www.reactabiotech.co.uk

Issued by R3

About this certificate

This digital certificate with serial number 04:0e:05:61:1e:c6:59:28:7f:86:56:4d:68:aa:d5:12:e0:38 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=www.reactabiotech.co.uk

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 04:0e:05:61:1e:c6:59:28:7f:86:56:4d:68:aa:d5:12:e0:38
Serial Number (int): 353220247280895384945127290637908893163576
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: 28:a4:5b:ca:48:78:b3:0c:9e:45:4e:83:c9:74:ea:4f:2a:2d:27:d7
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 47:5a:1d:a4:84:22:58:d2:c5:98:22:04:90:30:48:d8:98:11:f3:7f
Fingerprint (sha256): 0f:3e:ec:f3:fb:c1:d7:d6:d2:8d:b8:30:d7:89:43:06:37:a5:c3:3f:e5:e9:eb:ff:1a:4b:b6:81:b2:0a:fd:78

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

Revocation information

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

Check the revocation status for certificate www.reactabiotech.co.uk

2

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for www.reactabiotech.co.uk

Public Key Algorithm

RSA

Key Size

2048

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

reactabiotech.co.uk
www.reactabiotech.co.uk

Other certificates including the domain name reactabiotech.co.uk

(limited to 100 certificates)
www.reactabiotech.co.uk
reactabiotech.co.uk
reactabiotech.co.uk
reactabiotech.co.uk
reactabiotech.co.uk
reactabiotech.co.uk
reactabiotech.co.uk
reactabiotech.co.uk
reactabiotech.co.uk
reactabiotech.co.uk
reactabiotech.co.uk
reactabiotech.co.uk
live-reactabiotech.kissdigital.co.uk
reactabiotech.co.uk
reactabiotech.co.uk
reactabiotech.co.uk
reactabiotech.co.uk
reactabiotech.co.uk
www.reactabiotech.co.uk
reactabiotech.co.uk
reactabiotech.co.uk
reactabiotech.co.uk
reactabiotech.co.uk
reactabiotech.co.uk

Certificate

The complete raw certificate details for www.reactabiotech.co.uk in PEM and ASN.1 format.

Certificate (PEM)

-----BEGIN CERTIFICATE-----
MIIFEDCCA/igAwIBAgISBA4FYR7GWSh/hlZNaKrVEuA4MA0GCSqGSIb3DQEBCwUA
MDIxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MQswCQYDVQQD
EwJSMzAeFw0yNDAzMTQwMTU2NDFaFw0yNDA2MTIwMTU2NDBaMCIxIDAeBgNVBAMT
F3d3dy5yZWFjdGFiaW90ZWNoLmNvLnVrMIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8A
MIIBCgKCAQEA9rwlEfYkNSsXl8HxVJ0kbApArWdiTQFhiKz8nAim61i37sl8KPFD
QKjUg1JJN/A/NnhOj6AJ/723E864FeO3ZG3fCAvyIidP9t8cOpJLJTlAkACyta2g
VmDtX3c5M8/XWDOvuwF6HGHv+8fCEnNPBdqEAMNdIvtU143nK4a7C4ZY+8w55FHH
nN6aeZy7Zp/uBctRRE+3QyAPFQGyHqzKPaymzwWyGP3y+ktQxzcNXH4Cb1N2mmtn
K2lQm2UgJVyHHro132E3Y9+BGh7366v1so2cxwgyiixd82MxQkJ6955EB0UgBnHP
KiE6B1yCUUsC0l75g0jCXx5ljahQr0ew7QIDAQABo4ICLjCCAiowDgYDVR0PAQH/
BAQDAgWgMB0GA1UdJQQWMBQGCCsGAQUFBwMBBggrBgEFBQcDAjAMBgNVHRMBAf8E
AjAAMB0GA1UdDgQWBBQopFvKSHizDJ5FToPJdOpPKi0n1zAfBgNVHSMEGDAWgBQU
LrMXt1hWy65QCUDmH6+dixTCxjBVBggrBgEFBQcBAQRJMEcwIQYIKwYBBQUHMAGG
FWh0dHA6Ly9yMy5vLmxlbmNyLm9yZzAiBggrBgEFBQcwAoYWaHR0cDovL3IzLmku
bGVuY3Iub3JnLzA3BgNVHREEMDAughNyZWFjdGFiaW90ZWNoLmNvLnVrghd3d3cu
cmVhY3RhYmlvdGVjaC5jby51azATBgNVHSAEDDAKMAgGBmeBDAECATCCAQQGCisG
AQQB1nkCBAIEgfUEgfIA8AB1AEiw42vapkc0D+VqAvqdMOscUgHLVt0sgdm7v6s5
2IRzAAABjjrj9HoAAAQDAEYwRAIgLXx5+GKiEea3uAP07OY3rxKxzeMhSQ4zBrSN
cWwxO5oCIEjvPE+6AEaFKgLrZM0KIfkMDJZ+mmRUAY19OgTizr5CAHcA7s3QZNXb
Gs7FXLedtM0TojKHRny87N7DUUhZRnEftZsAAAGOOuP0fgAABAMASDBGAiEAzql1
nPxAmh1xsLJnN8JQDXunlNdr5syMyLMpfDy1Io8CIQDjLj3f6LXJnNVf8JL8F6XM
hXVBpil66oodIs/enVR2HzANBgkqhkiG9w0BAQsFAAOCAQEAsDsZc6bnSJ02rO1F
ZgLLoXsLxLsQ1rLvN5Q9/IAh7pYfGTTM7pjNeIO7YwE1mO7uz++eWMu9u/YZPbld
ruRaOfVZOCCRaDc88YhlzzViiSL/U/CnHoPajlDr1xbmGtTsANC2jam4oXLSig4m
0lW0UXDbwwEfGuQ6El+JaE+/5S1ejJOBwj9dEV7c+5W03RsO44OVkIYAVfFsmze3
Q71/OKA+ZNCJB+RDu2X82+JiWneNliheyIG4VfZV366fxniFnQxcsvdAY7p/Lc7l
FT7dnxEZyrcN7/JJ//T+qU0EHOYW9G9vCvO1LUDOcEkHyj6hNIndi62kXlp68umJ
1TMCew==
-----END CERTIFICATE-----

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA9rwlEfYkNSsXl8HxVJ0k
bApArWdiTQFhiKz8nAim61i37sl8KPFDQKjUg1JJN/A/NnhOj6AJ/723E864FeO3
ZG3fCAvyIidP9t8cOpJLJTlAkACyta2gVmDtX3c5M8/XWDOvuwF6HGHv+8fCEnNP
BdqEAMNdIvtU143nK4a7C4ZY+8w55FHHnN6aeZy7Zp/uBctRRE+3QyAPFQGyHqzK
PaymzwWyGP3y+ktQxzcNXH4Cb1N2mmtnK2lQm2UgJVyHHro132E3Y9+BGh7366v1
so2cxwgyiixd82MxQkJ6955EB0UgBnHPKiE6B1yCUUsC0l75g0jCXx5ljahQr0ew
7QIDAQAB
-----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 353220247280895384945127290637908893163576
 . . . . . . . . [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 2024-03-14 01:56:41 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-06-12 01:56:40 +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 'www.reactabiotech.co.uk'
 . . . . . . . . [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 (2160 bits)
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 31147400683024796010032396699911782464791131963935107377158017374054551150227488938726481644848670435763267941001550009494984734759752713478657819732013072034255656844380712963812557722658477014199036285190364628511247532022993331743875147698096216855923559997585501819001852815525618215776055187719763463887271929461096216442655942261989731206327294660631979337421263157866757968626547182781996603831826735897491252447294332164604130447829586903114310860476489126582908317254182387963890758327700502885361197688942255954876800953223182766166658257322986706820319564030524701367869688677116069520220555550445709799661
 . . . . . . . . . . . . . . . . . . . . [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)
							28a45bca4878b30c9e454e83c974ea4f2a2d27d7
 . . . . . . . . . . . . . . . . [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 (48 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'reactabiotech.co.uk'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.reactabiotech.co.uk'
 . . . . . . . . . . . . . . . . [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)
							00f000750048b0e36bdaa647340fe56a02fa9d30eb1c5201cb56dd2c81d9bbbfab39d884730000018e3ae3f47a000004030046304402202d7c79f862a211e6b7b803f4ece637af12b1cde321490e3306b48d716c313b9a022048ef3c4fba0046852a02eb64cd0a21f90c0c967e9a6454018d7d3a04e2cebe42007700eecdd064d5db1acec55cb79db4cd13a23287467cbcecdec351485946711fb59b0000018e3ae3f47e0000040300483046022100cea9759cfc409a1d71b0b26737c2500d7ba794d76be6cc8cc8b3297c3cb5228f022100e32e3ddfe8b5c99cd55ff092fc17a5cc857541a6297aea8a1d22cfde9d54761f
 . . . . [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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