:cd:46:70:95:84:e8:a7:8f:79:25:5c:55:de:47 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:
  • Subscriber Certificate: commonName is deprecated. (BRs: 7.1.4.2.2)

Certificate Subject

CN=atu.ie

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:1f:72:ce:cd:46:70:95:84:e8:a7:8f:79:25:5c:55:de:47
Serial Number (int): 272038216937976954094520970759498534084167
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 97:c3:7b:76:3a:93:a2:2b:9a:3e:35:08:7f:5a:ff:9c:25:e5:8b:0b
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 1d:b8:b7:95:fb:97:ee:0a:ba:0b:15:ff:b4:4f:52:3a:19:0c:d5:08
Fingerprint (sha256): 49:f5:54:77:04:9c:95:92:dd:b9:1e:a9:cf:5a:a5:f7:49:3c:95:da:42:00:99:d2:5c:2c:66:a9:55:4d:8a:b3

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

Revocation information

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

Check the revocation status for certificate atu.ie

2

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for atu.ie

Public Key Algorithm

ECDSA

Key Size

256

Signature Algorithm

SHA256 with RSA

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

atu.ie
www.atu.ie

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it.rmk.ee
it.rmk.ee
itsupport.gnt-group.com
systems.squaredup.com
customerportal.uk.rlb.com
studenthub.atu.ie
support.homeinstead.ie
servicedesk.christs.cam.ac.uk
helpdesk.atu.ie
customerportal.uk.rlb.com
support.brill.com
customerportal.uk.rlb.com
soporte.martinezabolafio.com
servicedesk.christs.cam.ac.uk
atu.ie
helpdesk.atu.ie
customerportal.uk.rlb.com
support.homeinstead.ie
servicedesk.christs.cam.ac.uk
service.littlegarth.org
support.homeinstead.ie
customerportal.uk.rlb.com
customerportal.uk.rlb.com
support.brill.com
customerportal.uk.rlb.com
servicedesk.synergyretailsupport.co.uk
atu.ie
itdesk.ininingroup.com
servicedesk.christs.cam.ac.uk
customerportal.uk.rlb.com
helpdesk.atu.ie
hub.theriderfirm.cc
studenthub.atu.ie
studenthub.atu.ie
customerportal.uk.rlb.com
servicedesk.am-labor.de
servicedesk.synergyretailsupport.co.uk
servicedesk.esmsglobal.com
soporte.martinezabolafio.com
itsupport.hvdgroup.com
systems.squaredup.com
hub.theriderfirm.cc
helpdesk.sales-i.com
itsupport.hvdgroup.com
support.homeinstead.ie
systems.squaredup.com
customerportal.uk.rlb.com
itdesk.ininingroup.com
servicedesk.coram.eu
it.rmk.ee
servicedesk.tpos.co.uk
itsupport.hvdgroup.com
customerportal.uk.rlb.com
customerportal.uk.rlb.com
servicedesk.coram.eu
support.homeinstead.ie
customerportal.uk.rlb.com
support.homeinstead.ie
customerportal.uk.rlb.com
support.homeinstead.ie
itdesk.ininingroup.com
servicedesk.coram.eu
soporte.martinezabolafio.com
servicedesk.synergyretailsupport.co.uk
customerportal.uk.rlb.com
servicedesk.esmsglobal.com
atu.ie
helpdesk.atu.ie
helpdesk.sales-i.com
customerportal.uk.rlb.com
support.homeinstead.ie
vlegalwaymayo.atu.ie
itsupport.hvdgroup.com
atu.ie
soporte.klz.rf.gd
customerportal.uk.rlb.com
servicedesk.relyonnutec.com
support.homeinstead.ie
atu.ie
servicedesk.relyonnutec.com
itsupport.gnt-group.com

Certificate

The complete raw certificate details for atu.ie in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MFkwEwYHKoZIzj0CAQYIKoZIzj0DAQcDQgAEufDF4bZBQy63UJDT4vxlIZLl+Pnw
uArEcc8tVsxqW/l/UhJ8Ix10e/WvjS+QfPfPEC/HoJK6mXR5L3x6147wIg==
-----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 272038216937976954094520970759498534084167
 . . . . . . . . [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 2023-06-08 03:38:38 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2023-09-06 03:38:37 +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 'atu.ie'
 . . . . . . . . [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)
				0004b9f0c5e1b641432eb75090d3e2fc652192e5f8f9f0b80ac471cf2d56cc6a5bf97f52127c231d747bf5af8d2f907cf7cf102fc7a092ba9974792f7c7ad78ef022
 . . . . . . . . [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)
							97c37b763a93a22b9a3e35087f5aff9c25e58b0b
 . . . . . . . . . . . . . . . . [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 (22 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'atu.ie'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.atu.ie'
 . . . . . . . . . . . . . . . . [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 (246 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (243 bytes)
							00f10077007a328c54d8b72db620ea38e0521ee98416703213854d3bd22bc13a57a352eb5200000188994caa010000040300483046022100a7b0efef6b38d0ff6361a2ae3fe6cc0fe73f504646ccc2e6d40e6393fc72ed02022100df84700c2f38abdf7ac9fdc84f011a7c9eb0d00da02a2f749e1d9bb1c37e0a12007600adf7befa7cff10c88b9d3d9c1e3e186ab467295dcfb10c24ca858634ebdc828a00000188994caaae000004030047304502207256fb51ec53de7130c925ca0609e8ba4eefe227b9769a302392fbca8aa110cb022100aee4ca3264054a78f9b74d46de39159d7ba5de03d5ef73453b131bf991b9a145
 . . . . [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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