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



Y

Private IP-Address found

Checked:
01.06.2020 15:35:29


Older results

No older results found


1. IP-Addresses

HostTypeIP-Addressis auth.∑ Queries∑ Timeout
jitsi-feri.duckdns.org
A
192.168.1.51
No Hostname found
yes
1
0

AAAA

yes


www.jitsi-feri.duckdns.org
A
192.168.1.51
No Hostname found
yes
1
0

AAAA

yes


*.jitsi-feri.duckdns.org
A
192.168.1.51
yes



AAAA

yes



CNAME

yes



2. DNSSEC

Zone (*)DNSSEC - Informations

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 48903, Flags 256



1 RRSIG RR to validate DNSKEY RR found



RRSIG-Owner (root), Algorithm: 8, 0 Labels, original TTL: 172800 sec, Signature-expiration: 21.06.2020, 00:00:00 +, Signature-Inception: 31.05.2020, 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: org
org
2 DS RR in the parent zone found



1 RRSIG RR to validate DS RR found



RRSIG-Owner org., Algorithm: 8, 1 Labels, original TTL: 86400 sec, Signature-expiration: 14.06.2020, 05:00:00 +, Signature-Inception: 01.06.2020, 04:00:00 +, KeyTag 48903, Signer-Name: (root)



Status: Good - Algorithmus 8 and DNSKEY with KeyTag 48903 used to validate the DS RRSet in the parent zone



3 DNSKEY RR found



Public Key with Algorithm 7, KeyTag 17883, Flags 257 (SEP = Secure Entry Point)



Public Key with Algorithm 7, KeyTag 27074, Flags 256



Public Key with Algorithm 7, KeyTag 62165, Flags 256



2 RRSIG RR to validate DNSKEY RR found



RRSIG-Owner org., Algorithm: 7, 1 Labels, original TTL: 900 sec, Signature-expiration: 15.06.2020, 15:21:06 +, Signature-Inception: 25.05.2020, 14:21:06 +, KeyTag 17883, Signer-Name: org



RRSIG-Owner org., Algorithm: 7, 1 Labels, original TTL: 900 sec, Signature-expiration: 15.06.2020, 15:21:06 +, Signature-Inception: 25.05.2020, 14:21:06 +, KeyTag 27074, Signer-Name: org



Status: Good - Algorithmus 7 and DNSKEY with KeyTag 17883 used to validate the DNSKEY RRSet



Status: Good - Algorithmus 7 and DNSKEY with KeyTag 27074 used to validate the DNSKEY RRSet



Status: Valid Chain of trust. Parent-DS with Algorithm 7, KeyTag 17883, DigestType 1 and Digest "OMXPk7Npx1V+BRX6qlcGDxv7EsE=" validates local Key with the same values, Key ist Secure Entry Point (SEP) of the zone



Status: Valid Chain of trust. Parent-DS with Algorithm 7, KeyTag 17883, DigestType 2 and Digest "2InK15DwGXnoYNZie1j4WrVU4OSR/gZRXzVUjR605u4=" validates local Key with the same values, Key ist Secure Entry Point (SEP) of the zone

Zone: duckdns.org
duckdns.org
0 DS RR in the parent zone found



DS-Query in the parent zone has a valid NSEC3 RR as result with the hashed query name "mnorhcks4b6fjob5ap1mrs7utmhf26bm" between the hashed NSEC3-owner "mnoq314vn5m775pq7osblqq7jdr6o56r" and the hashed NextOwner "mnpis27oa7d3n2t47lo6516sp4um1am4". So the parent zone confirmes the not-existence of a DS RR.
Bitmap: NS, DS, RRSIG Validated: RRSIG-Owner mnoq314vn5m775pq7osblqq7jdr6o56r.org., Algorithm: 7, 2 Labels, original TTL: 86400 sec, Signature-expiration: 15.06.2020, 15:21:06 +, Signature-Inception: 25.05.2020, 14:21:06 +, KeyTag 27074, Signer-Name: org



0 DNSKEY RR found




Zone: jitsi-feri.duckdns.org
jitsi-feri.duckdns.org
0 DS RR in the parent zone found



0 DNSKEY RR found




Zone: www.jitsi-feri.duckdns.org
www.jitsi-feri.duckdns.org
0 DS RR in the parent zone found


3. Name Servers

DomainNameserverNS-IP
www.jitsi-feri.duckdns.org
  ns1.duckdns.org


  ns2.duckdns.org


  ns3.duckdns.org

jitsi-feri.duckdns.org
  ns1.duckdns.org
54.187.92.222
Portland/Oregon/United States (US) - Amazon.com, Inc.


  ns2.duckdns.org
54.191.117.119
Portland/Oregon/United States (US) - Amazon.com, Inc.


  ns3.duckdns.org
52.26.169.94
Portland/Oregon/United States (US) - Amazon.com, Inc.

duckdns.org
  ns1.duckdns.org
54.187.92.222
Portland/Oregon/United States (US) - Amazon.com, Inc.


  ns2.duckdns.org
54.191.117.119
Portland/Oregon/United States (US) - Amazon.com, Inc.


  ns3.duckdns.org
52.26.169.94
Portland/Oregon/United States (US) - Amazon.com, Inc.

org
  a0.org.afilias-nst.info / ns000b.app5.ams2.afilias-nst.info


  a2.org.afilias-nst.info / 2.ber.pch


  b0.org.afilias-nst.org / ns000b.app15.ams2.afilias-nst.info


  b2.org.afilias-nst.org / 4.fra.pch


  c0.org.afilias-nst.info / app23.iad1.hosts.meta.redstone.afilias-nst.info-2


  d0.org.afilias-nst.org / ns000b.app27.ams2.afilias-nst.info


4. SOA-Entries


Domain:org
Zone-Name:org
Primary:a0.org.afilias-nst.info
Mail:noc.afilias-nst.info
Serial:2013953665
Refresh:1800
Retry:900
Expire:604800
TTL:86400
num Entries:6


Domain:duckdns.org
Zone-Name:duckdns.org
Primary:ns1.duckdns.org
Mail:hostmaster.duckdns.org
Serial:2019170803
Refresh:6000
Retry:120
Expire:2419200
TTL:600
num Entries:1


Domain:duckdns.org
Zone-Name:duckdns.org
Primary:ns2.duckdns.org
Mail:hostmaster.duckdns.org
Serial:2019170803
Refresh:6000
Retry:120
Expire:2419200
TTL:600
num Entries:1


Domain:duckdns.org
Zone-Name:duckdns.org
Primary:ns3.duckdns.org
Mail:hostmaster.duckdns.org
Serial:2019170803
Refresh:6000
Retry:120
Expire:2419200
TTL:600
num Entries:1


Domain:jitsi-feri.duckdns.org
Zone-Name:duckdns.org
Primary:ns1.duckdns.org
Mail:hostmaster.duckdns.org
Serial:2019170803
Refresh:6000
Retry:120
Expire:2419200
TTL:600
num Entries:1


Domain:jitsi-feri.duckdns.org
Zone-Name:duckdns.org
Primary:ns2.duckdns.org
Mail:hostmaster.duckdns.org
Serial:2019170803
Refresh:6000
Retry:120
Expire:2419200
TTL:600
num Entries:1


Domain:jitsi-feri.duckdns.org
Zone-Name:duckdns.org
Primary:ns3.duckdns.org
Mail:hostmaster.duckdns.org
Serial:2019170803
Refresh:6000
Retry:120
Expire:2419200
TTL:600
num Entries:1


Domain:www.jitsi-feri.duckdns.org
Zone-Name:duckdns.org
Primary:ns1.duckdns.org
Mail:hostmaster.duckdns.org
Serial:2019170803
Refresh:6000
Retry:120
Expire:2419200
TTL:600
num Entries:1


Domain:www.jitsi-feri.duckdns.org
Zone-Name:duckdns.org
Primary:ns2.duckdns.org
Mail:hostmaster.duckdns.org
Serial:2019170803
Refresh:6000
Retry:120
Expire:2419200
TTL:600
num Entries:1


Domain:www.jitsi-feri.duckdns.org
Zone-Name:duckdns.org
Primary:ns3.duckdns.org
Mail:hostmaster.duckdns.org
Serial:2019170803
Refresh:6000
Retry:120
Expire:2419200
TTL:600
num Entries:1


5. Screenshots

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

6. Url-Checks

DomainnameHttp-StatusredirectSec.G







7. Comments


1. General Results, most used to calculate the result

Aname "jitsi-feri.duckdns.org" is domain, public suffix is "duckdns.org", top-level-domain-type is "generic", tld-manager is "Public Interest Registry (PIR)"
Agood: No asked Authoritative Name Server had a timeout
HSTS-Preload-Status: unknown. Domain never included in the Preload-list. Check https://hstspreload.org/ to learn some basics about the Google-Preload-List.
XFatal error: Nameserver doesn't support TCP connection: ns1.duckdns.org: Timeout
XFatal error: Nameserver doesn't support TCP connection: ns1.duckdns.org / 54.187.92.222: Timeout
XFatal error: Nameserver doesn't support TCP connection: ns2.duckdns.org: Timeout
XFatal error: Nameserver doesn't support TCP connection: ns2.duckdns.org / 54.191.117.119: Timeout
XFatal error: Nameserver doesn't support TCP connection: ns3.duckdns.org: Timeout
XFatal error: Nameserver doesn't support TCP connection: ns3.duckdns.org / 52.26.169.94: Timeout
Yjitsi-feri.duckdns.org

192.168.1.51
Warning: Private ip address found. No connection possible. There are two types of ip addresses: Worldwide unique, global addresses and private addresses. If you want that other users connect your domain, your domain must have minimal one A- (ipv4) or AAAA- (ipv6) entry with a global ip address. Check https://en.wikipedia.org/wiki/Private_network to understand the details: 192.168.0.0 to 192.168.255.255: Class C - 256 private net, every with 256 addresses
Ywww.jitsi-feri.duckdns.org

192.168.1.51
Warning: Private ip address found. No connection possible. There are two types of ip addresses: Worldwide unique, global addresses and private addresses. If you want that other users connect your domain, your domain must have minimal one A- (ipv4) or AAAA- (ipv6) entry with a global ip address. Check https://en.wikipedia.org/wiki/Private_network to understand the details: 192.168.0.0 to 192.168.255.255: Class C - 256 private net, every with 256 addresses

2. DNS- and NameServer - Checks

AInfo:: 2 Root-climbing DNS Queries required to find all IPv4- and IPv6-Addresses of 3 Name Servers.
AInfo:: 2 Queries complete, 2 with IPv6, 0 with IPv4.
AGood: All DNS Queries done via IPv6.
AGood: Some ip addresses of name servers found with the minimum of two DNS Queries. One to find the TLD-Zone, one to ask the TLD-Zone.ns1.duckdns.org (54.187.92.222), ns2.duckdns.org (54.191.117.119), ns3.duckdns.org (52.26.169.94)
AGood (1 - 3.0):: An average of 0.7 queries per domain name server required to find all ip addresses of all name servers.
AInfo:: 3 different Name Servers found: ns1.duckdns.org, ns2.duckdns.org, ns3.duckdns.org, 3 Name Servers included in Delegation: ns1.duckdns.org, ns2.duckdns.org, ns3.duckdns.org, 3 Name Servers included in 1 Zone definitions: ns1.duckdns.org, ns2.duckdns.org, ns3.duckdns.org, 3 Name Servers listed in SOA.Primary: ns1.duckdns.org, ns2.duckdns.org, ns3.duckdns.org.
Error: Different SOA.Primary Name Servers found, different SOA Definitions.: ns1.duckdns.org,ns2.duckdns.org,ns3.duckdns.org.
AGood: SOA.Primary Name Server included in the delegation set.: ns1.duckdns.org,ns2.duckdns.org,ns3.duckdns.org.
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: ns1.duckdns.org, ns2.duckdns.org, ns3.duckdns.org
AGood: All Name Server Domain Names have a Public Suffix.
AGood: All Name Server Domain Names ending with a Public Suffix have minimal one IPv4- or IPv6 address.
AGood: All Name Server ip addresses are public.
AGood: Minimal 2 different name servers (public suffix and public ip address) found: 3 different Name Servers found
Warning: No Name Server IPv6 address found. IPv6 is the future, so your name servers should be visible via IPv6.: 3 different Name Servers found
Warning: All Name Servers have the same Top Level Domain / Public Suffix. If there is a problem with that Top Level Domain, your domain may be affected. Better: Use Name Servers with different top level domains.: 3 Name Servers, 1 Top Level Domain: duckdns.org
Warning: All Name Servers have the same domain name. If there is a problem with that domain name (or with the name servers of that domain name), your domain may be affected. Better: Use Name Servers with different domain names / different top level domains.: Only one domain name used:
Warning: All Name Servers from the same Country / IP location.: 3 Name Servers, 1 Countries: US
AInfo: Ipv4-Subnet-list: 3 Name Servers, 2 different subnets (first Byte): 52., 54., 3 different subnets (first two Bytes): 52.26., 54.187., 54.191., 3 different subnets (first three Bytes): 52.26.169., 54.187.92., 54.191.117.
AGood: Name Server IPv4-addresses from different subnet found:
AGood: Nameserver supports Echo Capitalization: 3 good Nameserver
AGood: Nameserver supports EDNS with max. 512 Byte Udp payload, message is smaller: 3 good Nameserver
Nameserver doesn't pass all EDNS-Checks: ns1.duckdns.org: OP100: ok. FLAGS: ok. V1: SOA NOT expected, but found, BADVER expected, NOERR found, Version 0 expectend and found. V1OP100: SOA NOT expected, but found, BADVER expected, NOERR found, Version 0 expectend and found, no OPT100 expected, no OPT100 found. V1FLAGS: SOA NOT expected, but found, BADVER expected, NOERR found, Version 0 expectend and found. DNSSEC: ok. V1DNSSEC: SOA NOT expected, but found, BADVER expected, NOERR found, Version 0 expectend and found. NSID: ok. COOKIE: ok. CLIENTSUBNET: ok.
Nameserver doesn't pass all EDNS-Checks: ns1.duckdns.org / 54.187.92.222: OP100: ok. FLAGS: ok. V1: SOA NOT expected, but found, BADVER expected, NOERR found, Version 0 expectend and found. V1OP100: SOA NOT expected, but found, BADVER expected, NOERR found, Version 0 expectend and found, no OPT100 expected, no OPT100 found. V1FLAGS: SOA NOT expected, but found, BADVER expected, NOERR found, Version 0 expectend and found. DNSSEC: ok. V1DNSSEC: SOA NOT expected, but found, BADVER expected, NOERR found, Version 0 expectend and found. NSID: ok. COOKIE: ok. CLIENTSUBNET: ok.
Nameserver doesn't pass all EDNS-Checks: ns1.duckdns.org / 54.187.92.222: OP100: ok. FLAGS: ok. V1: SOA NOT expected, but found, BADVER expected, NOERR found, Version 0 expectend and found. V1OP100: SOA NOT expected, but found, BADVER expected, NOERR found, Version 0 expectend and found, no OPT100 expected, no OPT100 found. V1FLAGS: SOA NOT expected, but found, BADVER expected, NOERR found, Version 0 expectend and found. DNSSEC: ok. V1DNSSEC: SOA NOT expected, but found, BADVER expected, NOERR found, Version 0 expectend and found. NSID: ok. COOKIE: ok. CLIENTSUBNET: ok.
Nameserver doesn't pass all EDNS-Checks: ns2.duckdns.org: OP100: ok. FLAGS: ok. V1: SOA NOT expected, but found, BADVER expected, NOERR found, Version 0 expectend and found. V1OP100: SOA NOT expected, but found, BADVER expected, NOERR found, Version 0 expectend and found, no OPT100 expected, no OPT100 found. V1FLAGS: SOA NOT expected, but found, BADVER expected, NOERR found, Version 0 expectend and found. DNSSEC: ok. V1DNSSEC: SOA NOT expected, but found, BADVER expected, NOERR found, Version 0 expectend and found. NSID: ok. COOKIE: ok. CLIENTSUBNET: ok.
Nameserver doesn't pass all EDNS-Checks: ns2.duckdns.org / 54.191.117.119: OP100: ok. FLAGS: ok. V1: SOA NOT expected, but found, BADVER expected, NOERR found, Version 0 expectend and found. V1OP100: SOA NOT expected, but found, BADVER expected, NOERR found, Version 0 expectend and found, no OPT100 expected, no OPT100 found. V1FLAGS: SOA NOT expected, but found, BADVER expected, NOERR found, Version 0 expectend and found. DNSSEC: ok. V1DNSSEC: SOA NOT expected, but found, BADVER expected, NOERR found, Version 0 expectend and found. NSID: ok. COOKIE: ok. CLIENTSUBNET: ok.
Nameserver doesn't pass all EDNS-Checks: ns2.duckdns.org / 54.191.117.119: OP100: ok. FLAGS: ok. V1: SOA NOT expected, but found, BADVER expected, NOERR found, Version 0 expectend and found. V1OP100: SOA NOT expected, but found, BADVER expected, NOERR found, Version 0 expectend and found, no OPT100 expected, no OPT100 found. V1FLAGS: SOA NOT expected, but found, BADVER expected, NOERR found, Version 0 expectend and found. DNSSEC: ok. V1DNSSEC: SOA NOT expected, but found, BADVER expected, NOERR found, Version 0 expectend and found. NSID: ok. COOKIE: ok. CLIENTSUBNET: ok.
Nameserver doesn't pass all EDNS-Checks: ns3.duckdns.org: OP100: ok. FLAGS: ok. V1: SOA NOT expected, but found, BADVER expected, NOERR found, Version 0 expectend and found. V1OP100: SOA NOT expected, but found, BADVER expected, NOERR found, Version 0 expectend and found, no OPT100 expected, no OPT100 found. V1FLAGS: SOA NOT expected, but found, BADVER expected, NOERR found, Version 0 expectend and found. DNSSEC: ok. V1DNSSEC: SOA NOT expected, but found, BADVER expected, NOERR found, Version 0 expectend and found. NSID: ok. COOKIE: ok. CLIENTSUBNET: ok.
Nameserver doesn't pass all EDNS-Checks: ns3.duckdns.org / 52.26.169.94: OP100: ok. FLAGS: ok. V1: SOA NOT expected, but found, BADVER expected, NOERR found, Version 0 expectend and found. V1OP100: SOA NOT expected, but found, BADVER expected, NOERR found, Version 0 expectend and found, no OPT100 expected, no OPT100 found. V1FLAGS: SOA NOT expected, but found, BADVER expected, NOERR found, Version 0 expectend and found. DNSSEC: ok. V1DNSSEC: SOA NOT expected, but found, BADVER expected, NOERR found, Version 0 expectend and found. NSID: ok. COOKIE: ok. CLIENTSUBNET: ok.
Nameserver doesn't pass all EDNS-Checks: ns3.duckdns.org / 52.26.169.94: OP100: ok. FLAGS: ok. V1: SOA NOT expected, but found, BADVER expected, NOERR found, Version 0 expectend and found. V1OP100: SOA NOT expected, but found, BADVER expected, NOERR found, Version 0 expectend and found, no OPT100 expected, no OPT100 found. V1FLAGS: SOA NOT expected, but found, BADVER expected, NOERR found, Version 0 expectend and found. DNSSEC: ok. V1DNSSEC: SOA NOT expected, but found, BADVER expected, NOERR found, Version 0 expectend and found. NSID: ok. COOKIE: ok. CLIENTSUBNET: ok.
AGood: All SOA have the same Serial Number
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.

3. Content- and Performance-critical Checks

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: 695500 milliseconds, 695.500 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)

No CertSpotter - CT-Log entries found


2. Source crt.sh - old and new certificates, sometimes very slow - only certificates with "not after" > 2019 are listed

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. Nameserver - IP-Adresses

Required Root-climbing DNS-Queries to find ip addresses of all Name Servers: ns1.duckdns.org, ns2.duckdns.org, ns3.duckdns.org

QNr.DomainTypeNS used
1
org
NS
b.root-servers.net (2001:500:200::b)

Answer: a0.org.afilias-nst.info, a2.org.afilias-nst.info, b0.org.afilias-nst.org, b2.org.afilias-nst.org, c0.org.afilias-nst.info, d0.org.afilias-nst.org
2
ns1.duckdns.org: 54.187.92.222
NS
a0.org.afilias-nst.info (2001:500:e::1)

Answer: ns2.duckdns.org
54.191.117.119

Answer: ns3.duckdns.org
52.26.169.94


13. CAA - Entries

DomainnameflagNameValue∑ Queries∑ Timeout
www.jitsi-feri.duckdns.org



1
0
jitsi-feri.duckdns.org



1
0
duckdns.org
0

no CAA entry found
1
0
org
0

no CAA entry found
1
0


14. TXT - Entries

DomainnameTXT EntryStatus∑ Queries∑ Timeout
jitsi-feri.duckdns.org

ok
1
0
www.jitsi-feri.duckdns.org

ok
1
0
_acme-challenge.jitsi-feri.duckdns.org

missing entry or wrong length
1
0
_acme-challenge.www.jitsi-feri.duckdns.org

missing entry or wrong length
1
0
_acme-challenge.jitsi-feri.duckdns.org.jitsi-feri.duckdns.org

perhaps wrong
1
0
_acme-challenge.www.jitsi-feri.duckdns.org.jitsi-feri.duckdns.org

perhaps wrong
1
0
_acme-challenge.www.jitsi-feri.duckdns.org.www.jitsi-feri.duckdns.org

perhaps wrong
1
0


15. Portchecks

Small Code Update - wait one minute



Permalink: https://check-your-website.server-daten.de/?i=71b9cc4e-73a3-4e5c-a910-c31a5d5a2a97


Last Result: https://check-your-website.server-daten.de/?q=jitsi-feri.duckdns.org - 2020-06-05 22:30:57


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