Check DNS, Urls + Redirects, Certificates and Content of your Website


Info: Problems with 3.048.289 Letsencrypt certificates (378.325 accounts). They must be revoked (revocation starts 2020-03-04 20:00 UTC) - see Revoking certain certificates on March 4. Update 2020-03-07: Good news: Mass-revocation is canceled.

This tool: A check (SerialNumber) is added. Letsencrypt has published a list of critical SerialNumbers, this list is checked. See the part "9. Certificates". If there is a warning, renew that certificate and replace the current certificate.




V

Connect failure - perhaps firewall

Checked:
14.02.2020 09:22:44


Older results

No older results found


1. IP-Addresses

HostTIP-Addressis auth.∑ Queries∑ Timeout
khhssandbox.ml
A

yes
1
0

AAAA

yes


www.khhssandbox.ml
A
3.226.230.71
Ashburn/Virginia/United States (US) - Amazon Technologies Inc.
Hostname: ec2-3-226-230-71.compute-1.amazonaws.com
yes
1
0

AAAA

yes



2. DNSSEC

Zone (*)DNSSEC - Informations (beta)

Zone: (root)
(root)
1 DS RR published



Status: Valid because published



2 DNSKEY RR found



Public Key with Algorithm 8, KeyTag 20326, Flags 257 (SEP = Secure Entry Point)



Public Key with Algorithm 8, KeyTag 33853, Flags 256



1 RRSIG RR to validate DNSKEY RR found



Algorithm: 8, 0 Labels, original TTL: 172800 sec, Signature-expiration: 02.03.2020, 00:00:00, Signature-Inception: 10.02.2020, 00:00:00, KeyTag 20326, Signer-Name: (root)



Status: Good - Algorithmus 8 and DNSKEY with KeyTag 20326 used to validate the DNSKEY RRSet



Status: Valid Chain of trust. Parent-DS with Algorithm 8, KeyTag 20326, DigestType 2 and Digest "4G1EuAuPHTmpXAsNfGXQhFjogECbvGg0VxBCN8f47I0=" validates local Key with the same values, Key ist Secure Entry Point (SEP) of the zone

Zone: ml
ml
0 DS RR in the parent zone found



DS-Query in the parent zone has a valid NSEC RR as result with the domain name between the NSEC-Owner "ml" and the NextOwner "mlb". So the parent zone confirmes the non-existence of a DS RR. Bitmap: NS, RRSIG, NSEC



0 DNSKEY RR found





Zone: khhssandbox.ml
khhssandbox.ml
0 DS RR in the parent zone found



0 DNSKEY RR found





Zone: www.khhssandbox.ml
www.khhssandbox.ml
0 DS RR in the parent zone found


3. Name Servers

DomainNameserverNS-IP
www.khhssandbox.ml
  ns01.freenom.com

khhssandbox.ml
  ns01.freenom.com
54.171.131.39
Dublin/Leinster/Ireland (IE) - Amazon.com, Inc.


  ns02.freenom.com
52.19.156.76
Dublin/Leinster/Ireland (IE) - Amazon.com, Inc.


  ns03.freenom.com
104.155.27.112
Ashburn/Virginia/United States (US) - Google LLC


  ns04.freenom.com
104.155.29.241
Newark/New Jersey/United States (US) - Google LLC

ml
  a.ns.ml / AMS


  b.ns.ml / sin


  c.ns.ml / ams


  d.ns.ml / sin


4. SOA-Entries


Domain:ml
Primary:a.ns.ml
Mail:info.malidili.com
Serial:1581668428
Refresh:10800
Retry:3600
Expire:604800
TTL:5
num Entries:1


Domain:ml
Primary:a.ns.ml
Mail:info.malidili.com
Serial:1581668428
Refresh:10800
Retry:3600
Expire:604800
TTL:5
num Entries:1


Domain:ml
Primary:a.ns.ml
Mail:info.malidili.com
Serial:1581668494
Refresh:10800
Retry:3600
Expire:604800
TTL:5
num Entries:1


Domain:ml
Primary:a.ns.ml
Mail:info.malidili.com
Serial:1581668494
Refresh:10800
Retry:3600
Expire:604800
TTL:5
num Entries:1


Domain:ml
Primary:a.ns.ml
Mail:info.malidili.com
Serial:1581668558
Refresh:10800
Retry:3600
Expire:604800
TTL:5
num Entries:2


Domain:ml
Primary:a.ns.ml
Mail:info.malidili.com
Serial:1581668558
Refresh:10800
Retry:3600
Expire:604800
TTL:5
num Entries:2


Domain:khhssandbox.ml
Primary:ns01.freenom.com
Mail:soa.freenom.com
Serial:1581665287
Refresh:10800
Retry:3600
Expire:604800
TTL:3600
num Entries:4


Domain:www.khhssandbox.ml
Primary:ns01.freenom.com
Mail:soa.freenom.com
Serial:1581665287
Refresh:10800
Retry:3600
Expire:604800
TTL:3600
num Entries:1


5. Screenshots (Beta)

No Screenshot listed, because no url-check with https + http status 200-299, 400-599 + not-ACME-check found.

6. Url-Checks


:

:
Domainname Http-StatusredirectSec.G
• http://www.khhssandbox.ml/
3.226.230.71
200

Html is minified: 116.67 %
0.234
H
Server: nginx/1.14.0 (Ubuntu)
Date: Fri, 14 Feb 2020 08:23:53 GMT
Content-Type: text/html
Content-Length: 14
Last-Modified: Fri, 14 Feb 2020 08:02:31 GMT
Connection: close
ETag: "5e465417-e"
Accept-Ranges: bytes

• https://www.khhssandbox.ml/
3.226.230.71
-2

1.360
V
ConnectFailure - Unable to connect to the remote server

• http://www.khhssandbox.ml/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
3.226.230.71 GZip used - 141 / 178 - 20.79 %
Inline-JavaScript (∑/total): 0/0 Inline-CSS (∑/total): 0/0
404

Html is minified: 108.54 %
0.236
A
Not Found
Visible Content: 404 Not Found nginx/1.14.0 (Ubuntu)
Server: nginx/1.14.0 (Ubuntu)
Date: Fri, 14 Feb 2020 08:23:54 GMT
Content-Type: text/html
Transfer-Encoding: chunked
Connection: close
Content-Encoding: gzip

7. Comments

Aname "khhssandbox.ml" is domain, public suffix is "ml", top-level-domain-type is "country-code", Country is Mali, tld-manager is "Agence des Technologies de l’Information et de la Communication"
Agood: All ip addresses are public addresses
Agood: No asked Authoritative Name Server had a timeout
Agood - only one version with Http-Status 200
HSTS-Preload-Status: unknown. Domain never included in the Preload-list. Check https://hstspreload.org/ to learn some basics about the Google-Preload-List.
AGood: Some urls with http status 200/404 have a complete Content-Type header (MediaType / MediaSubType + correct charset):0 complete Content-Type - header (2 urls)
http://www.khhssandbox.ml/ 3.226.230.71


Url with incomplete Content-Type - header - missing charset
http://www.khhssandbox.ml/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de 3.226.230.71


Url with incomplete Content-Type - header - missing charset
Hfatal error: No https - result with http-status 200, no encryption
HFatal error: http result with http-status 200, no encryption. Add a redirect http ⇒ https, so every connection is secure. Perhaps in your port 80 vHost something like "RewriteEngine on" + "RewriteRule ^ https://%{SERVER_NAME}%{REQUEST_URI} [END,QSA,R=permanent]" (two rows, without the "). Don't add this in your port 443 vHost, that would create a loop.
Vhttps://www.khhssandbox.ml/ 3.226.230.71
-2

connect failure - perhaps firewall
AGood: Nameserver supports TCP connections: 4 good Nameserver
AGood: Nameserver supports Echo Capitalization: 4 good Nameserver
XFatal error: Nameserver doesn't support EDNS with max. 512 Byte Udp payload or sends more then 512 Bytes: ns01.freenom.com
XFatal error: Nameserver doesn't support EDNS with max. 512 Byte Udp payload or sends more then 512 Bytes: ns02.freenom.com
XFatal error: Nameserver doesn't support EDNS with max. 512 Byte Udp payload or sends more then 512 Bytes: ns03.freenom.com
XFatal error: Nameserver doesn't support EDNS with max. 512 Byte Udp payload or sends more then 512 Bytes: ns04.freenom.com
Nameserver doesn't pass all EDNS-Checks: b.ns.ml: OP100: ok. FLAGS: ok. V1: fatal timeout. V1OP100: fatal timeout. V1FLAGS: fatal timeout. DNSSEC: ok. V1DNSSEC: fatal timeout. NSID: ok (sin). COOKIE: ok. CLIENTSUBNET: ok.
Nameserver doesn't pass all EDNS-Checks: c.ns.ml: OP100: ok. FLAGS: ok. V1: fatal timeout. V1OP100: fatal timeout. V1FLAGS: fatal timeout. DNSSEC: ok. V1DNSSEC: fatal timeout. NSID: ok (ams). COOKIE: ok. CLIENTSUBNET: ok.
Nameserver doesn't pass all EDNS-Checks: d.ns.ml: OP100: ok. FLAGS: ok. V1: fatal timeout. V1OP100: fatal timeout. V1FLAGS: fatal timeout. DNSSEC: ok. V1DNSSEC: fatal timeout. NSID: ok (sin). COOKIE: ok. CLIENTSUBNET: ok.
Nameserver doesn't pass all EDNS-Checks: ns01.freenom.com: OP100: no result. FLAGS: no result. V1: no result. V1OP100: no result. V1FLAGS: no result. DNSSEC: no result. V1DNSSEC: no result. NSID: no result. COOKIE: no result. CLIENTSUBNET: no result.
Nameserver doesn't pass all EDNS-Checks: ns01.freenom.com / 54.171.131.39: OP100: no result. FLAGS: no result. V1: no result. V1OP100: no result. V1FLAGS: no result. DNSSEC: no result. V1DNSSEC: no result. NSID: no result. COOKIE: no result. CLIENTSUBNET: no result.
Nameserver doesn't pass all EDNS-Checks: ns02.freenom.com / 52.19.156.76: OP100: no result. FLAGS: no result. V1: no result. V1OP100: no result. V1FLAGS: no result. DNSSEC: no result. V1DNSSEC: no result. NSID: no result. COOKIE: no result. CLIENTSUBNET: no result.
Nameserver doesn't pass all EDNS-Checks: ns03.freenom.com / 104.155.27.112: OP100: no result. FLAGS: no result. V1: no result. V1OP100: no result. V1FLAGS: no result. DNSSEC: no result. V1DNSSEC: no result. NSID: no result. COOKIE: no result. CLIENTSUBNET: no result.
Nameserver doesn't pass all EDNS-Checks: ns04.freenom.com / 104.155.29.241: OP100: no result. FLAGS: no result. V1: no result. V1OP100: no result. V1FLAGS: no result. DNSSEC: no result. V1DNSSEC: no result. NSID: no result. COOKIE: no result. CLIENTSUBNET: no result.
AGood: All SOA have the same Serial Number
AGood: Consistency between delegation and zone. The set of NS records served by the authoritative name servers must match those proposed for the delegation in the parent zone. Ordered list of name servers: ns01.freenom.com,ns02.freenom.com,ns03.freenom.com,ns04.freenom.com
Warning: No CAA entry with issue/issuewild found, every CAA can create a certificate. Read https://en.wikipedia.org/wiki/DNS_Certification_Authority_Authorization to learn some basics about the idea of CAA. Your name server must support such an entry. Not all dns providers support CAA entries.
AGood: All checks /.well-known/acme-challenge/random-filename without redirects answer with the expected http status 404 - Not Found. Creating a Letsencrypt certificate via http-01 challenge should work. If it doesn't work: Check your vHost configuration (apachectl -S, httpd -S, nginx -T). Every combination of port and ServerName / ServerAlias (Apache) or Server (Nginx) must be unique. Merge duplicated entries in one vHost. If you use an IIS, extensionless files must be allowed in the /.well-known/acme-challenge subdirectory. Create a web.config in that directory. Content: <configuration><system.webServer><staticContent><mimeMap fileExtension="." mimeType="text/plain" /></staticContent></system.webServer></configuration>. If you have a redirect http ⇒ https, that's ok, Letsencrypt follows such redirects to port 80 / 443 (same or other server). There must be a certificate. But the certificate may be expired, self signed or with a not matching domain name. Checking the validation file Letsencrypt ignores such certificate errors. Trouble creating a certificate? Use https://community.letsencrypt.org/ to ask.
AInfo: No img element found, no alt attribute checked
AGood: Domainname is not on the "Specially Designated Nationals And Blocked Persons List" (SDN). That's an US-list of individuals and companies owned or controlled by, or acting for or on behalf of, targeted countries. It also lists individuals, groups, and entities, such as terrorists and narcotics traffickers designated under programs that are not country-specific. Collectively, such individuals and companies are called "Specially Designated Nationals" or "SDNs." Their assets are blocked and U.S. persons are generally prohibited from dealing with them. So if a domain name is on that list, it's impossible to create a Letsencrypt certificate with that domain name. Check the list manual - https://www.treasury.gov/resource-center/sanctions/sdn-list/pages/default.aspx
ADuration: 82657 milliseconds, 82.657 seconds


8. Connections

No connection informations found. Perhaps only http - connections.


9. Certificates

No certificate informations found. Perhaps only http - connections.


10. Last Certificates - Certificate Transparency Log Check

1. Source CertSpotter - active certificates (one check per day)

Issuerlast 7 daysactivenum Certs
CN=Let's Encrypt Authority X3, O=Let's Encrypt, C=US
0
1
1

CertSpotter-IdIssuernot beforenot afterDomain namesLE-Duplicatenext LE
1431145163
leaf cert
CN=Let's Encrypt Authority X3, O=Let's Encrypt, C=US
2020-02-14 07:09:07
2020-05-14 07:09:07
www.khhssandbox.ml - 1 entries



2. Source crt.sh - old and new certificates, sometimes very slow (Update 2020-01-11: Should now work again - code updated. Old message: currently no newer certificates - read Crt.sh has stopped - Letsencrypt-forum - may work next week again - 2019-12-02 - but I must check the code).

No CRT - CT-Log entries found


11. Html-Content - Entries

No Html-Content entries found. Only checked if https + status 200/401/403/404


12. CAA - Entries

DomainnameflagNameValue∑ Queries∑ Timeout
www.khhssandbox.ml
0

no CAA entry found
1
0
khhssandbox.ml
0

no CAA entry found
1
0
ml
0

no CAA entry found
1
0


13. TXT - Entries

DomainnameTXT EntryStatus∑ Queries∑ Timeout
khhssandbox.ml

ok
1
0
www.khhssandbox.ml

ok
1
0
_acme-challenge.khhssandbox.ml

Name Error - The domain name does not exist
1
0
_acme-challenge.www.khhssandbox.ml

Name Error - The domain name does not exist
1
0
_acme-challenge.khhssandbox.ml.khhssandbox.ml

Name Error - The domain name does not exist
1
0
_acme-challenge.www.khhssandbox.ml.khhssandbox.ml

Name Error - The domain name does not exist
1
0
_acme-challenge.www.khhssandbox.ml.www.khhssandbox.ml

Name Error - The domain name does not exist
1
0


14. Portchecks

Domain or IPPortDescriptionResultAnswer
www.khhssandbox.ml
21
FTP



www.khhssandbox.ml
21
FTP



www.khhssandbox.ml
22
SSH
open
SSH-2.0-OpenSSH_7.6p1 Ubuntu-4ubuntu0.3

www.khhssandbox.ml
22
SSH
open
SSH-2.0-OpenSSH_7.6p1 Ubuntu-4ubuntu0.3

www.khhssandbox.ml
25
SMTP



www.khhssandbox.ml
25
SMTP



www.khhssandbox.ml
53
DNS



www.khhssandbox.ml
53
DNS



www.khhssandbox.ml
110
POP3



www.khhssandbox.ml
110
POP3



www.khhssandbox.ml
143
IMAP



www.khhssandbox.ml
143
IMAP



www.khhssandbox.ml
465
SMTP (encrypted)



www.khhssandbox.ml
465
SMTP (encrypted)



www.khhssandbox.ml
587
SMTP (encrypted, submission)



www.khhssandbox.ml
587
SMTP (encrypted, submission)



www.khhssandbox.ml
993
IMAP (encrypted)



www.khhssandbox.ml
993
IMAP (encrypted)



www.khhssandbox.ml
995
POP3 (encrypted)



www.khhssandbox.ml
995
POP3 (encrypted)



www.khhssandbox.ml
1433
MS SQL



www.khhssandbox.ml
1433
MS SQL



www.khhssandbox.ml
2082
cPanel (http)



www.khhssandbox.ml
2082
cPanel (http)



www.khhssandbox.ml
2083
cPanel (https)



www.khhssandbox.ml
2083
cPanel (https)



www.khhssandbox.ml
2086
WHM (http)



www.khhssandbox.ml
2086
WHM (http)



www.khhssandbox.ml
2087
WHM (https)



www.khhssandbox.ml
2087
WHM (https)



www.khhssandbox.ml
2089
cPanel Licensing



www.khhssandbox.ml
2089
cPanel Licensing



www.khhssandbox.ml
2095
cPanel Webmail (http)



www.khhssandbox.ml
2095
cPanel Webmail (http)



www.khhssandbox.ml
2096
cPanel Webmail (https)



www.khhssandbox.ml
2096
cPanel Webmail (https)



www.khhssandbox.ml
2222
DirectAdmin (http)



www.khhssandbox.ml
2222
DirectAdmin (http)



www.khhssandbox.ml
2222
DirectAdmin (https)



www.khhssandbox.ml
2222
DirectAdmin (https)



www.khhssandbox.ml
3306
mySql



www.khhssandbox.ml
3306
mySql



www.khhssandbox.ml
5224
Plesk Licensing



www.khhssandbox.ml
5224
Plesk Licensing



www.khhssandbox.ml
5432
PostgreSQL



www.khhssandbox.ml
5432
PostgreSQL



www.khhssandbox.ml
8080
Ookla Speedtest (http)



www.khhssandbox.ml
8080
Ookla Speedtest (http)



www.khhssandbox.ml
8080
Ookla Speedtest (https)



www.khhssandbox.ml
8080
Ookla Speedtest (https)



www.khhssandbox.ml
8083
VestaCP http



www.khhssandbox.ml
8083
VestaCP http



www.khhssandbox.ml
8083
VestaCP https



www.khhssandbox.ml
8083
VestaCP https



www.khhssandbox.ml
8443
Plesk Administration (https)



www.khhssandbox.ml
8443
Plesk Administration (https)



www.khhssandbox.ml
8447
Plesk Installer + Updates



www.khhssandbox.ml
8447
Plesk Installer + Updates



www.khhssandbox.ml
8880
Plesk Administration (http)



www.khhssandbox.ml
8880
Plesk Administration (http)



www.khhssandbox.ml
10000
Webmin (http)



www.khhssandbox.ml
10000
Webmin (http)



www.khhssandbox.ml
10000
Webmin (https)



www.khhssandbox.ml
10000
Webmin (https)



3.226.230.71
21
FTP



3.226.230.71
21
FTP



3.226.230.71
22
SSH
open
SSH-2.0-OpenSSH_7.6p1 Ubuntu-4ubuntu0.3

3.226.230.71
22
SSH
open
SSH-2.0-OpenSSH_7.6p1 Ubuntu-4ubuntu0.3

3.226.230.71
25
SMTP



3.226.230.71
25
SMTP



3.226.230.71
53
DNS



3.226.230.71
53
DNS



3.226.230.71
110
POP3



3.226.230.71
110
POP3



3.226.230.71
143
IMAP



3.226.230.71
143
IMAP



3.226.230.71
465
SMTP (encrypted)



3.226.230.71
465
SMTP (encrypted)



3.226.230.71
587
SMTP (encrypted, submission)



3.226.230.71
587
SMTP (encrypted, submission)



3.226.230.71
993
IMAP (encrypted)



3.226.230.71
993
IMAP (encrypted)



3.226.230.71
995
POP3 (encrypted)



3.226.230.71
995
POP3 (encrypted)



3.226.230.71
1433
MS SQL



3.226.230.71
1433
MS SQL



3.226.230.71
2082
cPanel (http)



3.226.230.71
2082
cPanel (http)



3.226.230.71
2083
cPanel (https)



3.226.230.71
2083
cPanel (https)



3.226.230.71
2086
WHM (http)



3.226.230.71
2086
WHM (http)



3.226.230.71
2087
WHM (https)



3.226.230.71
2087
WHM (https)



3.226.230.71
2089
cPanel Licensing



3.226.230.71
2089
cPanel Licensing



3.226.230.71
2095
cPanel Webmail (http)



3.226.230.71
2095
cPanel Webmail (http)



3.226.230.71
2096
cPanel Webmail (https)



3.226.230.71
2096
cPanel Webmail (https)



3.226.230.71
2222
DirectAdmin (http)



3.226.230.71
2222
DirectAdmin (http)



3.226.230.71
2222
DirectAdmin (https)



3.226.230.71
2222
DirectAdmin (https)



3.226.230.71
3306
mySql



3.226.230.71
3306
mySql



3.226.230.71
5224
Plesk Licensing



3.226.230.71
5224
Plesk Licensing



3.226.230.71
5432
PostgreSQL



3.226.230.71
5432
PostgreSQL



3.226.230.71
8080
Ookla Speedtest (http)



3.226.230.71
8080
Ookla Speedtest (http)



3.226.230.71
8080
Ookla Speedtest (https)



3.226.230.71
8080
Ookla Speedtest (https)



3.226.230.71
8083
VestaCP http



3.226.230.71
8083
VestaCP http



3.226.230.71
8083
VestaCP https



3.226.230.71
8083
VestaCP https



3.226.230.71
8443
Plesk Administration (https)



3.226.230.71
8443
Plesk Administration (https)



3.226.230.71
8447
Plesk Installer + Updates



3.226.230.71
8447
Plesk Installer + Updates



3.226.230.71
8880
Plesk Administration (http)



3.226.230.71
8880
Plesk Administration (http)



3.226.230.71
10000
Webmin (http)



3.226.230.71
10000
Webmin (http)



3.226.230.71
10000
Webmin (https)



3.226.230.71
10000
Webmin (https)





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