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



X

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

Checked:
08.04.2021 01:46:14


Older results


1. IP-Addresses

HostTypeIP-Addressis auth.∑ Queries∑ Timeout
telem2.cure.edu.uy
A
164.73.226.12
Montevideo/Departamento de Montevideo/Uruguay (UY) - Uruguay
Hostname: telem2.cure.edu.uy
yes
1
0

AAAA

yes


www.telem2.cure.edu.uy

Name Error
yes
1
0
*.cure.edu.uy
A
Name Error
yes



AAAA
Name Error
yes



CNAME
Name Error
yes


*.telem2.cure.edu.uy
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



3 DNSKEY RR found



Public Key with Algorithm 8, KeyTag 14631, Flags 256



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



Public Key with Algorithm 8, KeyTag 42351, Flags 256



1 RRSIG RR to validate DNSKEY RR found



RRSIG-Owner (root), Algorithm: 8, 0 Labels, original TTL: 172800 sec, Signature-expiration: 22.04.2021, 00:00:00 +, Signature-Inception: 01.04.2021, 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: uy
uy
1 DS RR in the parent zone found



DS with Algorithm 8, KeyTag 19730, DigestType 2 and Digest 6FoInWn4ac+SPfOV8nnxySvRNqM7YJiHSLAYbhL3uI4=



1 RRSIG RR to validate DS RR found



RRSIG-Owner uy., Algorithm: 8, 1 Labels, original TTL: 86400 sec, Signature-expiration: 20.04.2021, 17:00:00 +, Signature-Inception: 07.04.2021, 16:00:00 +, KeyTag 14631, Signer-Name: (root)



Status: Good - Algorithmus 8 and DNSKEY with KeyTag 14631 used to validate the DS RRSet in the parent zone



3 DNSKEY RR found



Public Key with Algorithm 8, KeyTag 3595, Flags 256



Public Key with Algorithm 8, KeyTag 19730, Flags 257 (SEP = Secure Entry Point)



Public Key with Algorithm 8, KeyTag 60279, Flags 256



2 RRSIG RR to validate DNSKEY RR found



RRSIG-Owner uy., Algorithm: 8, 1 Labels, original TTL: 86400 sec, Signature-expiration: 16.08.2021, 00:00:00 +, Signature-Inception: 17.02.2021, 00:00:00 +, KeyTag 19730, Signer-Name: uy



RRSIG-Owner uy., Algorithm: 8, 1 Labels, original TTL: 86400 sec, Signature-expiration: 07.05.2021, 22:35:56 +, Signature-Inception: 07.04.2021, 22:36:01 +, KeyTag 60279, Signer-Name: uy



Status: Good - Algorithmus 8 and DNSKEY with KeyTag 19730 used to validate the DNSKEY RRSet



Status: Good - Algorithmus 8 and DNSKEY with KeyTag 60279 used to validate the DNSKEY RRSet



Status: Valid Chain of trust. Parent-DS with Algorithm 8, KeyTag 19730, DigestType 2 and Digest "6FoInWn4ac+SPfOV8nnxySvRNqM7YJiHSLAYbhL3uI4=" validates local Key with the same values, Key ist Secure Entry Point (SEP) of the zone

Zone: edu.uy
edu.uy
2 DS RR in the parent zone found



DS with Algorithm 8, KeyTag 29392, DigestType 1 and Digest PkdeVLWleavl+zod14uUKxsBD7U=



DS with Algorithm 8, KeyTag 29392, DigestType 2 and Digest YmH96D50HdgQP1Mg6Pwx81Vzbp5BbHi32AbemazncBE=



1 RRSIG RR to validate DS RR found



RRSIG-Owner edu.uy., Algorithm: 8, 2 Labels, original TTL: 86400 sec, Signature-expiration: 07.05.2021, 22:35:53 +, Signature-Inception: 07.04.2021, 22:36:01 +, KeyTag 60279, Signer-Name: uy



Status: Good - Algorithmus 8 and DNSKEY with KeyTag 60279 used to validate the DS RRSet in the parent zone



3 DNSKEY RR found



Public Key with Algorithm 8, KeyTag 16195, Flags 256



Public Key with Algorithm 8, KeyTag 29392, Flags 257 (SEP = Secure Entry Point)



Public Key with Algorithm 8, KeyTag 39004, Flags 256



2 RRSIG RR to validate DNSKEY RR found



RRSIG-Owner edu.uy., Algorithm: 8, 2 Labels, original TTL: 86400 sec, Signature-expiration: 16.08.2021, 00:00:00 +, Signature-Inception: 17.02.2021, 00:00:00 +, KeyTag 29392, Signer-Name: edu.uy



RRSIG-Owner edu.uy., Algorithm: 8, 2 Labels, original TTL: 86400 sec, Signature-expiration: 07.05.2021, 02:08:52 +, Signature-Inception: 07.04.2021, 02:09:01 +, KeyTag 39004, Signer-Name: edu.uy



Status: Good - Algorithmus 8 and DNSKEY with KeyTag 29392 used to validate the DNSKEY RRSet



Status: Good - Algorithmus 8 and DNSKEY with KeyTag 39004 used to validate the DNSKEY RRSet



Status: Valid Chain of trust. Parent-DS with Algorithm 8, KeyTag 29392, DigestType 1 and Digest "PkdeVLWleavl+zod14uUKxsBD7U=" 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 8, KeyTag 29392, DigestType 2 and Digest "YmH96D50HdgQP1Mg6Pwx81Vzbp5BbHi32AbemazncBE=" validates local Key with the same values, Key ist Secure Entry Point (SEP) of the zone

Zone: cure.edu.uy
cure.edu.uy
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 "f8e4473ha0dsl0bkl0d7ntlclk0oa8b9" between the hashed NSEC3-owner "eq65qlacqjv2u8373d8fj1h5nmhem4u7" and the hashed NextOwner "r6p1sf5bu219thjn60trci5is9uqcbv9". So the parent zone confirmes the not-existence of a DS RR.
Bitmap: NS, DS, RRSIG Validated: RRSIG-Owner eq65qlacqjv2u8373d8fj1h5nmhem4u7.edu.uy., Algorithm: 8, 3 Labels, original TTL: 1200 sec, Signature-expiration: 07.05.2021, 02:09:01 +, Signature-Inception: 07.04.2021, 02:09:01 +, KeyTag 39004, Signer-Name: edu.uy



DS-Query in the parent zone sends valid NSEC3 RR with the Hash "r6p1sf5bu219thjn60trci5is9uqcbv9" as Owner. That's the Hash of "edu.uy" with the NextHashedOwnerName "ufv66ml2k05tfsg8hrrcv85a9k3k10tm". So that domain name is the Closest Encloser of "cure.edu.uy". Opt-Out: True.
Bitmap: NS, SOA, RRSIG, DNSKEY, NSEC3PARAM Validated: RRSIG-Owner r6p1sf5bu219thjn60trci5is9uqcbv9.edu.uy., Algorithm: 8, 3 Labels, original TTL: 1200 sec, Signature-expiration: 07.05.2021, 02:08:58 +, Signature-Inception: 07.04.2021, 02:09:01 +, KeyTag 39004, Signer-Name: edu.uy



The ClosestEncloser says, that "*.edu.uy" with the Hash "eulrtgn473k0c9v8rdp7gg146q28u3ol" is a possible Wildcard of the DS Query Name. But the DS-Query in the parent zone sends a valid NSEC3 RR With the owner "eq65qlacqjv2u8373d8fj1h5nmhem4u7" and the Next Owner "r6p1sf5bu219thjn60trci5is9uqcbv9", so the Hash of the wildcard is between these hashes. So that NSEC3 proves the Not-existence of that wildcard expansion. Opt-Out: True
Bitmap: NS, DS, RRSIG Validated: RRSIG-Owner eq65qlacqjv2u8373d8fj1h5nmhem4u7.edu.uy., Algorithm: 8, 3 Labels, original TTL: 1200 sec, Signature-expiration: 07.05.2021, 02:09:01 +, Signature-Inception: 07.04.2021, 02:09:01 +, KeyTag 39004, Signer-Name: edu.uy



0 DNSKEY RR found




Zone: telem2.cure.edu.uy
telem2.cure.edu.uy
0 DS RR in the parent zone found



0 DNSKEY RR found




Zone: www.telem2.cure.edu.uy
www.telem2.cure.edu.uy
0 DS RR in the parent zone found


3. Name Servers

DomainNameserverNS-IP
www.telem2.cure.edu.uy
  massera.csic.edu.uy

telem2.cure.edu.uy
  massera.csic.edu.uy
164.73.68.7
Montevideo/Departamento de Montevideo/Uruguay (UY) - Uruguay


T 
2001:1328:2c:a::7
Montevideo/Departamento de Montevideo/Uruguay (UY) - Uruguay

cure.edu.uy
  anaconda.cure.edu.uy
164.73.227.7
Montevideo/Departamento de Montevideo/Uruguay (UY) - Uruguay


 
2001:1328:56::7
Montevideo/Departamento de Montevideo/Uruguay (UY) - Uruguay


  massera.csic.edu.uy
164.73.68.7
Montevideo/Departamento de Montevideo/Uruguay (UY) - Uruguay


T 
2001:1328:2c:a::7
Montevideo/Departamento de Montevideo/Uruguay (UY) - Uruguay


  seciu.edu.uy
164.73.128.5
Montevideo/Departamento de Montevideo/Uruguay (UY) - Uruguay


 
2001:1328:6::5
Montevideo/Departamento de Montevideo/Uruguay (UY) - Uruguay

edu.uy
  a.lactld.org / a5-mvd
200.0.68.10
Montevideo/Departamento de Montevideo/Uruguay (UY) - Lactld - Latin American and Caribbean TLD Association


 
2801:14:a000::10
Montevideo/Departamento de Montevideo/Uruguay (UY) - Lactld - Latin American and Caribbean TLD Association


  ns.dns.br / ns.dns.br
200.160.0.5
Barueri/Sao Paulo/Brazil (BR) - NÔcleo de Inf. e Coord. do Ponto BR - NIC.BR


 
2001:12ff:0:a20::5
Barueri/Sao Paulo/Brazil (BR) - NÔcleo de Inf. e Coord. do Ponto BR - NIC.BR


  ns1.anteldata.com.uy
200.40.30.254
Canelones/Uruguay (UY) - Administracion Nacional de Telecomunicaciones


 
2800:a0:53:1001::1
Montevideo/Departamento de Montevideo/Uruguay (UY) - Administracion Nacional de Telecomunicaciones


  ns2.anteldata.com.uy
200.40.220.254
Centro/Departamento de Montevideo/Uruguay (UY) - Administracion Nacional de Telecomunicaciones


 
2800:a0:53:1002::1
Montevideo/Departamento de Montevideo/Uruguay (UY) - Administracion Nacional de Telecomunicaciones


X  ns3.nic.mx
200.33.111.1
Monterrey/Nuevo León/Mexico (MX) - Network Information Center México S.C.


  seciu.edu.uy
164.73.128.5
Montevideo/Departamento de Montevideo/Uruguay (UY) - Uruguay


 
2001:1328:6::5
Montevideo/Departamento de Montevideo/Uruguay (UY) - Uruguay


  ultra.edu.uy
164.73.128.70
Montevideo/Departamento de Montevideo/Uruguay (UY) - Uruguay

uy
  a.lactld.org / a5-mvd


  a.nic.uy


  b.nic.uy


  d.nic.uy / ns017b.app9.ams2.afilias-nst.info


  ns.dns.br / ns.dns.br


  ns1.anteldata.com.uy


  ns2.anteldata.com.uy


X  ns3.nic.mx


  seciu.edu.uy


4. SOA-Entries


Domain:uy
Zone-Name:
Primary:
Mail:
Serial:
Refresh:
Retry:
Expire:
TTL:
num Entries:1


Domain:uy
Zone-Name:uy
Primary:seciu.edu.uy
Mail:dns-adm.seciu.edu.uy
Serial:2021040740
Refresh:21600
Retry:10800
Expire:432000
TTL:1200
num Entries:8


Domain:edu.uy
Zone-Name:edu.uy
Primary:seciu.edu.uy
Mail:dns-adm.seciu.edu.uy
Serial:2021040703
Refresh:21600
Retry:10800
Expire:432000
TTL:1200
num Entries:12


Domain:cure.edu.uy
Zone-Name:
Primary:
Mail:
Serial:
Refresh:
Retry:
Expire:
TTL:
num Entries:1


Domain:cure.edu.uy
Zone-Name:cure.edu.uy
Primary:massera.csic.edu.uy
Mail:informatica.cci.edu.uy
Serial:2021040501
Refresh:86400
Retry:7200
Expire:3600000
TTL:3600
num Entries:5


Domain:telem2.cure.edu.uy
Zone-Name:
Primary:
Mail:
Serial:
Refresh:
Retry:
Expire:
TTL:
num Entries:1


Domain:telem2.cure.edu.uy
Zone-Name:cure.edu.uy
Primary:massera.csic.edu.uy
Mail:informatica.cci.edu.uy
Serial:2021040501
Refresh:86400
Retry:7200
Expire:3600000
TTL:3600
num Entries:1


Domain:www.telem2.cure.edu.uy
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

DomainnameHttp-StatusredirectSec.G
• http://telem2.cure.edu.uy/
164.73.226.12
-14

10.024
T
Timeout - The operation has timed out

• https://telem2.cure.edu.uy/
164.73.226.12
-14

10.027
T
Timeout - The operation has timed out

• http://telem2.cure.edu.uy/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
164.73.226.12
-14

10.010
T
Timeout - The operation has timed out
Visible Content:

• https://164.73.226.12/
164.73.226.12
-14

10.026
T
Timeout - The operation has timed out

7. Comments


1. General Results, most used to calculate the result

Aname "telem2.cure.edu.uy" is subdomain, public suffix is ".edu.uy", top-level-domain is ".uy", top-level-domain-type is "country-code", Country is Uruguay, tld-manager is "SeCIU - Universidad de la Republica", num .uy-domains preloaded: 24 (complete: 151507)
Agood: All ip addresses are public addresses
Warning: Only one ip address found: telem2.cure.edu.uy 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: telem2.cure.edu.uy has no ipv6 address.
Agood: No asked Authoritative Name Server had a timeout
ADNS: "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.
XFatal error: Nameserver doesn't support TCP connection: massera.csic.edu.uy / 2001:1328:2c:a::7: Timeout
XFatal error: Nameserver doesn't support TCP connection: ns3.nic.mx: Fatal error (-14). Details: Unable to read data from the transport connection: Eine vorhandene Verbindung wurde vom Remotehost geschlossen. - Eine vorhandene Verbindung wurde vom Remotehost geschlossen
XFatal error: Nameserver doesn't support TCP connection: ns3.nic.mx / 200.33.111.1: Fatal error (-14). Details: Unable to read data from the transport connection: Eine vorhandene Verbindung wurde vom Remotehost geschlossen. - Eine vorhandene Verbindung wurde vom Remotehost geschlossen
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 telem2.cure.edu.uy, 1 ip addresses.

2. DNS- and NameServer - Checks

AInfo:: 4 Root-climbing DNS Queries required to find all IPv4- and IPv6-Addresses of 3 Name Servers.
AInfo:: 4 Queries complete, 2 with IPv6, 2 with IPv4.
Warning: Only some DNS Queries done via ipv6. IPv6 is the future, so the name servers of your name servers should have ipv6 addresses.
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.massera.csic.edu.uy (164.73.68.7), seciu.edu.uy (164.73.128.5)
AGood (1 - 3.0):: An average of 1.3 queries per domain name server required to find all ip addresses of all name servers.
AInfo:: 3 different Name Servers found: anaconda.cure.edu.uy, massera.csic.edu.uy, seciu.edu.uy, 2 Name Servers included in Delegation: massera.csic.edu.uy, seciu.edu.uy, 3 Name Servers included in 1 Zone definitions: anaconda.cure.edu.uy, massera.csic.edu.uy, seciu.edu.uy, 1 Name Servers listed in SOA.Primary: massera.csic.edu.uy.
AGood: Only one SOA.Primary Name Server found.: massera.csic.edu.uy.
AGood: SOA.Primary Name Server included in the delegation set.: massera.csic.edu.uy.
XFatal: 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.: anaconda.cure.edu.uy (164.73.227.7): Delegation: massera.csic.edu.uy, seciu.edu.uy, Zone: anaconda.cure.edu.uy, massera.csic.edu.uy, seciu.edu.uy. Name Servers defined in Zone, missing in Delegation: anaconda.cure.edu.uy.
XFatal: 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.: anaconda.cure.edu.uy (2001:1328:56::7): Delegation: massera.csic.edu.uy, seciu.edu.uy, Zone: anaconda.cure.edu.uy, massera.csic.edu.uy, seciu.edu.uy. Name Servers defined in Zone, missing in Delegation: anaconda.cure.edu.uy.
XFatal: 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.: massera.csic.edu.uy (164.73.68.7): Delegation: massera.csic.edu.uy, seciu.edu.uy, Zone: anaconda.cure.edu.uy, massera.csic.edu.uy, seciu.edu.uy. Name Servers defined in Zone, missing in Delegation: anaconda.cure.edu.uy.
XFatal: 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.: massera.csic.edu.uy (2001:1328:2c:a::7): Delegation: massera.csic.edu.uy, seciu.edu.uy, Zone: anaconda.cure.edu.uy, massera.csic.edu.uy, seciu.edu.uy. Name Servers defined in Zone, missing in Delegation: anaconda.cure.edu.uy.
XFatal: 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.: seciu.edu.uy (164.73.128.5): Delegation: massera.csic.edu.uy, seciu.edu.uy, Zone: anaconda.cure.edu.uy, massera.csic.edu.uy, seciu.edu.uy. Name Servers defined in Zone, missing in Delegation: anaconda.cure.edu.uy.
XFatal: 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.: seciu.edu.uy (2001:1328:6::5): Delegation: massera.csic.edu.uy, seciu.edu.uy, Zone: anaconda.cure.edu.uy, massera.csic.edu.uy, seciu.edu.uy. Name Servers defined in Zone, missing in Delegation: anaconda.cure.edu.uy.
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
AGood: All name servers have ipv4- and ipv6-addresses.: 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: edu.uy
AGood: Name Servers with different domain names found.: 3 different Domains found
Warning: All Name Servers from the same Country / IP location.: 3 Name Servers, 1 Countries: UY
AInfo: Ipv4-Subnet-list: 3 Name Servers, 1 different subnets (first Byte): 164., 1 different subnets (first two Bytes): 164.73., 3 different subnets (first three Bytes): 164.73.128., 164.73.227., 164.73.68.
AGood: Name Server IPv4-addresses from different subnet found:
AInfo: IPv6-Subnet-list: 3 Name Servers with IPv6, 1 different subnets (first block): 2001:, 1 different subnets (first two blocks): 2001:1328:, 3 different subnets (first three blocks): 2001:1328:0006:, 2001:1328:002c:, 2001:1328:0056:, 3 different subnets (first four blocks): 2001:1328:0006:0000:, 2001:1328:002c:000a:, 2001:1328:0056:0000:
AGood: Name Server IPv6 addresses from different subnets found.
XNameserver Timeout checking Echo Capitalization: massera.csic.edu.uy / 2001:1328:2c:a::7
XNameserver Timeout checking EDNS512: massera.csic.edu.uy / 2001:1328:2c:a::7
Nameserver doesn't pass all EDNS-Checks: massera.csic.edu.uy: 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: massera.csic.edu.uy / 2001:1328:2c:a::7: OP100: fatal timeout. FLAGS: fatal timeout. V1: fatal timeout. V1OP100: fatal timeout. V1FLAGS: fatal timeout. DNSSEC: fatal timeout. V1DNSSEC: fatal timeout. NSID: fatal timeout. COOKIE: fatal timeout. CLIENTSUBNET: fatal timeout.
Nameserver doesn't pass all EDNS-Checks: massera.csic.edu.uy / 2001:1328:2c:a::7: OP100: fatal timeout. FLAGS: fatal timeout. V1: fatal timeout. V1OP100: fatal timeout. V1FLAGS: fatal timeout. DNSSEC: fatal timeout. V1DNSSEC: fatal timeout. NSID: fatal timeout. COOKIE: fatal timeout. CLIENTSUBNET: fatal timeout.
Nameserver doesn't pass all EDNS-Checks: seciu.edu.uy: 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
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

http://telem2.cure.edu.uy/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de 164.73.226.12
-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.
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: 423110 milliseconds, 423.110 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

Issuerlast 7 daysactivenum Certs
CN=Let's Encrypt Authority X3, O=Let's Encrypt, C=US
0 /0 new
0
2

CRT-IdIssuernot beforenot afterDomain namesLE-Duplicatenext LE
3131511544
precert
CN=Let's Encrypt Authority X3, O=Let's Encrypt, C=US
2020-07-23 20:51:24
2020-10-21 20:51:24
telem2.cure.edu.uy
1 entries


2776930629
leaf cert
CN=Let's Encrypt Authority X3, O=Let's Encrypt, C=US
2020-04-23 21:32:35
2020-07-22 21:32:35
telem2.cure.edu.uy
1 entries



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: anaconda.cure.edu.uy, massera.csic.edu.uy, seciu.edu.uy

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

Answer: a.lactld.org, a.nic.uy, b.nic.uy, d.nic.uy, ns.dns.br, ns1.anteldata.com.uy, ns2.anteldata.com.uy, ns3.nic.mx
2
anaconda.cure.edu.uy
NS
a.lactld.org (2801:14:a000::10)

Answer: massera.csic.edu.uy, seciu.edu.uy

Answer: massera.csic.edu.uy
164.73.68.7

Answer: seciu.edu.uy
164.73.128.5
3
anaconda.cure.edu.uy: 164.73.227.7
A
massera.csic.edu.uy (164.73.68.7)
4
anaconda.cure.edu.uy: 2001:1328:56::7
AAAA
massera.csic.edu.uy (164.73.68.7)


13. CAA - Entries

DomainnameflagNameValue∑ Queries∑ Timeout
telem2.cure.edu.uy
0

no CAA entry found
1
0
cure.edu.uy
0

no CAA entry found
1
0
edu.uy
0

no CAA entry found
1
0
uy
0

no CAA entry found
1
0


14. TXT - Entries

DomainnameTXT EntryStatus∑ Queries∑ Timeout
cure.edu.uy
v=spf1 mx a:arrayan.interior.edu.uy a:godel.csic.edu.uy -all
ok
1
0
telem2.cure.edu.uy

ok
1
0
_acme-challenge.telem2.cure.edu.uy

Name Error - The domain name does not exist
1
0
_acme-challenge.telem2.cure.edu.uy.cure.edu.uy

Name Error - The domain name does not exist
1
0
_acme-challenge.telem2.cure.edu.uy.telem2.cure.edu.uy

Name Error - The domain name does not exist
1
0


15. Portchecks

No Port checks



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Last Result: https://check-your-website.server-daten.de/?q=telem2.cure.edu.uy - 2021-04-08 01:46:14


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