atu.ie

Issued by R3

About this certificate

This digital certificate with serial number 04:20:16:de:3e:52:a7:58:12:f4:c9:b5:28:24:dc:2d:6f:a9 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): 04:20:16:de:3e:52:a7:58:12:f4:c9:b5:28:24:dc:2d:6f:a9
Serial Number (int): 359368576438378775522464672467853012463529
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: 7c:09:7c:c6:0a:f6:ed:4f:22:f5:48:12:21:b0:07:23:ee:48:6a:0b
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 77:47:11:6d:cd:1f:16:7c:c7:9b:31:a2:0f:d5:6c:45:de:aa:12:7e
Fingerprint (sha256): cb:96:d8:fb:2b:5e:20:26:6a:0f:e6:b7:41:58:ff:8e:6d:e3:42:96:3b:60:73:57:8b:d2:85:2a:c4:7b:15:55

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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customerportal.uk.rlb.com
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vlesligo.atu.ie
servicedesk.am-labor.de
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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-----
MFkwEwYHKoZIzj0CAQYIKoZIzj0DAQcDQgAEc2XELqCwr3vQ15GBz3R1HwXPXIeC
UfFI1GxJwVdgnh06OxMomUqH+r0vhir4egRorJjOJ41Ecjuwxsp3rRtrVg==
-----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 359368576438378775522464672467853012463529
 . . . . . . . . [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 2023-02-04 05:36:50 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2023-05-05 05:36:49 +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)
				00047365c42ea0b0af7bd0d79181cf74751f05cf5c878251f148d46c49c157609e1d3a3b1328994a87fabd2f862af87a0468ac98ce278d44723bb0c6ca77ad1b6b56
 . . . . . . . . [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)
							7c097cc60af6ed4f22f5481221b00723ee486a0b
 . . . . . . . . . . . . . . . . [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 (245 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (242 bytes)
							00f00077007a328c54d8b72db620ea38e0521ee98416703213854d3bd22bc13a57a352eb52000001861b2452a40000040300483046022100b97b3cbfe87261f39f56f293b33a6579b76dcdd2025aac82d18e6c09fad8bea2022100d3e8539c5f418f933cf1e34a95eaf7505237495bd065df3ebb2a8aa304fa00c4007500adf7befa7cff10c88b9d3d9c1e3e186ab467295dcfb10c24ca858634ebdc828a000001861b2452c4000004030046304402204a971f99475227f834993d1597d87a24cce4e788c3a7876f2ab3b017deefa9ee022013bb280417401ed6aa9c02a9b9b6e58ed35b400061abbf4d4020eb1332a094f2
 . . . . [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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