www.iconhq.com

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:83:92:db:bb:08:0f:25:e7:d0:ae:cc:64:30:ac:3b:06:77 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=www.iconhq.com

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:83:92:db:bb:08:0f:25:e7:d0:ae:cc:64:30:ac:3b:06:77
Serial Number (int): 306109056055769404781363681849489019831927
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: cd:5d:a7:90:c5:e6:79:d3:75:55:3e:c3:76:57:c7:88:88:10:b8:dc
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 0c:49:16:f9:be:c1:a2:da:12:17:82:15:e4:72:cf:42:00:00:83:3b
Fingerprint (sha256): 7a:ff:b7:50:b3:f9:2c:31:1b:82:45:ad:e7:33:80:20:37:e3:b6:c8:d6:5f:5b:e2:88:8e:ff:e7:0d:86:c7:17

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 www.iconhq.com

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for www.iconhq.com

Public Key Algorithm

RSA

Key Size

4096

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

www.iconhq.com

Other certificates including the domain name iconhq.com

(limited to 100 certificates)
iconhq.com
www.iconhq.com
fountainhillslistings.com
iconhq.com
www.iconhq.com
www.iconhq.com

Certificate

The complete raw certificate details for www.iconhq.com in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEAm3K+C02VnGG9usHSAiBi
1qQaubnNrf1V2iYsRlrpHaAz1fEYMx52vBlIQDOd1ttRrMn9SgZD6ZRbfNotcZsy
uMm38xUK7tWzmlWaxGOfdL4IAjMd1gxbvQ1l1CTbsDLDJYN+jMDBwTSlcEw4cKnh
+foepW5BBR0tDZujF/WbS6RPU253NvFrxgStqnH/iD0VCvE/KKJl+Aj9J/Mk/d4H
gpt0yRNCapP7eTQ4MoIXHKNaoBcje9fDSL4lNmR1dNKn7gzoYVWMYPi1g+xOl/fs
BYUSFXJ/GBU0Vw6u2c3WC/zogQ4OX8xiW33HdBDroOQ3Bo6N6dVZShFQLiwsTOR/
RpZnMfk9JJMkNnBTMnyxFc2LIG5Te0hhRn313fjkEmNCw3dRxIDXEPqpbAlU+xQF
aVPdqSlrR7wMBz1Ni+i87hnWOojy8UOdBxJyY42DoR8fsPh0Q5PKY8V4YhLY7aWa
vCrXN1EoLFB7qwvJJntMIax0eTRrw0tQvljjxc3vudyAtemPW1QHhXN4H58cVssx
xe3Wmh8DNRvqmGKIsHdbRqS1xyQdjgRbufkiP0mRgZk5uV9QjRjWmFOZDjoyKIgl
8g3Ime8Zh3WZTp0FOXuZuwmozCW5pKdDwWUPTmDxTDGNF0GU37KxurClSAWOJ17Q
MVhDxKKNITmLNXaFdzK8fw8CAwEAAQ==
-----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 306109056055769404781363681849489019831927
 . . . . . . . . [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 2020-01-16 06:32:21 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-04-15 06:32:21 +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.iconhq.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 (4208 bits)
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 634173377372051756857189059545855601552482726344536347761106860273636827787075511215671261293818120651718779661642522923744691830111272964803929311002274334424693580589714251368353311646411103311190823679446754299555714044812236276057438080280339847945459627272782234050560296705744677700498506775735209741478755950786961899231310371300444918455901136169612079185009839166536755595168102690623944906239282434433379810893768930893138215090838986030566821564892711545948094986970794013061204317241132448675281981641823372953447981030328423373158337474105321706856646705801468099026415745608290901578753327684733912087091149828718892344040856033098564584302614372111238538491523280791895387636292373201058789641632563070162693740518411585167063639166484405474507436429349413933382681576536506978585278484773903916112977493637838131161076317606009113591631402731296789339570142874575629596986722300288588984009416489997074210370245573965364096839179735549042237886661985428888933582030817506311045522013332909622232314576961243828710416244009114113803909481718305401999092038352337430288641734006301245230262696363179366476669294915992277432290119555294541016073068018402600074102780836922050131627611575859819557269882722012492201754383
 . . . . . . . . . . . . . . . . . . . . [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)
							cd5da790c5e679d375553ec37657c7888810b8dc
 . . . . . . . . . . . . . . . . [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 (18 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.iconhq.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 (245 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (242 bytes)
							00f00077005ea773f9df56c0e7b536487dd049e0327a919a0c84a1121284187596817145580000016fad4471710000040300483046022100f12d41a46ff28ef0349cc468517ced6eb4c779259009e6c4ab095050b524a79f02210089e7b480fdf130d299f4ea4b4018a76eb73160bee387b346f098e8cf598c583d007500b21e05cc8ba2cd8a204e8766f92bb98a2520676bdafa70e7b249532def8b905e0000016fad4471610000040300463044022024466f07667accc4bfe5e52efd42370b749bbe019beacef1bcd79853be0c227402201ad09e2bcb7d99d371303b0ec6c95acaa31c65a14c0d74d4ecf05c5a06760d3b
 . . . . [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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