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DNS-problem - authoritative Nameserver refused, not defined or timeout

Checked:
04.08.2020 21:04:41

Older results

No older results found

1. IP-Addresses

Host	Type	IP-Address	is auth.	∑ Queries	∑ Timeout
scorpioclan.ddns.net	A	80.137.56.231 Oberlungwitz/Saxony/Germany (DE) - Deutsche Telekom AG Hostname: p508938e7.dip0.t-ipconnect.de	yes	1	0
	AAAA		yes
www.scorpioclan.ddns.net		Name Error	yes	1	0
*.scorpioclan.ddns.net	A	Name Error	yes
	AAAA	Name Error	yes
	CNAME	Name Error	yes

2. DNSSEC

Zone (*)	DNSSEC - Informations

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


	DS with Algorithm 8, KeyTag 20326, DigestType 2 and Digest 4G1EuAuPHTmpXAsNfGXQhFjogECbvGg0VxBCN8f47I0=


	• 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 46594, Flags 256


	1 RRSIG RR to validate DNSKEY RR found


	RRSIG-Owner (root), Algorithm: 8, 0 Labels, original TTL: 172800 sec, Signature-expiration: 21.08.2020, 00:00:00 +, Signature-Inception: 31.07.2020, 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: net
net	1 DS RR in the parent zone found


	DS with Algorithm 8, KeyTag 35886, DigestType 2 and Digest eGKyf19Rbr4ZaARE1M5edimBkxhCxGXwAjZAHYvZc+4=


	1 RRSIG RR to validate DS RR found


	RRSIG-Owner net., Algorithm: 8, 1 Labels, original TTL: 86400 sec, Signature-expiration: 17.08.2020, 17:00:00 +, Signature-Inception: 04.08.2020, 16:00:00 +, KeyTag 46594, Signer-Name: (root)


	• Status: Good - Algorithmus 8 and DNSKEY with KeyTag 46594 used to validate the DS RRSet in the parent zone


	2 DNSKEY RR found


	Public Key with Algorithm 8, KeyTag 35886, Flags 257 (SEP = Secure Entry Point)


	Public Key with Algorithm 8, KeyTag 56519, Flags 256


	1 RRSIG RR to validate DNSKEY RR found


	RRSIG-Owner net., Algorithm: 8, 1 Labels, original TTL: 86400 sec, Signature-expiration: 17.08.2020, 16:28:30 +, Signature-Inception: 02.08.2020, 16:23:30 +, KeyTag 35886, Signer-Name: net


	• Status: Good - Algorithmus 8 and DNSKEY with KeyTag 35886 used to validate the DNSKEY RRSet


	• Status: Valid Chain of trust. Parent-DS with Algorithm 8, KeyTag 35886, DigestType 2 and Digest "eGKyf19Rbr4ZaARE1M5edimBkxhCxGXwAjZAHYvZc+4=" validates local Key with the same values, Key ist Secure Entry Point (SEP) of the zone

Zone: ddns.net
ddns.net	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 "e51o1pdujacqu01c7sqi76kt359m7agm" between the hashed NSEC3-owner "e51ft6gc694crans3uvq7kak7lgi3vjc" and the hashed NextOwner "e527i2fqjspdhf7n5kpntlh2e1mie71r". So the parent zone confirmes the not-existence of a DS RR. Bitmap: NS, DS, RRSIG Validated: RRSIG-Owner e51ft6gc694crans3uvq7kak7lgi3vjc.net., Algorithm: 8, 2 Labels, original TTL: 86400 sec, Signature-expiration: 11.08.2020, 15:21:58 +, Signature-Inception: 04.08.2020, 14:11:58 +, KeyTag 56519, Signer-Name: net


	DS-Query in the parent zone sends valid NSEC3 RR with the Hash "a1rt98bs5qgc9nfi51s9hci47uljg6jh" as Owner. That's the Hash of "net" with the NextHashedOwnerName "a1ruuffjkct2q54p78f8ejgj8jbk7i8b". So that domain name is the Closest Encloser of "ddns.net". Opt-Out: True. Bitmap: NS, SOA, RRSIG, DNSKEY, NSEC3PARAM Validated: RRSIG-Owner a1rt98bs5qgc9nfi51s9hci47uljg6jh.net., Algorithm: 8, 2 Labels, original TTL: 86400 sec, Signature-expiration: 09.08.2020, 06:45:26 +, Signature-Inception: 02.08.2020, 05:35:26 +, KeyTag 56519, Signer-Name: net


	0 DNSKEY RR found




Zone: scorpioclan.ddns.net
scorpioclan.ddns.net	0 DS RR in the parent zone found


	0 DNSKEY RR found




Zone: www.scorpioclan.ddns.net
www.scorpioclan.ddns.net	0 DS RR in the parent zone found

3. Name Servers

Domain	Nameserver	NS-IP
www.scorpioclan.ddns.net	• nf1.no-ip.com
scorpioclan.ddns.net	• nf1.no-ip.com / f0202.ams.hv.as29997.net	194.62.182.53 City of London/England/United Kingdom (GB) - ARTEC	•
	•	2a07:dc00:1820::53 Amsterdam/North Holland/Netherlands (NL) - Vitalwerks Internet Solutions, LLC	•
ddns.net	• nf1.no-ip.com / f0202.ams.hv.as29997.net	194.62.182.53 City of London/England/United Kingdom (GB) - ARTEC	•
	•	2a07:dc00:1820::53 Amsterdam/North Holland/Netherlands (NL) - Vitalwerks Internet Solutions, LLC	•
	• nf2.no-ip.com / f0201.ams.hv.as29997.net	45.54.64.53 Reno/Nevada/United States (US) - Vitalwerks Internet Solutions, LLC	•
	•	2607:f740:e626::53 Reno/Nevada/United States (US) - Vitalwerks Internet Solutions, LLC	•
	• nf3.no-ip.com / f0201.fra.vr.as29997.net	204.16.253.53 New York/United States (US) - Vitalwerks Internet Solutions, LLC	•
	•	2620:0:2e61::53 Piscataway/New Jersey/United States (US) - Vitalwerks Internet Solutions, LLC	•
	• nf4.no-ip.com / localhost	194.62.183.53 Amsterdam/North Holland/Netherlands (NL) - Vitalwerks Internet Solutions, LLC	•
	•	2a07:dc00:1830::53 Amsterdam/North Holland/Netherlands (NL) - Vitalwerks Internet Solutions, LLC	•
	• nf5.no-ip.com / f0201.per.sw.as29997.net	204.16.253.53 New York/United States (US) - Vitalwerks Internet Solutions, LLC	•
	•	2620:0:2e61::53 Piscataway/New Jersey/United States (US) - Vitalwerks Internet Solutions, LLC	•
net	• a.gtld-servers.net		•
	• b.gtld-servers.net		•
	• c.gtld-servers.net		•
	• d.gtld-servers.net		•
	• e.gtld-servers.net		•
	• f.gtld-servers.net		•
	• g.gtld-servers.net		•
	• h.gtld-servers.net		•
	• i.gtld-servers.net		•
	• j.gtld-servers.net		•
	• k.gtld-servers.net		•
	• l.gtld-servers.net		•
	• m.gtld-servers.net		•

4. SOA-Entries

Domain:	net
Zone-Name:	net
Primary:	a.gtld-servers.net
Mail:	nstld.verisign-grs.com
Serial:	1596567863
Refresh:	1800
Retry:	900
Expire:	604800
TTL:	86400
num Entries:	13

Domain:	ddns.net
Zone-Name:	ddns.net
Primary:	nf1.no-ip.com
Mail:	hostmaster.no-ip.com
Serial:	2325647116
Refresh:	10800
Retry:	1800
Expire:	604800
TTL:	1800
num Entries:	8

Domain:	ddns.net
Zone-Name:	ddns.net
Primary:	nf1.no-ip.com
Mail:	hostmaster.no-ip.com
Serial:	2325647116
Refresh:	10800
Retry:	1800
Expire:	604800
TTL:	1800
num Entries:	8

Domain:	ddns.net
Zone-Name:	ddns.net
Primary:	nf1.no-ip.com
Mail:	hostmaster.no-ip.com
Serial:	2325647118
Refresh:	10800
Retry:	1800
Expire:	604800
TTL:	1800
num Entries:	1

Domain:	ddns.net
Zone-Name:	ddns.net
Primary:	nf1.no-ip.com
Mail:	hostmaster.no-ip.com
Serial:	2325647118
Refresh:	10800
Retry:	1800
Expire:	604800
TTL:	1800
num Entries:	1

Domain:	ddns.net
Zone-Name:	ddns.net
Primary:	nf1.no-ip.com
Mail:	hostmaster.no-ip.com
Serial:	2325647160
Refresh:	10800
Retry:	1800
Expire:	604800
TTL:	1800
num Entries:	1

Domain:	ddns.net
Zone-Name:	ddns.net
Primary:	nf1.no-ip.com
Mail:	hostmaster.no-ip.com
Serial:	2325647160
Refresh:	10800
Retry:	1800
Expire:	604800
TTL:	1800
num Entries:	1

Domain:	scorpioclan.ddns.net
Zone-Name:	ddns.net
Primary:	nf1.no-ip.com
Mail:	hostmaster.no-ip.com
Serial:	2325647160
Refresh:	10800
Retry:	1800
Expire:	604800
TTL:	1800
num Entries:	2

Domain:	www.scorpioclan.ddns.net
Zone-Name:
Primary:
Mail:
Serial:
Refresh:
Retry:
Expire:
TTL:
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

show header:

Domainname	Http-Status	redirect	Sec.	G
• http://scorpioclan.ddns.net/ 80.137.56.231	-14		10.026	T
Timeout - The operation has timed out

• http://scorpioclan.ddns.net/index.php?page=allow	-14		10.043	T
Timeout - The operation has timed out

• https://scorpioclan.ddns.net/ 80.137.56.231	-4		0.116	W
SendFailure - The underlying connection was closed: An unexpected error occurred on a send.

• http://scorpioclan.ddns.net:443/ 80.137.56.231	302	http://scorpioclan.ddns.net/index.php?page=allow Html is minified: 109.85 %	0.076	Q
Visible Content:
Date: Tue, 04 Aug 2020 19:06:03 GMT
Server: Apache/2.4.38 (Raspbian)
Set-Cookie: PHPSESSID=r75l9hns3vr2rec387b6oje73d; path=/
Expires: Thu, 19 Nov 1981 08:52:00 GMT
Cache-Control: no-store, no-cache, must-revalidate
Pragma: no-cache
location: /index.php?page=allow
Content-Length: 1071
Connection: close
Content-Type: text/html; charset=UTF-8

• http://scorpioclan.ddns.net/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de 80.137.56.231	-14		10.023	T
Timeout - The operation has timed out
Visible Content:

• https://80.137.56.231/ 80.137.56.231	-4		0.093	W
SendFailure - The underlying connection was closed: An unexpected error occurred on a send.

7. Comments

	1. General Results, most used to calculate the result
A	name "scorpioclan.ddns.net" is domain, public suffix is ".ddns.net", top-level-domain is ".net", top-level-domain-type is "generic", tld-manager is "VeriSign Global Registry Services", num .net-domains preloaded: 5774 (complete: 128404)
A	Good: All ip addresses are public addresses
	Warning: Only one ip address found: scorpioclan.ddns.net has only one ip address.
	Warning: No ipv6 address found. Ipv6 is the future with a lot of new features. So every domain name should have an ipv6 address. See https://en.wikipedia.org/wiki/IPv6: scorpioclan.ddns.net has no ipv6 address.
A	Good: No asked Authoritative Name Server had a timeout
A	DNS: "Name Error" means: No www-dns-entry defined. This isn't a problem
	HSTS-Preload-Status: unknown. Domain never included in the Preload-list. Check https://hstspreload.org/ to learn some basics about the Google-Preload-List.
	http://scorpioclan.ddns.net:443/ 80.137.56.231	302	PHPSESSID=r75l9hns3vr2rec387b6oje73d; path=/	Fatal: Cookie sent via http. Never send Cookies / Session-Cookies via http. If a user uses an insecure WLan and if the same cookie is used to managed the authenticated session, it's possible to hack that user. Same with HttpOnly - without https that's only decorative.
B	http://scorpioclan.ddns.net:443/ 80.137.56.231	302	PHPSESSID=r75l9hns3vr2rec387b6oje73d; path=/	Cookie without a SameSite-Attribute. Possible values are: Strict/Lax/None. Cookie may not work as expected, if "None" is wanted, but browsers use "Lax" as default value.
C	Error - no version with Http-Status 200
H	Fatal error: No https - result with http-status 200, no encryption
Q	http://scorpioclan.ddns.net:443/ 80.137.56.231	302	http://scorpioclan.ddns.net/index.php?page=allow	Misconfiguration: http sent over port 443. Wrong port forwarding port 443 to port 80 or wrong vHost definition. If you use a virtual Host <VirtualHost ip-address:443>, try <VirtualHost *:443>.
	Info: Checking the ip addresses of that domain name not exact one certificate found. So it's impossible to check if that domain requires Server Name Indication (SNI).: Domain scorpioclan.ddns.net, 1 ip addresses.
	2. Header-Checks
	3. DNS- and NameServer - Checks
A	Info:: 16 Root-climbing DNS Queries required to find all IPv4- and IPv6-Addresses of 5 Name Servers.
A	Info:: 16 Queries complete, 16 with IPv6, 0 with IPv4.
A	Good: All DNS Queries done via IPv6.
	Ok (4 - 8):: An average of 3.2 queries per domain name server required to find all ip addresses of all name servers.
A	Info:: 5 different Name Servers found: nf1.no-ip.com, nf2.no-ip.com, nf3.no-ip.com, nf4.no-ip.com, nf5.no-ip.com, 4 Name Servers included in Delegation: nf1.no-ip.com, nf2.no-ip.com, nf3.no-ip.com, nf4.no-ip.com, 5 Name Servers included in 1 Zone definitions: nf1.no-ip.com, nf2.no-ip.com, nf3.no-ip.com, nf4.no-ip.com, nf5.no-ip.com, 1 Name Servers listed in SOA.Primary: nf1.no-ip.com.
A	Good: Only one SOA.Primary Name Server found.: nf1.no-ip.com.
A	Good: SOA.Primary Name Server included in the delegation set.: nf1.no-ip.com.
X	Fatal: Inconsistency 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. Read https://www.iana.org/help/nameserver-requirements and send it to your Name Server Hoster.: nf1.no-ip.com (194.62.182.53): Delegation: nf1.no-ip.com, nf2.no-ip.com, nf3.no-ip.com, nf4.no-ip.com, Zone: nf1.no-ip.com, nf2.no-ip.com, nf3.no-ip.com, nf4.no-ip.com, nf5.no-ip.com. Name Servers defined in Zone, missing in Delegation: nf5.no-ip.com.
X	Fatal: Inconsistency 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. Read https://www.iana.org/help/nameserver-requirements and send it to your Name Server Hoster.: nf1.no-ip.com (2a07:dc00:1820::53): Delegation: nf1.no-ip.com, nf2.no-ip.com, nf3.no-ip.com, nf4.no-ip.com, Zone: nf1.no-ip.com, nf2.no-ip.com, nf3.no-ip.com, nf4.no-ip.com, nf5.no-ip.com. Name Servers defined in Zone, missing in Delegation: nf5.no-ip.com.
X	Fatal: Inconsistency 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. Read https://www.iana.org/help/nameserver-requirements and send it to your Name Server Hoster.: nf2.no-ip.com (45.54.64.53): Delegation: nf1.no-ip.com, nf2.no-ip.com, nf3.no-ip.com, nf4.no-ip.com, Zone: nf1.no-ip.com, nf2.no-ip.com, nf3.no-ip.com, nf4.no-ip.com, nf5.no-ip.com. Name Servers defined in Zone, missing in Delegation: nf5.no-ip.com.
X	Fatal: Inconsistency 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. Read https://www.iana.org/help/nameserver-requirements and send it to your Name Server Hoster.: nf2.no-ip.com (2607:f740:e626::53): Delegation: nf1.no-ip.com, nf2.no-ip.com, nf3.no-ip.com, nf4.no-ip.com, Zone: nf1.no-ip.com, nf2.no-ip.com, nf3.no-ip.com, nf4.no-ip.com, nf5.no-ip.com. Name Servers defined in Zone, missing in Delegation: nf5.no-ip.com.
X	Fatal: Inconsistency 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. Read https://www.iana.org/help/nameserver-requirements and send it to your Name Server Hoster.: nf3.no-ip.com (204.16.253.53): Delegation: nf1.no-ip.com, nf2.no-ip.com, nf3.no-ip.com, nf4.no-ip.com, Zone: nf1.no-ip.com, nf2.no-ip.com, nf3.no-ip.com, nf4.no-ip.com, nf5.no-ip.com. Name Servers defined in Zone, missing in Delegation: nf5.no-ip.com.
X	Fatal: Inconsistency 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. Read https://www.iana.org/help/nameserver-requirements and send it to your Name Server Hoster.: nf3.no-ip.com (2620:0:2e61::53): Delegation: nf1.no-ip.com, nf2.no-ip.com, nf3.no-ip.com, nf4.no-ip.com, Zone: nf1.no-ip.com, nf2.no-ip.com, nf3.no-ip.com, nf4.no-ip.com, nf5.no-ip.com. Name Servers defined in Zone, missing in Delegation: nf5.no-ip.com.
X	Fatal: Inconsistency 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. Read https://www.iana.org/help/nameserver-requirements and send it to your Name Server Hoster.: nf4.no-ip.com (194.62.183.53): Delegation: nf1.no-ip.com, nf2.no-ip.com, nf3.no-ip.com, nf4.no-ip.com, Zone: nf1.no-ip.com, nf2.no-ip.com, nf3.no-ip.com, nf4.no-ip.com, nf5.no-ip.com. Name Servers defined in Zone, missing in Delegation: nf5.no-ip.com.
X	Fatal: Inconsistency 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. Read https://www.iana.org/help/nameserver-requirements and send it to your Name Server Hoster.: nf4.no-ip.com (2a07:dc00:1830::53): Delegation: nf1.no-ip.com, nf2.no-ip.com, nf3.no-ip.com, nf4.no-ip.com, Zone: nf1.no-ip.com, nf2.no-ip.com, nf3.no-ip.com, nf4.no-ip.com, nf5.no-ip.com. Name Servers defined in Zone, missing in Delegation: nf5.no-ip.com.
X	Fatal: Inconsistency 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. Read https://www.iana.org/help/nameserver-requirements and send it to your Name Server Hoster.: nf5.no-ip.com (204.16.253.53): Delegation: nf1.no-ip.com, nf2.no-ip.com, nf3.no-ip.com, nf4.no-ip.com, Zone: nf1.no-ip.com, nf2.no-ip.com, nf3.no-ip.com, nf4.no-ip.com, nf5.no-ip.com. Name Servers defined in Zone, missing in Delegation: nf5.no-ip.com.
X	Fatal: Inconsistency 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. Read https://www.iana.org/help/nameserver-requirements and send it to your Name Server Hoster.: nf5.no-ip.com (2620:0:2e61::53): Delegation: nf1.no-ip.com, nf2.no-ip.com, nf3.no-ip.com, nf4.no-ip.com, Zone: nf1.no-ip.com, nf2.no-ip.com, nf3.no-ip.com, nf4.no-ip.com, nf5.no-ip.com. Name Servers defined in Zone, missing in Delegation: nf5.no-ip.com.
A	Good: All Name Server Domain Names have a Public Suffix.
A	Good: All Name Server Domain Names ending with a Public Suffix have minimal one IPv4- or IPv6 address.
A	Good: All Name Server ip addresses are public.
A	Good: Minimal 2 different name servers (public suffix and public ip address) found: 5 different Name Servers found
A	Good: All name servers have ipv4- and ipv6-addresses.: 5 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.: 5 Name Servers, 1 Top Level Domain: com
	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: no-ip.com
A	Good: Name servers with different Country locations found: 5 Name Servers, 3 Countries: GB, NL, US
A	Info: Ipv4-Subnet-list: 5 Name Servers, 3 different subnets (first Byte): 194., 204., 45., 3 different subnets (first two Bytes): 194.62., 204.16., 45.54., 4 different subnets (first three Bytes): 194.62.182., 194.62.183., 204.16.253., 45.54.64.
A	Good: Name Server IPv4-addresses from different subnet found:
A	Info: IPv6-Subnet-list: 5 Name Servers with IPv6, 3 different subnets (first block): 2607:, 2620:, 2a07:, 3 different subnets (first two blocks): 2607:f740:, 2620:0000:, 2a07:dc00:, 4 different subnets (first three blocks): 2607:f740:e626:, 2620:0000:2e61:, 2a07:dc00:1820:, 2a07:dc00:1830:, 4 different subnets (first four blocks): 2607:f740:e626:0000:, 2620:0000:2e61:0000:, 2a07:dc00:1820:0000:, 2a07:dc00:1830:0000:
A	Good: Name Server IPv6 addresses from different subnets found.
A	Good: Nameserver supports TCP connections: 2 good Nameserver
A	Good: Nameserver supports Echo Capitalization: 2 good Nameserver
A	Good: Nameserver supports EDNS with max. 512 Byte Udp payload, message is smaller: 2 good Nameserver
A	Good: Nameserver has passed 10 EDNS-Checks (OP100, FLAGS, V1, V1OP100, V1FLAGS, DNSSEC, V1DNSSEC, NSID, COOKIE, CLIENTSUBNET): 2 good Nameserver
	Nameserver doesn't pass all EDNS-Checks: nf1.no-ip.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.
A	Good: 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.
	4. Content- and Performance-critical Checks
	http://scorpioclan.ddns.net/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de 80.137.56.231	-14		Fatal: Check of /.well-known/acme-challenge/random-filename has a timeout. Creating a Letsencrypt certificate via http-01 challenge can't work. You need a running webserver (http) and an open port 80. If it's a home server + ipv4, perhaps a correct port forwarding port 80 extern ⇒ working port intern is required. Port 80 / http can redirect to another domain port 80 or port 443, but not other ports. If it's a home server, perhaps your ISP blocks port 80. Then you may use the dns-01 challenge. Trouble creating a certificate? Use https://community.letsencrypt.org/ to ask.
A	Info: No img element found, no alt attribute checked
A	Good: 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
A	Duration: 101760 milliseconds, 101.760 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" > of the last months are listed

Small Code Update - wait one minute

11. Html-Content - Entries

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

12. Html-Parsing via https://validator.w3.org/nu/

Small Code update, wait one minute

13. Nameserver - IP-Adresses

Required Root-climbing DNS-Queries to find ip addresses of all Name Servers: nf1.no-ip.com, nf2.no-ip.com, nf3.no-ip.com, nf4.no-ip.com, nf5.no-ip.com

QNr.	Domain	Type	NS used
1	com	NS	k.root-servers.net (2001:7fd::1)
	Answer: a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net, e.gtld-servers.net, f.gtld-servers.net, g.gtld-servers.net, h.gtld-servers.net, i.gtld-servers.net, j.gtld-servers.net, k.gtld-servers.net, l.gtld-servers.net, m.gtld-servers.net
2	nf1.no-ip.com	NS	e.gtld-servers.net (2001:502:1ca1::30)
	Answer: ns1.no-ip.com, ns2.no-ip.com, ns3.no-ip.com, ns4.no-ip.com
	Answer: ns1.no-ip.com 194.62.181.53, 2a07:dc00:1810::53
	Answer: ns2.no-ip.com 194.62.180.53, 2a07:dc00:180::53
	Answer: ns3.no-ip.com 204.16.255.53, 2a07:dc00:2550::53
	Answer: ns4.no-ip.com 204.16.254.53, 2620:0:2e64::53
3	nf2.no-ip.com	NS	e.gtld-servers.net (2001:502:1ca1::30)
	Answer: ns1.no-ip.com, ns2.no-ip.com, ns3.no-ip.com, ns4.no-ip.com
	Answer: ns1.no-ip.com 194.62.181.53, 2a07:dc00:1810::53
	Answer: ns2.no-ip.com 194.62.180.53, 2a07:dc00:180::53
	Answer: ns3.no-ip.com 204.16.255.53, 2a07:dc00:2550::53
	Answer: ns4.no-ip.com 204.16.254.53, 2620:0:2e64::53
4	nf3.no-ip.com	NS	e.gtld-servers.net (2001:502:1ca1::30)
	Answer: ns1.no-ip.com, ns2.no-ip.com, ns3.no-ip.com, ns4.no-ip.com
	Answer: ns1.no-ip.com 194.62.181.53, 2a07:dc00:1810::53
	Answer: ns2.no-ip.com 194.62.180.53, 2a07:dc00:180::53
	Answer: ns3.no-ip.com 204.16.255.53, 2a07:dc00:2550::53
	Answer: ns4.no-ip.com 204.16.254.53, 2620:0:2e64::53
5	nf4.no-ip.com	NS	e.gtld-servers.net (2001:502:1ca1::30)
	Answer: ns1.no-ip.com, ns2.no-ip.com, ns3.no-ip.com, ns4.no-ip.com
	Answer: ns1.no-ip.com 194.62.181.53, 2a07:dc00:1810::53
	Answer: ns2.no-ip.com 194.62.180.53, 2a07:dc00:180::53
	Answer: ns3.no-ip.com 204.16.255.53, 2a07:dc00:2550::53
	Answer: ns4.no-ip.com 204.16.254.53, 2620:0:2e64::53
6	nf5.no-ip.com	NS	e.gtld-servers.net (2001:502:1ca1::30)
	Answer: ns1.no-ip.com, ns2.no-ip.com, ns3.no-ip.com, ns4.no-ip.com
	Answer: ns1.no-ip.com 194.62.181.53, 2a07:dc00:1810::53
	Answer: ns2.no-ip.com 194.62.180.53, 2a07:dc00:180::53
	Answer: ns3.no-ip.com 204.16.255.53, 2a07:dc00:2550::53
	Answer: ns4.no-ip.com 204.16.254.53, 2620:0:2e64::53
7	nf1.no-ip.com: 194.62.182.53	A	ns1.no-ip.com (2a07:dc00:1810::53)
8	nf1.no-ip.com: 2a07:dc00:1820::53	AAAA	ns1.no-ip.com (2a07:dc00:1810::53)
9	nf2.no-ip.com: 45.54.64.53	A	ns1.no-ip.com (2a07:dc00:1810::53)
10	nf2.no-ip.com: 2607:f740:e626::53	AAAA	ns1.no-ip.com (2a07:dc00:1810::53)
11	nf3.no-ip.com: 204.16.253.53	A	ns1.no-ip.com (2a07:dc00:1810::53)
12	nf3.no-ip.com: 2620:0:2e61::53	AAAA	ns1.no-ip.com (2a07:dc00:1810::53)
13	nf4.no-ip.com: 194.62.183.53	A	ns1.no-ip.com (2a07:dc00:1810::53)
14	nf4.no-ip.com: 2a07:dc00:1830::53	AAAA	ns1.no-ip.com (2a07:dc00:1810::53)
15	nf5.no-ip.com: 204.16.253.53	A	ns1.no-ip.com (2a07:dc00:1810::53)
16	nf5.no-ip.com: 2620:0:2e61::53	AAAA	ns1.no-ip.com (2a07:dc00:1810::53)

14. CAA - Entries

Domainname	Value	∑ Queries
scorpioclan.ddns.net	no CAA entry found	1
ddns.net	no CAA entry found	1
net	no CAA entry found	1

15. TXT - Entries

Domainname	Status	∑ Queries
scorpioclan.ddns.net	ok	1
_acme-challenge.scorpioclan.ddns.net	Name Error - The domain name does not exist	1
_acme-challenge.scorpioclan.ddns.net.scorpioclan.ddns.net	Name Error - The domain name does not exist	1

16. DomainService - Entries

No DomainServiceEntries entries found

17. Cipher Suites

No Ciphers found

18. Portchecks

Domain	IP	Port	Description
scorpioclan.ddns.net	80.137.56.231	21	FTP

scorpioclan.ddns.net	80.137.56.231	21	FTP
scorpioclan.ddns.net	80.137.56.231	22	SSH

scorpioclan.ddns.net	80.137.56.231	22	SSH
scorpioclan.ddns.net	80.137.56.231	25	SMTP

scorpioclan.ddns.net	80.137.56.231	25	SMTP
scorpioclan.ddns.net	80.137.56.231	53	DNS

scorpioclan.ddns.net	80.137.56.231	53	DNS
scorpioclan.ddns.net	80.137.56.231	110	POP3

scorpioclan.ddns.net	80.137.56.231	110	POP3
scorpioclan.ddns.net	80.137.56.231	143	IMAP

scorpioclan.ddns.net	80.137.56.231	143	IMAP
scorpioclan.ddns.net	80.137.56.231	465	SMTP (encrypted)

scorpioclan.ddns.net	80.137.56.231	465	SMTP (encrypted)
scorpioclan.ddns.net	80.137.56.231	587	SMTP (encrypted, submission)

scorpioclan.ddns.net	80.137.56.231	587	SMTP (encrypted, submission)
scorpioclan.ddns.net	80.137.56.231	993	IMAP (encrypted)

scorpioclan.ddns.net	80.137.56.231	993	IMAP (encrypted)
scorpioclan.ddns.net	80.137.56.231	995	POP3 (encrypted)

scorpioclan.ddns.net	80.137.56.231	995	POP3 (encrypted)
scorpioclan.ddns.net	80.137.56.231	1433	MS SQL

scorpioclan.ddns.net	80.137.56.231	1433	MS SQL
scorpioclan.ddns.net	80.137.56.231	2082	cPanel (http)

scorpioclan.ddns.net	80.137.56.231	2082	cPanel (http)
scorpioclan.ddns.net	80.137.56.231	2083	cPanel (https)

scorpioclan.ddns.net	80.137.56.231	2083	cPanel (https)
scorpioclan.ddns.net	80.137.56.231	2086	WHM (http)

scorpioclan.ddns.net	80.137.56.231	2086	WHM (http)
scorpioclan.ddns.net	80.137.56.231	2087	WHM (https)

scorpioclan.ddns.net	80.137.56.231	2087	WHM (https)
scorpioclan.ddns.net	80.137.56.231	2089	cPanel Licensing

scorpioclan.ddns.net	80.137.56.231	2089	cPanel Licensing
scorpioclan.ddns.net	80.137.56.231	2095	cPanel Webmail (http)

scorpioclan.ddns.net	80.137.56.231	2095	cPanel Webmail (http)
scorpioclan.ddns.net	80.137.56.231	2096	cPanel Webmail (https)

scorpioclan.ddns.net	80.137.56.231	2096	cPanel Webmail (https)
scorpioclan.ddns.net	80.137.56.231	2222	DirectAdmin (http)

scorpioclan.ddns.net	80.137.56.231	2222	DirectAdmin (http)
scorpioclan.ddns.net	80.137.56.231	2222	DirectAdmin (https)

scorpioclan.ddns.net	80.137.56.231	2222	DirectAdmin (https)
scorpioclan.ddns.net	80.137.56.231	3306	mySql

scorpioclan.ddns.net	80.137.56.231	3306	mySql
scorpioclan.ddns.net	80.137.56.231	5224	Plesk Licensing

scorpioclan.ddns.net	80.137.56.231	5224	Plesk Licensing
scorpioclan.ddns.net	80.137.56.231	5432	PostgreSQL

scorpioclan.ddns.net	80.137.56.231	5432	PostgreSQL
scorpioclan.ddns.net	80.137.56.231	8080	Ookla Speedtest (http)

scorpioclan.ddns.net	80.137.56.231	8080	Ookla Speedtest (http)
scorpioclan.ddns.net	80.137.56.231	8080	Ookla Speedtest (https)

scorpioclan.ddns.net	80.137.56.231	8080	Ookla Speedtest (https)
scorpioclan.ddns.net	80.137.56.231	8083	VestaCP http

scorpioclan.ddns.net	80.137.56.231	8083	VestaCP http
scorpioclan.ddns.net	80.137.56.231	8083	VestaCP https

scorpioclan.ddns.net	80.137.56.231	8083	VestaCP https
scorpioclan.ddns.net	80.137.56.231	8443	Plesk Administration (https)

scorpioclan.ddns.net	80.137.56.231	8443	Plesk Administration (https)
scorpioclan.ddns.net	80.137.56.231	8447	Plesk Installer + Updates

scorpioclan.ddns.net	80.137.56.231	8447	Plesk Installer + Updates
scorpioclan.ddns.net	80.137.56.231	8880	Plesk Administration (http)

scorpioclan.ddns.net	80.137.56.231	8880	Plesk Administration (http)
scorpioclan.ddns.net	80.137.56.231	10000	Webmin (http)

scorpioclan.ddns.net	80.137.56.231	10000	Webmin (http)
scorpioclan.ddns.net	80.137.56.231	10000	Webmin (https)

scorpioclan.ddns.net	80.137.56.231	10000	Webmin (https)

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