fileshare.hovid.com

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:1e:ff:b5:40:4e:4c:0f:46:79:34:7e:c4:44:6b:78:3f:e1 was issued on by Let's Encrypt.

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=fileshare.hovid.com

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:1e:ff:b5:40:4e:4c:0f:46:79:34:7e:c4:44:6b:78:3f:e1
Serial Number (int): 271885223051842992832418905970668522192865
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: e8:0f:ad:46:44:6a:db:d9:aa:ee:b8:3b:b5:9f:a2:6e:79:b2:8e:8a
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 3f:97:36:5a:ba:0e:53:93:66:37:82:1b:05:3e:a7:2a:1f:6b:a2:e8
Fingerprint (sha256): 09:80:65:82:2c:e9:a7:c4:10:13:18:b1:eb:a0:0f:92:45:6b:7b:2c:02:76:91:9a:c9:09:64:f1:e1:76:58:4b

Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/

Revocation information

OCSP Server: http://ocsp.int-x3.letsencrypt.org

Check the revocation status for certificate fileshare.hovid.com

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for fileshare.hovid.com

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

fileshare.hovid.com

Other certificates including the domain name hovid.com

(limited to 100 certificates)
hoyanhor.com
hovidonlinestore.com
hovid.com
fileshare.hovid.com
helpdesk.melimu.com
tocovid.com
fileshare.hovid.com
hovidonlinestore.com
hoyanhor.com.my
hrms.hovid.com
hovid.com
hovidlifescience.com
hovidlifescience.com
hovid.com.my
hrms.hovid.com
hovid.com
tocovid.com.my
abiotide.com
wc.hovid.com
hovidlifescience.com
tocovid.com
fileshare.hovid.com
germisep.com
mbox.hovid.com
hovid.com
hovid.com
hovid.com
wc.hovid.com
hovid.com
hovidonlinestore.com
hovidlifescience.com
da.computool.com
hovid.com
hovid.com
da.computool.com
hovid.com
hovidsg.hovid.com
hoyanhor.com.my
germisep.com
tocovid.com
hoyanhor.com.hk
hoyanhor.com.my
hovidlifescience.com
tocovid.com
hovid.com
helpdesk.hovid.com
hovidsg.hovid.com
hoyanhor.com
hovid.com
hovid.com
hoyanhor.com.hk
abiotide.com
hoyanhor.com.hk
hovid.com
techsupport.rovadigital.co.ke
hrms.hovid.com
hovidlifescience.com
abiotide.com
hrms.hovid.com
fileshare.hovid.com
hoyanhor.com.my
mbox.hovid.com
tocovid.com.my
hovidlifescience.com
mbox.hovid.com
hovid.com
hoyanhor.com.hk
fileshare.hovid.com
da.computool.com
hovidonlinestore.com
abiotide.com
germisep.com
hovid.com
tocovid.com.my
tocovid.com
tocovid.com.my
hovid.com
wc.hovid.com
germisep.com
tocovid.com
hovidonlinestore.com
hovidlifescience.com
abiotide.com
tocovid.com.my
hovid.com
bepractice.hovid.com
hovidonlinestore.com
hovidlifescience.com
tocovid.com.my
hoyanhor.com.hk
fileshare.hovid.com
tocovid.com
hovid.com
tocovid.com.my
hoyanhor.com.my
germisep.com
helpdesk.hovid.com
germisep.com
hovidonlinestore.com
hrms.hovid.com

Certificate

The complete raw certificate details for fileshare.hovid.com in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA3vAMfJ7m79VFoDzcQaaY
PxsM7+RgKneRvi+eHSeTMMYK3K4o5zJRiiTVsHXHFR8JVUtktw6ph5WPR47sbZyt
Wefvukd/e1zZkwki18mumDkvssxwtBbdP4YY0fL9XDntgAsQofXjxTWiz/3cgNs+
IqTX/QZ6z/8gHT8Wsh9P+I6jT0Ft18W0GZOEwOMLYr88jVD5k/G6KFJfV+Nz/nrL
Nxmw6FknlW4McwjdPmAoXpNurVJ04M8fL3dZHMuf+z4NujPEWNlgkpGvKAHX3Yfh
eb8917YeAtcOepmh41rwZlpjEA6CB7HIeThWjtePc6O4PwOeOdlai0mHCrt0ja6U
3QIDAQAB
-----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 271885223051842992832418905970668522192865
 . . . . . . . . [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 'Let's Encrypt Authority X3'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-03-31 23:02:11 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-06-29 23:02:11 +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 'fileshare.hovid.com'
 . . . . . . . . [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 28143276165989448966335856205619172042988204799249203317532249810197836482560038487265282305533052120299354197584645939384259736881782737101955132310335404216031374667553712528724039237967889043090906904390309391111791776876600788240531540164540223745597745063675690115873653374206254729743956440210678916828590432381445249981838542764761411255811585497857045313274021093589472906955530595124126566427421991268260114842680171144157917473723928845331202280060664112576302106200659006116819138859652656797973175506234302017637323428798571969402380040256863297293100167914226153025580979781875927959983258258881507136733
 . . . . . . . . . . . . . . . . . . . . [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)
							e80fad46446adbd9aaeeb83bb59fa26e79b28e8a
 . . . . . . . . . . . . . . . . [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 a84a6a63047dddbae6d139b7a64565eff3a8eca1
 . . . . . . . . . . . . . . . . [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 (99 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://ocsp.int-x3.letsencrypt.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://cert.int-x3.letsencrypt.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 (23 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'fileshare.hovid.com'
 . . . . . . . . . . . . . . . . [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 (244 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (241 bytes)
							00ef007500b21e05cc8ba2cd8a204e8766f92bb98a2520676bdafa70e7b249532def8b905e00000171330b9e9f0000040300463044022070ebd8deb8d2baa09db065c11cb52dbe5e3d7dd65d831cac7ca84a95b8adcec50220382959081ca05596ee6590c0d9e932a0c1b76d7f84cbbf91afa11a56c3aab3cb0076006f5376ac31f03119d89900a45115ff77151c11d902c10029068db2089a37d91300000171330b9f65000004030047304502205f265b2f6ce213fb175478fad2ebfe7d3f72b6878a150262682a24ad17af6506022100af603a42c89ca63e6ce1d2ac48c4c773cd4ef246666409d671b1f3b50b11db8d
 . . . . [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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