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


Update: 2020-03-04 - now 90 days later. All affected Letsencrypt certificates should be renewed. Time to remove that Info.




E

Wrong redirect http ⇒ https with new domain name

Checked:
22.05.2020 11:26:04


Older results

No older results found


1. IP-Addresses

HostTypeIP-Addressis auth.∑ Queries∑ Timeout
jiskha.com
A
66.228.55.50
Dallas/Texas/United States (US) - Linode, LLC
Hostname: li297-50.members.linode.com
yes
1
0

AAAA

yes


www.jiskha.com
A
66.228.55.50
Dallas/Texas/United States (US) - Linode, LLC
Hostname: li297-50.members.linode.com
yes
1
0

AAAA

yes


*.jiskha.com
A
Name Error
yes



AAAA
Name Error
yes



CNAME
Name Error
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



Algorithm: 8, 0 Labels, original TTL: 172800 sec, Signature-expiration: 11.06.2020, 00:00:00, Signature-Inception: 21.05.2020, 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: com
com
1 DS RR in the parent zone found



1 RRSIG RR to validate DS RR found



Algorithm: 8, 1 Labels, original TTL: 86400 sec, Signature-expiration: 04.06.2020, 05:00:00, Signature-Inception: 22.05.2020, 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



2 DNSKEY RR found



Public Key with Algorithm 8, KeyTag 30909, Flags 257 (SEP = Secure Entry Point)



Public Key with Algorithm 8, KeyTag 39844, Flags 256



1 RRSIG RR to validate DNSKEY RR found



Algorithm: 8, 1 Labels, original TTL: 86400 sec, Signature-expiration: 30.05.2020, 18:24:21, Signature-Inception: 15.05.2020, 18:19:21, KeyTag 30909, Signer-Name: com



Algorithm: 8, 1 Labels, original TTL: 86400 sec, Signature-expiration: 30.05.2020, 18:24:21, Signature-Inception: 15.05.2020, 18:19:21, KeyTag 30909, Signer-Name: com



Status: Good - Algorithmus 8 and DNSKEY with KeyTag 30909 used to validate the DNSKEY RRSet



Status: Good - Algorithmus 8 and DNSKEY with KeyTag 30909 used to validate the DNSKEY RRSet



Status: Valid Chain of trust. Parent-DS with Algorithm 8, KeyTag 30909, DigestType 2 and Digest "4tPJFvbe6scylOgmj7WIUESoM/xUWViPSpGEz8QaV2Y=" validates local Key with the same values, Key ist Secure Entry Point (SEP) of the zone

Zone: jiskha.com
jiskha.com
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 "bbgdpjqbeoqn8maiprv71jubpf8aucvi" between the hashed NSEC3-owner "bbgdd7mkl5le4v204g37ptqlo1uvqngh" and the hashed NextOwner "bbge74a0k2p7v497r5t9jrip6rl2fqf1". So the parent zone confirmes the not-existence of a DS RR.
Bitmap: NS, DS, RRSIG Validated: RRSIG Algorithm: 8, 2 Labels, original TTL: 86400 sec, Signature-expiration: 29.05.2020, 04:28:42, Signature-Inception: 22.05.2020, 03:18:42, KeyTag 39844, Signer-Name: com



0 DNSKEY RR found




Zone: www.jiskha.com
www.jiskha.com
0 DS RR in the parent zone found


3. Name Servers

DomainNameserverNS-IP
www.jiskha.com
  ns1.linode.com / 67m4

jiskha.com
  ns1.linode.com / 67m19
162.159.27.72
Chicago/Illinois/United States (US) - Cloudflare, Inc.


 
2400:cb00:2049:1::a29f:1a63
Columbus/North Carolina/United States (US) - CLOUDFLARE


  ns2.linode.com / 67m5
162.159.24.39
Chicago/Illinois/United States (US) - Cloudflare, Inc.


 
2400:cb00:2049:1::a29f:1827
Columbus/North Carolina/United States (US) - CLOUDFLARE


  ns3.linode.com / 67m24
162.159.25.129
Chicago/Illinois/United States (US) - Cloudflare, Inc.


 
2400:cb00:2049:1::a29f:1981
Columbus/North Carolina/United States (US) - CLOUDFLARE


  ns4.linode.com / 67m8
162.159.26.99
Chicago/Illinois/United States (US) - Cloudflare, Inc.


 
2400:cb00:2049:1::a29f:1b48
Columbus/North Carolina/United States (US) - CLOUDFLARE


  ns5.linode.com / 67m4
162.159.24.25
Chicago/Illinois/United States (US) - Cloudflare, Inc.


 
2400:cb00:2049:1::a29f:1819
Columbus/North Carolina/United States (US) - CLOUDFLARE

com
  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:com
Zone-Name:com
Primary:a.gtld-servers.net
Mail:nstld.verisign-grs.com
Serial:1590139532
Refresh:1800
Retry:900
Expire:604800
TTL:86400
num Entries:1


Domain:com
Zone-Name:com
Primary:a.gtld-servers.net
Mail:nstld.verisign-grs.com
Serial:1590139547
Refresh:1800
Retry:900
Expire:604800
TTL:86400
num Entries:12


Domain:jiskha.com
Zone-Name:jiskha.com
Primary:ns1.linode.com
Mail:leo.galleguillos.icloud.com
Serial:2020051463
Refresh:14400
Retry:14400
Expire:1209600
TTL:86400
num Entries:10


Domain:www.jiskha.com
Zone-Name:jiskha.com
Primary:ns1.linode.com
Mail:leo.galleguillos.icloud.com
Serial:2020051463
Refresh:14400
Retry:14400
Expire:1209600
TTL:86400
num Entries:1


5. Screenshots

Startaddress: https://www.jiskha.com, address used: https://www.jiskha.com/, Screenshot created 2020-05-22 11:27:35 +00:0

Mobil (412px x 732px)

910 milliseconds

Screenshot mobile - https://www.jiskha.com/
Mobil + Landscape (732px x 412px)

1514 milliseconds

Screenshot mobile landscape - https://www.jiskha.com/
Screen (1280px x 1680px)

2265 milliseconds

Screenshot Desktop - https://www.jiskha.com/

Mobile- and other Chrome-Checks

widthheight
visual Viewport396716
content Size97011247

Fatal: Horizontal scrollbar detected. Content-size width is greater then visual Viewport width.

Chrome-Connection: secure. secure connection settings. The connection to this site is encrypted and authenticated using TLS 1.3, X25519, and AES_128_GCM.

Chrome-Resources : secure. all served securely. All resources on this page are served securely.

6. Url-Checks


:

:
DomainnameHttp-StatusredirectSec.G
• http://jiskha.com/
66.228.55.50
301
https://www.jiskha.com/
Html is minified: 100.00 %
0.276
E
Date: Fri, 22 May 2020 09:26:51 GMT
Server: Apache/2.4.29 (Ubuntu)
Location: https://www.jiskha.com/
Content-Length: 307
Connection: close
Content-Type: text/html; charset=iso-8859-1

• http://www.jiskha.com/
66.228.55.50
301
https://www.jiskha.com/
Html is minified: 100.00 %
0.277
A
Date: Fri, 22 May 2020 09:26:51 GMT
Server: Apache/2.4.29 (Ubuntu)
Location: https://www.jiskha.com/
Content-Length: 311
Connection: close
Content-Type: text/html; charset=iso-8859-1

• https://jiskha.com/
66.228.55.50
301
https://www.jiskha.com/
Html is minified: 100.00 %
4.163
B
Date: Fri, 22 May 2020 09:26:52 GMT
Server: Apache/2.4.29 (Ubuntu)
Location: https://www.jiskha.com/
Content-Length: 308
Connection: close
Content-Type: text/html; charset=iso-8859-1

• https://www.jiskha.com/
66.228.55.50 GZip used - 6825 / 51081 - 86.64 %
Inline-JavaScript (∑/total): 3/262 Inline-CSS (∑/total): 0/0
200

Html is minified: 161.84 %
4.116
B
Date: Fri, 22 May 2020 09:26:57 GMT
Server: Apache/2.4.29 (Ubuntu)
Expires: Thu, 19 Nov 1981 08:52:00 GMT
Cache-Control: no-store, no-cache, must-revalidate
Pragma: no-cache
Set-Cookie: PHPSESSID=ku9q2thj8mgl6c8jojrdmaegev; Path=/; Domain=www.jiskha.com
Upgrade: h2
Connection: Upgrade, close
Vary: Accept-Encoding
Content-Encoding: gzip
Content-Length: 6825
Content-Type: text/html; charset=UTF-8

• http://jiskha.com/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
66.228.55.50
Inline-JavaScript (∑/total): 0/0 Inline-CSS (∑/total): 0/0
301
https://www.jiskha.com/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
Html is minified: 100.00 %
0.333
E
Visible Content: Moved Permanently The document has moved here . Apache/2.4.29 (Ubuntu) Server at jiskha.com Port 80
Date: Fri, 22 May 2020 09:27:01 GMT
Server: Apache/2.4.29 (Ubuntu)
Location: https://www.jiskha.com/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
Content-Length: 376
Connection: close
Content-Type: text/html; charset=iso-8859-1

• http://www.jiskha.com/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
66.228.55.50
Inline-JavaScript (∑/total): 0/0 Inline-CSS (∑/total): 0/0
301
https://www.jiskha.com/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
Html is minified: 100.00 %
0.273
A
Visible Content: Moved Permanently The document has moved here . Apache/2.4.29 (Ubuntu) Server at www.jiskha.com Port 80
Date: Fri, 22 May 2020 09:27:02 GMT
Server: Apache/2.4.29 (Ubuntu)
Location: https://www.jiskha.com/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
Content-Length: 380
Connection: close
Content-Type: text/html; charset=iso-8859-1

• https://www.jiskha.com/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de

Inline-JavaScript (∑/total): 3/262 Inline-CSS (∑/total): 0/0
404

Html is minified: 171.37 %
3.560
A
Not Found
Visible Content: Jiskha Homework Help Oops, Page Not Found You can ask a new question or search through existing questions. Ask a New Question Subjects Algebra Biology Calculus Chemistry Economics English Geometry Health History Math Language Arts Physics Science Spanish Statistics Social Studies more… Archives 2020 2019 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 2008 2007 2006 2005 © 2020 Jiskha Homework Help About Us Contact Us Privacy Policy Terms of Use
Info: Html-Content with meta and/or script, may be a problem creating a Letsencrypt certificate using http-01 validation
Date: Fri, 22 May 2020 09:27:08 GMT
Server: Apache/2.4.29 (Ubuntu)
Expires: Thu, 19 Nov 1981 08:52:00 GMT
Cache-Control: no-store, no-cache, must-revalidate
Pragma: no-cache
Set-Cookie: PHPSESSID=rl1d7bunsk1r3ubbqgira21hjk; Path=/; Domain=www.jiskha.com
Upgrade: h2
Connection: Upgrade, close
Transfer-Encoding: chunked
Content-Type: text/html; charset=UTF-8

• https://66.228.55.50/
66.228.55.50 GZip used - 3138 / 10918 - 71.26 %
Inline-JavaScript (∑/total): 0/0 Inline-CSS (∑/total): 1/2866
200

Html is minified: 223.78 %
4.066
N
Certificate error: RemoteCertificateNameMismatch, RemoteCertificateChainErrors
Date: Fri, 22 May 2020 09:27:03 GMT
Server: Apache/2.4.29 (Ubuntu)
Last-Modified: Fri, 15 May 2020 20:16:22 GMT
ETag: "2aa6-5a5b57ca7f1d0-gzip"
Accept-Ranges: bytes
Vary: Accept-Encoding
Content-Encoding: gzip
Content-Length: 3138
Connection: close
Content-Type: text/html

7. Comments


1. General Results, most used to calculate the result

Aname "jiskha.com" is domain, public suffix is "com", top-level-domain-type is "generic", tld-manager is "VeriSign Global Registry Services"
Agood: All ip addresses are public addresses
Warning: Only one ip address found: jiskha.com has only one ip address.
Warning: Only one ip address found: www.jiskha.com 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: jiskha.com has no ipv6 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: www.jiskha.com has no ipv6 address.
Agood: No asked Authoritative Name Server had a timeout
Agood: destination is https
Agood - only one version with Http-Status 200
Agood: one preferred version: www is preferred
AGood: Some urls with http status 200/404 have a complete Content-Type header (MediaType / MediaSubType + correct charset):2 complete Content-Type - header (3 urls)
https://66.228.55.50/ 66.228.55.50


Url with incomplete Content-Type - header - missing charset
Ahttp://www.jiskha.com/ 66.228.55.50
301
https://www.jiskha.com/
correct redirect http - https with the same domain name
Bhttps://www.jiskha.com/ 66.228.55.50
200
PHPSESSID=ku9q2thj8mgl6c8jojrdmaegev; Path=/; Domain=www.jiskha.com
Cookie sent via https, but not marked as secure
Bhttps://jiskha.com/ 66.228.55.50
301

Missing HSTS-Header
Bhttps://www.jiskha.com/ 66.228.55.50
200

Missing HSTS-Header
Bhttps://66.228.55.50/ 66.228.55.50
200

Missing HSTS-Header
Ehttp://jiskha.com/ 66.228.55.50
301
https://www.jiskha.com/
Wrong redirect one domain http to other domain https. First redirect to https without new dns query, so the server can send the HSTS header. That's fundamental using HSTS (Http Strict Transport Security). First step: Add correct redirects http ⇒ https. 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. Then recheck your domain, should be Grade C. There is the rule to select one https version as preferred version.
Nhttps://66.228.55.50/ 66.228.55.50
200

Error - Certificate isn't trusted, RemoteCertificateNameMismatch, RemoteCertificateChainErrors
Info: Checking all ip addresses of that domain without sending the hostname only one certificate found. Checking all ip addresses and sending the hostname only one certificate found. Both certificates are different. So that domain requires Server Name Indication (SNI), so the server is able to select the correct certificate.: Domain jiskha.com, 1 ip addresses.
Info: Checking all ip addresses of that domain without sending the hostname only one certificate found. Checking all ip addresses and sending the hostname only one certificate found. Both certificates are different. So that domain requires Server Name Indication (SNI), so the server is able to select the correct certificate.: Domain www.jiskha.com, 1 ip addresses.

2. DNS- and NameServer - Checks

AInfo:: 2 Root-climbing DNS Queries required to find all IPv4- and IPv6-Addresses of 5 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.linode.com (162.159.27.72, 2400:cb00:2049:1::a29f:1a63), ns2.linode.com (162.159.24.39, 2400:cb00:2049:1::a29f:1827), ns3.linode.com (162.159.25.129, 2400:cb00:2049:1::a29f:1981), ns4.linode.com (162.159.26.99, 2400:cb00:2049:1::a29f:1b48), ns5.linode.com (162.159.24.25, 2400:cb00:2049:1::a29f:1819)
AGood (1 - 3.0):: An average of 0.4 queries per domain name server required to find all ip addresses of all name servers.
AInfo:: 5 different Name Servers found: ns1.linode.com, ns2.linode.com, ns3.linode.com, ns4.linode.com, ns5.linode.com, 5 Name Servers included in Delegation: ns1.linode.com, ns2.linode.com, ns3.linode.com, ns4.linode.com, ns5.linode.com, 5 Name Servers included in 1 Zone definitions: ns1.linode.com, ns2.linode.com, ns3.linode.com, ns4.linode.com, ns5.linode.com, 1 Name Servers listed in SOA.Primary: ns1.linode.com.
AGood: Only one SOA.Primary Name Server found.: ns1.linode.com.
AGood: SOA.Primary Name Server included in the delegation set.: ns1.linode.com.
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.linode.com, ns2.linode.com, ns3.linode.com, ns4.linode.com, ns5.linode.com
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: 5 different Name Servers found
AGood: 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: linode.com
Warning: All Name Servers from the same Country / IP location.: 5 Name Servers, 1 Countries: US
AInfo: Ipv4-Subnet-list: 5 Name Servers, 1 different subnets (first Byte): 162., 1 different subnets (first two Bytes): 162.159., 4 different subnets (first three Bytes): 162.159.24., 162.159.25., 162.159.26., 162.159.27.
AGood: Name Server IPv4-addresses from different subnet found:
AInfo: IPv6-Subnet-list: 5 Name Servers with IPv6, 1 different subnets (first block): 2400:, 1 different subnets (first two blocks): 2400:cb00:, 1 different subnets (first three blocks): 2400:cb00:2049:, 1 different subnets (first four blocks): 2400:cb00:2049:0001:
Fatal: All Name Server IPv6 addresses from the same subnet.
AGood: Nameserver supports TCP connections: 10 good Nameserver
AGood: Nameserver supports Echo Capitalization: 10 good Nameserver
AGood: Nameserver supports EDNS with max. 512 Byte Udp payload, message is smaller: 10 good Nameserver
AGood: Nameserver has passed 10 EDNS-Checks (OP100, FLAGS, V1, V1OP100, V1FLAGS, DNSSEC, V1DNSSEC, NSID, COOKIE, CLIENTSUBNET): 10 good Nameserver
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

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.
AGood: Every https result with status 200 supports GZip.
https://www.jiskha.com/ 66.228.55.50
200

Warning: Https + http status 200 + Inline CSS / JavaScript found. Don't use inline CSS / JavaScript. These are compiled and re-used ressources, save these with a long Cache-Control max-age - header.
https://66.228.55.50/ 66.228.55.50
200

Warning: Https + http status 200 + Inline CSS / JavaScript found. Don't use inline CSS / JavaScript. These are compiled and re-used ressources, save these with a long Cache-Control max-age - header.
https://www.jiskha.com/ 66.228.55.50
200

Warning: Https result with status 200 found, Html-Content is too big. Should be max. 110 %. May contain inline CSS / JavaScript, too much comments or white space. Re-used ressources - create files with a long Cache-Control max-age header. Remove comments and white space.
https://66.228.55.50/ 66.228.55.50
200

Warning: Https result with status 200 found, Html-Content is too big. Should be max. 110 %. May contain inline CSS / JavaScript, too much comments or white space. Re-used ressources - create files with a long Cache-Control max-age header. Remove comments and white space.
https://66.228.55.50/ 66.228.55.50
200

Warning: Https connections (Standard Port 443) found without support of the http/2 protocol via ALPN. Http/2 is the new Http-Version (old: http 1.1) with some important new features. Update your server software so http/2 is available. Only one TCP-connection per Server (that's a performance boost), Header-Compression and Server Pushs are available. Domain Sharding and Inline-CSS/Javascript shouldn't used with http/2.
AGood: All script Elements (type text/javascript) and src-Attribute have a defer / async - Attribute. So loading and executing these JavaScripts doesn't block parsing and rendering the Html-Output.
AGood: All CSS / JavaScript files are sent with GZip. That reduces the content of the files. 10 external CSS / JavaScript files found
Warning: CSS / JavaScript files with a missing or too short Cache-Control header found. Browsers should cache and re-use these files. 2 external CSS / JavaScript files without Cache-Control-Header, 0 with Cache-Control, but no max-age, 4 with Cache-Control max-age too short (minimum 7 days), 4 with Cache-Control long enough, 10 complete.
Warning: Images with a missing or too short Cache-Control header found. Browsers should cache and re-use these files. 1 image files without Cache-Control-Header, 0 with Cache-Control, but no max-age, 0 with Cache-Control max-age too short (minimum 7 days), 0 with Cache-Control long enough, 1 complete.
AGood: All checked attribute values are enclosed in quotation marks (" or ').
AGood: All img-elements have a valid alt-attribute.: 1 img-elements found.
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
https://www.jiskha.com/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
404
3.560 seconds
Warning: 404 needs more then one second
ADuration: 95874 milliseconds, 95.874 seconds


8. Connections

DomainIPPortCert.ProtocolKeyExchangeStrengthCipherStrengthHashAlgorithmOCSP stapling
Domain/KeyExchangeIP/StrengthPort/CipherCert./StrengthProtocol/HashAlgorithmOCSP stapling
jiskha.com
66.228.55.50
443
ok
Tls12
ECDH Ephermal
255
Aes128
128
Sha256
error checking OCSP stapling
ok
jiskha.com
66.228.55.50
443
ok
Tls12

ECDH Ephermal
255
Aes128
128
Sha256
error checking OCSP stapling
ok
http/2 via ALPN supported 
SNI required
Tls.1.2
Tls.1.1
Tls.1.0
http/2 via ALPN supported
SNI required
Tls.1.2
Tls.1.1
Tls.1.0
Chain (complete)
1CN=jiskha.com

2CN=Let's Encrypt Authority X3, O=Let's Encrypt, C=US


www.jiskha.com
66.228.55.50
443
ok
Tls12
ECDH Ephermal
255
Aes128
128
Sha256
error checking OCSP stapling
ok

www.jiskha.com
66.228.55.50
443
ok
Tls12

ECDH Ephermal
255
Aes128
128
Sha256
error checking OCSP stapling
ok
http/2 via ALPN supported 
SNI required
Tls.1.2
Tls.1.1
Tls.1.0
http/2 via ALPN supported
SNI required
Tls.1.2
Tls.1.1
Tls.1.0
Chain (complete)
1CN=jiskha.com

2CN=Let's Encrypt Authority X3, O=Let's Encrypt, C=US


www.jiskha.com
www.jiskha.com
443
ok
Tls12
ECDH Ephermal
255
Aes128
128
Sha256
error checking OCSP stapling
ok

www.jiskha.com
www.jiskha.com
443
ok
Tls12

ECDH Ephermal
255
Aes128
128
Sha256
error checking OCSP stapling
ok
http/2 via ALPN supported 
Tls.1.2
Tls.1.1
Tls.1.0
http/2 via ALPN supported
Tls.1.2
Tls.1.1
Tls.1.0
Chain (complete)
1CN=jiskha.com

2CN=Let's Encrypt Authority X3, O=Let's Encrypt, C=US


66.228.55.50
66.228.55.50
443
Certificate/chain invalid and wrong name
Tls12
ECDH Ephermal
255
Aes256
256
Sha384
error checking OCSP stapling
ok

66.228.55.50
66.228.55.50
443
Certificate/chain invalid and wrong name
Tls12

ECDH Ephermal
255
Aes256
256
Sha384
error checking OCSP stapling
ok
no http/2 via ALPN 
Cert sent without SNI
Tls.1.2
Tls.1.1
Tls.1.0
no http/2 via ALPN
Cert sent without SNI
Tls.1.2
Tls.1.1
Tls.1.0
Self signed certificate
1CN=ubuntu1804prod


9. Certificates

1.
1.
CN=jiskha.com
18.03.2020
16.06.2020
expires in 10 days
jiskha.com, mail.jiskha.com, www.jiskha.com - 3 entries
1.
1.
CN=jiskha.com
18.03.2020

16.06.2020
expires in 10 days
jiskha.com, mail.jiskha.com, www.jiskha.com - 3 entries

KeyalgorithmRSA encryption (2048 bit)
Signatur:SHA256 With RSA-Encryption
Serial Number:034998D5BB465AE7F4E52D701968DB2584F5
Thumbprint:E70DC219C6BEBC17BE91B48623576094D59D33B1
SHA256 / Certificate:X9ALxXuiTbmWwPWrG92F6Ic3g6VfShwH8DT3h10JVoA=
SHA256 hex / Cert (DANE * 0 1):e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA256 hex / PublicKey (DANE * 1 1):9c831dc094956d3dd0dcf18547f60a9fcec98af27f171b662061d4716b3f5396
SHA256 hex / Subject Public Key Information (SPKI):910a8cbfaa8b66b5ca13c48a517c36ef5228e451217d6e63b4aa20c6451262fc
SPKI checked via https://v1.pwnedkeys.com/spki-hash:Good: Key isn't compromised
OCSP - Url:http://ocsp.int-x3.letsencrypt.org
OCSP - must staple:no
Certificate Transparency:yes


2.
CN=Let's Encrypt Authority X3, O=Let's Encrypt, C=US
17.03.2016
17.03.2021
expires in 284 days


2.
CN=Let's Encrypt Authority X3, O=Let's Encrypt, C=US
17.03.2016

17.03.2021
expires in 284 days


KeyalgorithmRSA encryption (2048 bit)
Signatur:SHA256 With RSA-Encryption
Serial Number:0A0141420000015385736A0B85ECA708
Thumbprint:E6A3B45B062D509B3382282D196EFE97D5956CCB
SHA256 / Certificate:JYR9Zo608E/dQLErawdAxWfafQJDCOtsLJb+QdneIY0=
SHA256 hex / Cert (DANE * 0 1):25847d668eb4f04fdd40b12b6b0740c567da7d024308eb6c2c96fe41d9de218d
SHA256 hex / PublicKey (DANE * 1 1):60b87575447dcba2a36b7d11ac09fb24a9db406fee12d2cc90180517616e8a18
SHA256 hex / Subject Public Key Information (SPKI):cbb93d32de628874a3ecfb92affadc97f1b795f84cc6f24221a089dee1aa25ad
SPKI checked via https://v1.pwnedkeys.com/spki-hash:Good: Key isn't compromised
OCSP - Url:http://isrg.trustid.ocsp.identrust.com
OCSP - must staple:no
Certificate Transparency:no


3.
CN=DST Root CA X3, O=Digital Signature Trust Co.
30.09.2000
30.09.2021
expires in 481 days


3.
CN=DST Root CA X3, O=Digital Signature Trust Co.
30.09.2000

30.09.2021
expires in 481 days


KeyalgorithmRSA encryption (2048 bit)
Signatur:SHA-1 with RSA Encryption
Serial Number:44AFB080D6A327BA893039862EF8406B
Thumbprint:DAC9024F54D8F6DF94935FB1732638CA6AD77C13
SHA256 / Certificate:BocmAzGnJAPZCfEF5pvPDTLhvSST/8bZIG0RvNZ3Bzk=
SHA256 hex / Cert (DANE * 0 1):0687260331a72403d909f105e69bcf0d32e1bd2493ffc6d9206d11bcd6770739
SHA256 hex / PublicKey (DANE * 1 1):563b3caf8cfef34c2335caf560a7a95906e8488462eb75ac59784830df9e5b2b
SHA256 hex / Subject Public Key Information (SPKI):29cc40db5e2de462a311cbbafaa1dc466960002335ecdf3317f2cd05c1d0bedf
SPKI checked via https://v1.pwnedkeys.com/spki-hash:Good: Key isn't compromised
OCSP - Url:
OCSP - must staple:no
Certificate Transparency:no


2.
1.
CN=ubuntu1804prod
15.05.2020
13.05.2030
expires in 3628 days
ubuntu1804prod - 1 entry
2.
1.
CN=ubuntu1804prod
15.05.2020

13.05.2030
expires in 3628 days
ubuntu1804prod - 1 entry

KeyalgorithmRSA encryption (2048 bit)
Signatur:SHA256 With RSA-Encryption
Serial Number:20C430BC3DF43B8155528B4516A794E183153294
Thumbprint:6FFC33E45BD33031E00B5F3E65E4DA94013AF0F9
SHA256 / Certificate:jHjySvfN4unIVBG8fupdy0dgyP85gfqtiYE8J3s2+kM=
SHA256 hex / Cert (DANE * 0 1):e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA256 hex / PublicKey (DANE * 1 1):6c655f0fbc9d5b93c65088c2361e68056c68083c0e99f16f9fc366f36a6de69c
SHA256 hex / Subject Public Key Information (SPKI):1834284a5cff385c68ebdd5a263f5785bbf7d331b3739b68bea6efef570ca6f5
SPKI checked via https://v1.pwnedkeys.com/spki-hash:Good: Key isn't compromised
OCSP - Url:
OCSP - must staple:no
Certificate Transparency:no

UntrustedRoot: A certificate chain processed, but terminated in a root certificate which is not trusted by the trust provider.


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
1503468692
leaf cert
CN=Let's Encrypt Authority X3, O=Let's Encrypt, C=US
2020-03-18 10:30:26
2020-06-16 10:30:26
jiskha.com, mail.jiskha.com, www.jiskha.com - 3 entries



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
1
3

CRT-IdIssuernot beforenot afterDomain namesLE-Duplicatenext LE
2597042221
leaf cert
CN=Let's Encrypt Authority X3, O=Let's Encrypt, C=US
2020-03-18 09:30:26
2020-06-16 08:30:26
jiskha.com, mail.jiskha.com, www.jiskha.com
3 entries


2353338252
leaf cert
CN=Let's Encrypt Authority X3, O=Let's Encrypt, C=US
2020-01-17 16:30:41
2020-04-16 15:30:41
jiskha.com, mail.jiskha.com, www.jiskha.com
3 entries


2125649463
precert
CN=Let's Encrypt Authority X3, O=Let's Encrypt, C=US
2019-11-18 07:30:16
2020-02-16 07:30:16
jiskha.com, mail.jiskha.com, www.jiskha.com
3 entries



11. Html-Content - Entries

Summary

Subresource Integrity (SRI)
DomainnameHtmlElementrel/property∑ size∑ problems∑ int.∑ ext.∑ Origin poss.∑ SRI ParseErrors∑ SRI valid∑ SRI missing
https://www.jiskha.com/
66.228.55.50
a

229

0


0
0
0


form

1
1,732 Bytes
0
1
0
0
0
0


link
stylesheet
1
1,622 Bytes
0
1
0
0
0
0


link
other
2
1,150 Bytes
0
1
0
0
0
0


meta
other
5

0


0
0
0


script

4
32,033 Bytes
0
2
2
1
0
0
-1
https://66.228.55.50/
66.228.55.50
a

3

0


0
0
0


img

1

0
1
0
0
0
0


meta
other
1

0


0
0
0

Details

DomainnameHtml-Elementname/equiv/ property/relhref/src/contentHttpStatusmsgStatus
https://www.jiskha.com/
66.228.55.50
a

/


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/contact


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a

/questions/1825727/find-the-absolute-maximum-and-minimum-values-of-f-on-the-set-d-f-x-y-xy-2-5-d#2020084


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a

/questions/1825729/before-graphing-equations-how-can-you-determine-whether-a-system-of-equations-has-exactly#2020093


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a

/questions/1825730/spinner-is-divided-into-8-equal-parts-find-the-probability-of-it-landing-of-p-greater


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a

/questions/1825730/spinner-is-divided-into-8-equal-parts-find-the-probability-of-it-landing-of-p-greater#2020094


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/questions/1825731/an-object-launched-from-the-ground-has-a-height-in-meters-after-t-seconds-that-is-modeled


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a

/questions/1825731/an-object-launched-from-the-ground-has-a-height-in-meters-after-t-seconds-that-is-modeled#2020179


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a

/questions/1825732/what-is-the-function-of-cos-that-has-an-amplitude-of-4-a-period-of-2-and-has-a-point


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/questions/1825732/what-is-the-function-of-cos-that-has-an-amplitude-of-4-a-period-of-2-and-has-a-point#2020128


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/questions/1825733/what-is-the-vertical-and-horizontal-translation-for-the-function-y-4sin-4-5x-3


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/questions/1825733/what-is-the-vertical-and-horizontal-translation-for-the-function-y-4sin-4-5x-3#2020129


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a

/questions/1825734/a-man-is-on-the-shore-of-a-circular-lake-with-a-radius-of-3km-at-point-p-and-wants-to


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/questions/1825734/a-man-is-on-the-shore-of-a-circular-lake-with-a-radius-of-3km-at-point-p-and-wants-to#2020144


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a

/questions/1825735/a-solution-containing-a-mixture-of-0-0492-m-potassium-chromate-k2cro4-and-0-0565-m


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a

/questions/1825735/a-solution-containing-a-mixture-of-0-0492-m-potassium-chromate-k2cro4-and-0-0565-m#2020151


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/questions/1825735/a-solution-containing-a-mixture-of-0-0492-m-potassium-chromate-k2cro4-and-0-0565-m#2020152


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/questions/1825735/a-solution-containing-a-mixture-of-0-0492-m-potassium-chromate-k2cro4-and-0-0565-m#2020156


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/questions/1825735/a-solution-containing-a-mixture-of-0-0492-m-potassium-chromate-k2cro4-and-0-0565-m#2020163


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/questions/1825736/why-did-republicans-in-congress-opposed-lincolns-ten-percent-plan-they-worried-that-it


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/questions/1825736/why-did-republicans-in-congress-opposed-lincolns-ten-percent-plan-they-worried-that-it#2020127


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/questions/1825737/this-question-was-already-asked-but-there-wasnt-any-explanation-provided-the-dimensions


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a

/questions/1825737/this-question-was-already-asked-but-there-wasnt-any-explanation-provided-the-dimensions#2020146


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/questions/1825737/this-question-was-already-asked-but-there-wasnt-any-explanation-provided-the-dimensions#2020153


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a

/questions/1825738/two-spheres-are-used-in-a-certain-machine-one-has-a-volume-of-7-cm3-and-the-other-has-a


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/questions/1825738/two-spheres-are-used-in-a-certain-machine-one-has-a-volume-of-7-cm3-and-the-other-has-a#2020147


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/questions/1825738/two-spheres-are-used-in-a-certain-machine-one-has-a-volume-of-7-cm3-and-the-other-has-a#2020150


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/questions/1825738/two-spheres-are-used-in-a-certain-machine-one-has-a-volume-of-7-cm3-and-the-other-has-a#2020158


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/questions/1825738/two-spheres-are-used-in-a-certain-machine-one-has-a-volume-of-7-cm3-and-the-other-has-a#2020159


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/questions/1825738/two-spheres-are-used-in-a-certain-machine-one-has-a-volume-of-7-cm3-and-the-other-has-a#2020166


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a

/questions/1825738/two-spheres-are-used-in-a-certain-machine-one-has-a-volume-of-7-cm3-and-the-other-has-a#2020167


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/questions/1825738/two-spheres-are-used-in-a-certain-machine-one-has-a-volume-of-7-cm3-and-the-other-has-a#2020170


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/questions/1825738/two-spheres-are-used-in-a-certain-machine-one-has-a-volume-of-7-cm3-and-the-other-has-a#2020171


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a

/questions/1825739/a-circular-target-is-divided-into-nine-parts-of-equal-area-by-eight-concentric-rings-if


1
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a

/questions/1825739/a-circular-target-is-divided-into-nine-parts-of-equal-area-by-eight-concentric-rings-if#2020154


1
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a

/questions/1825739/a-circular-target-is-divided-into-nine-parts-of-equal-area-by-eight-concentric-rings-if#2020157


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a

/questions/1825740/the-area-of-triangle-abc-is-divided-into-four-equal-parts-by-segments-parallel-to-the-base


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/questions/1825740/the-area-of-triangle-abc-is-divided-into-four-equal-parts-by-segments-parallel-to-the-base#2020160


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/questions/1825740/the-area-of-triangle-abc-is-divided-into-four-equal-parts-by-segments-parallel-to-the-base#2020164


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/questions/1825741/a-2-0-m-tall-basketball-player-is-standing-on-the-floor-4-0-m-from-the-basket-if-he


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a

/questions/1825741/a-2-0-m-tall-basketball-player-is-standing-on-the-floor-4-0-m-from-the-basket-if-he#2020142


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ok








a

/questions/1825742/1-which-class-lever-will-never-give-you-a-mechanical-advantage-2-which-class-lever-will


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a

/questions/1825743/a-brand-of-powdered-milk-is-advertised-as-having-a-net-weight-of-150-grams-a-curious


1
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a

/questions/1825744/read-each-example-and-identify-it-as-personification-a-simile-or-a-metaphor-around-this


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/questions/1825744/read-each-example-and-identify-it-as-personification-a-simile-or-a-metaphor-around-this#2020136


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/questions/1825744/read-each-example-and-identify-it-as-personification-a-simile-or-a-metaphor-around-this#2020137


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/questions/1825744/read-each-example-and-identify-it-as-personification-a-simile-or-a-metaphor-around-this#2020138


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a

/questions/1825744/read-each-example-and-identify-it-as-personification-a-simile-or-a-metaphor-around-this#2020139


1
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a

/questions/1825744/read-each-example-and-identify-it-as-personification-a-simile-or-a-metaphor-around-this#2020140


1
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a

/questions/1825745/what-do-you-think-is-the-effort-taken-by-the-government-specifically-the-department-of


1
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a

/questions/1825746/current-music-is-first-recorded-in-format-digital-or-analog-help-me-please-n


1
ok








a

/questions/1825747/find-the-slope-intercept-form-of-the-line-given-that-x-2-3t-y-4-6t


1
ok








a

/questions/1825747/find-the-slope-intercept-form-of-the-line-given-that-x-2-3t-y-4-6t#2020161


1
ok








a

/questions/1825748/a-200-loop-coil-of-cross-sectional-area-8-5-cm2-lies-in-the-plane-of-the-page-an-external


1
ok








a

/questions/1825749/what-is-the-volume-of-a-total-of-0-5-moles-of-cl2-at-3-atm-and-100c


1
ok








a

/questions/1825749/what-is-the-volume-of-a-total-of-0-5-moles-of-cl2-at-3-atm-and-100c#2020175


1
ok








a

/questions/1825750/a-line-segment-starts-at-p-4-7-and-ends-at-q-2-3-find-the-parametric-equations-of-the


1
ok








a

/questions/1825750/a-line-segment-starts-at-p-4-7-and-ends-at-q-2-3-find-the-parametric-equations-of-the#2020181


1
ok








a

/questions/1825751/the-new-dimensions-are-11-times-the-original-dimensions-and-the-new-surface-area-is-121


1
ok








a

/questions/1825751/the-new-dimensions-are-11-times-the-original-dimensions-and-the-new-surface-area-is-121#2020182


1
ok








a

/questions/1825752/1-a-gas-has-a-pressure-of-3-atm-when-the-temperature-is-25c-what-is-the-new-pressure


1
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a

/questions/1825752/1-a-gas-has-a-pressure-of-3-atm-when-the-temperature-is-25c-what-is-the-new-pressure#2020190


1
ok








a

/questions/1825753/the-volume-of-water-in-a-resevoir-decreases-21-000-cubic-yards-over-a-3-month-period-what


1
ok








a

/questions/1825753/the-volume-of-water-in-a-resevoir-decreases-21-000-cubic-yards-over-a-3-month-period-what#2020187


1
ok








a

/questions/1825753/the-volume-of-water-in-a-resevoir-decreases-21-000-cubic-yards-over-a-3-month-period-what#2020196


1
ok








a

/questions/1825753/the-volume-of-water-in-a-resevoir-decreases-21-000-cubic-yards-over-a-3-month-period-what#2020200


1
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a

/questions/1825754/which-expression-represents-the-perimeter-of-the-model-shown-below-4x-3-2x-a-2x-3x-4x


1
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a

/questions/1825755/what-are-the-similarities-and-differences-of-electrogravimetry-without-potential-control


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a

/questions/ask


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a

/subjects


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a

/subjects?subject=english


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a

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1
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a

/subjects?subject=history


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form
get
/search
200

1
ok
text/html; charset=UTF-8, missing X-Content-Type-Options nosniff

1732 Bytes






link
canonical
https://www.jiskha.com/


1
ok








link
shortcut icon
/favicon.ico
200

1
ok
image/vnd.microsoft.icon, missing X-Content-Type-Options nosniff

No Cache-Control header
No GZip - 1150 Bytes






link
stylesheet
/css/style.min.css?v=2020043004
200

1
ok
text/css;charset=UTF-8, missing X-Content-Type-Options nosniff

Cache-Control: max-age=31536000 - with long duration found.
GZip: 1622/5732 Bytes




local SRI possible, possible hash-values:

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sha384-N/gjYbQd+SbN+8/54yYsFxxRi+HF81A7pa08esfyFahJ9v/5MQ0P6eNbZeNDTk+Q
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<link rel="stylesheet" href="/css/style.min.css?v=2020043004" crossorigin="anonymous" integrity="sha256-5zYVj4IhtsnWnvdNuJJIf5TkHepyzbEbUmG6km2XOWA=" />




meta

UTF-8


1
ok








meta
fb:admins
4803002


1
ok








meta
fb:app_id
642957445863499


1
ok








meta
google
notranslate


1
ok








meta
viewport
width=device-width, height=device-height, initial-scale=1.0, minimum-scale=1.0


1
ok








script
src
//pagead2.googlesyndication.com/pagead/js/adsbygoogle.js
200

1
ok
async attribute found text/javascript; charset=ISO-8859-1, X-Content-Type-Options nosniff found

Cache-Control: private, max-age=3600 - max-age too short.
GZip: 39264/109815 Bytes




Server-Header Access-Control-Allow-Origin: not found
Cross-Origin Resource Sharing (CORS) not supported



script
src
/js/jquery-3.4.1.min.js
200

1
ok
defer attribute found application/javascript, missing X-Content-Type-Options nosniff

No Cache-Control - header
GZip: 30677/88145 Bytes




local SRI possible, possible hash-values:

sha256-CSXorXvZcTkaix6Yvo6HppcZGetbYMGWSFlBw8HfCJo=
sha384-vk5WoKIaW/vJyUAd9n/wmopsmNhiy+L2Z+SBxGYnUkunIxVxAv/UtMOhba/xskxh
sha512-bnIvzh6FU75ZKxp0GXLH9bewza/OIw6dLVh9ICg0gogclmYGguQJWl8U30WpbsGTqbIiAwxTsbe76DErLq5EDQ==

<script src="/js/jquery-3.4.1.min.js" crossorigin="anonymous" integrity="sha256-CSXorXvZcTkaix6Yvo6HppcZGetbYMGWSFlBw8HfCJo=" />




script
src
/js/main.min.js?v=2020050301
200

1
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defer attribute found application/javascript, missing X-Content-Type-Options nosniff

Cache-Control: max-age=31536000 - with long duration found.
GZip: 1356/6140 Bytes




local SRI possible, possible hash-values:

sha256-WnMncfEk5cpYxjJjq7YP1iFGrK3bbCSVC9cxhcKkmzY=
sha384-5ywmxJFOemlDkkQJLEtCJXy0Ik7eDtrrkoskf9fnqzDwnAf/GaFlnsi61EZYhJzP
sha512-o99G4oiEBhtfhdea4cTivYbEHvb/9+c15a9tk7s5Po2iZ9ga+FA893jsg0QSx6XWaa+lkMi/cvlM+KPdZFu6mA==

<script src="/js/main.min.js?v=2020050301" crossorigin="anonymous" integrity="sha256-WnMncfEk5cpYxjJjq7YP1iFGrK3bbCSVC9cxhcKkmzY=" />




script
src
https://www.googletagmanager.com/gtag/js?id=UA-85512984-1
200

1
ok
async attribute found application/javascript; charset=UTF-8, missing X-Content-Type-Options nosniff

Cache-Control: private, max-age=900 - max-age too short.
GZip: 32344/84321 Bytes




Server-Header Access-Control-Allow-Origin: *
Cross-Origin Resource Sharing (CORS) supported

missing crossorigin=anonymous|use-credentials and integrity - attribute, possible hash-values:

sha256-xLdAPAeHk7QmGahW0SBhKu5knfUjKh7u0dXRacjdw3w=
sha384-AJrj3sSBlXyZPhSX5lal9GkNExBfOS03iOtdq6d0/nHksrkKY4X0Pgkq2D49q9nI
sha512-IHrCsVRp2S7q+aLG8PYVY4w3yrUMv5BhNDjbtzpmWjOM+Qj93caMQTeilkm1XBH3aUV0OELlCWufLCzbh/6P1Q==

<script src="https://www.googletagmanager.com/gtag/js?id=UA-85512984-1" crossorigin="anonymous" integrity="sha256-xLdAPAeHk7QmGahW0SBhKu5knfUjKh7u0dXRacjdw3w=" />



https://66.228.55.50/
66.228.55.50
a

/manual


1
ok








a

http://httpd.apache.org/docs/2.4/mod/mod_userdir.html


1
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a

https://bugs.launchpad.net/ubuntu/+source/apache2


1
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img
src
/icons/ubuntu-logo.png
301
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0 Bytes






meta
Content-Type
text/html; charset=UTF-8


1
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12. Nameserver - IP-Adresses (alpha)

Required Root-climbing DNS-Queries to find ip addresses of all Name Servers: ns1.linode.com, ns2.linode.com, ns3.linode.com, ns4.linode.com, ns5.linode.com

QNr.DomainTypeNS used
1
com
NS
l.root-servers.net (2001:500:9f::42)

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
ns1.linode.com: 162.159.27.72, 2400:cb00:2049:1::a29f:1a63
NS
a.gtld-servers.net (2001:503:a83e::2:30)

Answer: ns2.linode.com
162.159.24.39, 2400:cb00:2049:1::a29f:1827

Answer: ns3.linode.com
162.159.25.129, 2400:cb00:2049:1::a29f:1981

Answer: ns4.linode.com
162.159.26.99, 2400:cb00:2049:1::a29f:1b48

Answer: ns5.linode.com
162.159.24.25, 2400:cb00:2049:1::a29f:1819


13. CAA - Entries

DomainnameflagNameValue∑ Queries∑ Timeout
www.jiskha.com
0

no CAA entry found
1
0
jiskha.com
0

no CAA entry found
1
0
com
0

no CAA entry found
1
0


14. TXT - Entries

DomainnameTXT EntryStatus∑ Queries∑ Timeout
jiskha.com

ok
1
0
www.jiskha.com

ok
1
0
_acme-challenge.jiskha.com

Name Error - The domain name does not exist
1
0
_acme-challenge.www.jiskha.com

Name Error - The domain name does not exist
1
0
_acme-challenge.jiskha.com.jiskha.com

Name Error - The domain name does not exist
1
0
_acme-challenge.www.jiskha.com.jiskha.com

Name Error - The domain name does not exist
1
0
_acme-challenge.www.jiskha.com.www.jiskha.com

Name Error - The domain name does not exist
1
0


15. Portchecks

Domain or IPPortDescriptionResultAnswer
jiskha.com
21
FTP



jiskha.com
21
FTP



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

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

jiskha.com
25
SMTP
open
220 li809-10.members.linode.com ESMTP Postfix (Ubuntu)

jiskha.com
25
SMTP
open
220 li809-10.members.linode.com ESMTP Postfix (Ubuntu)

jiskha.com
53
DNS



jiskha.com
53
DNS



jiskha.com
110
POP3



jiskha.com
110
POP3



jiskha.com
143
IMAP



jiskha.com
143
IMAP



jiskha.com
465
SMTP (encrypted)



jiskha.com
465
SMTP (encrypted)



jiskha.com
587
SMTP (encrypted, submission)



jiskha.com
587
SMTP (encrypted, submission)



jiskha.com
993
IMAP (encrypted)



jiskha.com
993
IMAP (encrypted)



jiskha.com
995
POP3 (encrypted)



jiskha.com
995
POP3 (encrypted)



jiskha.com
1433
MS SQL



jiskha.com
1433
MS SQL



jiskha.com
2082
cPanel (http)



jiskha.com
2082
cPanel (http)



jiskha.com
2083
cPanel (https)



jiskha.com
2083
cPanel (https)



jiskha.com
2086
WHM (http)



jiskha.com
2086
WHM (http)



jiskha.com
2087
WHM (https)



jiskha.com
2087
WHM (https)



jiskha.com
2089
cPanel Licensing



jiskha.com
2089
cPanel Licensing



jiskha.com
2095
cPanel Webmail (http)



jiskha.com
2095
cPanel Webmail (http)



jiskha.com
2096
cPanel Webmail (https)



jiskha.com
2096
cPanel Webmail (https)



jiskha.com
2222
DirectAdmin (http)



jiskha.com
2222
DirectAdmin (http)



jiskha.com
2222
DirectAdmin (https)



jiskha.com
2222
DirectAdmin (https)



jiskha.com
3306
mySql



jiskha.com
3306
mySql



jiskha.com
5224
Plesk Licensing



jiskha.com
5224
Plesk Licensing



jiskha.com
5432
PostgreSQL



jiskha.com
5432
PostgreSQL



jiskha.com
8080
Ookla Speedtest (http)



jiskha.com
8080
Ookla Speedtest (http)



jiskha.com
8080
Ookla Speedtest (https)



jiskha.com
8080
Ookla Speedtest (https)



jiskha.com
8083
VestaCP http



jiskha.com
8083
VestaCP http



jiskha.com
8083
VestaCP https



jiskha.com
8083
VestaCP https



jiskha.com
8443
Plesk Administration (https)



jiskha.com
8443
Plesk Administration (https)



jiskha.com
8447
Plesk Installer + Updates



jiskha.com
8447
Plesk Installer + Updates



jiskha.com
8880
Plesk Administration (http)



jiskha.com
8880
Plesk Administration (http)



jiskha.com
10000
Webmin (http)



jiskha.com
10000
Webmin (http)



jiskha.com
10000
Webmin (https)



jiskha.com
10000
Webmin (https)



www.jiskha.com
21
FTP



www.jiskha.com
21
FTP



www.jiskha.com
22
SSH
open
SSH-2.0-OpenSSH_7.6p1 Ubuntu-4ubuntu0.3

www.jiskha.com
22
SSH
open
SSH-2.0-OpenSSH_7.6p1 Ubuntu-4ubuntu0.3

www.jiskha.com
25
SMTP
open
220 li809-10.members.linode.com ESMTP Postfix (Ubuntu)

www.jiskha.com
25
SMTP
open
220 li809-10.members.linode.com ESMTP Postfix (Ubuntu)

www.jiskha.com
53
DNS



www.jiskha.com
53
DNS



www.jiskha.com
110
POP3



www.jiskha.com
110
POP3



www.jiskha.com
143
IMAP



www.jiskha.com
143
IMAP



www.jiskha.com
465
SMTP (encrypted)



www.jiskha.com
465
SMTP (encrypted)



www.jiskha.com
587
SMTP (encrypted, submission)



www.jiskha.com
587
SMTP (encrypted, submission)



www.jiskha.com
993
IMAP (encrypted)



www.jiskha.com
993
IMAP (encrypted)



www.jiskha.com
995
POP3 (encrypted)



www.jiskha.com
995
POP3 (encrypted)



www.jiskha.com
1433
MS SQL



www.jiskha.com
1433
MS SQL



www.jiskha.com
2082
cPanel (http)



www.jiskha.com
2082
cPanel (http)



www.jiskha.com
2083
cPanel (https)



www.jiskha.com
2083
cPanel (https)



www.jiskha.com
2086
WHM (http)



www.jiskha.com
2086
WHM (http)



www.jiskha.com
2087
WHM (https)



www.jiskha.com
2087
WHM (https)



www.jiskha.com
2089
cPanel Licensing



www.jiskha.com
2089
cPanel Licensing



www.jiskha.com
2095
cPanel Webmail (http)



www.jiskha.com
2095
cPanel Webmail (http)



www.jiskha.com
2096
cPanel Webmail (https)



www.jiskha.com
2096
cPanel Webmail (https)



www.jiskha.com
2222
DirectAdmin (http)



www.jiskha.com
2222
DirectAdmin (http)



www.jiskha.com
2222
DirectAdmin (https)



www.jiskha.com
2222
DirectAdmin (https)



www.jiskha.com
3306
mySql



www.jiskha.com
3306
mySql



www.jiskha.com
5224
Plesk Licensing



www.jiskha.com
5224
Plesk Licensing



www.jiskha.com
5432
PostgreSQL



www.jiskha.com
5432
PostgreSQL



www.jiskha.com
8080
Ookla Speedtest (http)



www.jiskha.com
8080
Ookla Speedtest (http)



www.jiskha.com
8080
Ookla Speedtest (https)



www.jiskha.com
8080
Ookla Speedtest (https)



www.jiskha.com
8083
VestaCP http



www.jiskha.com
8083
VestaCP http



www.jiskha.com
8083
VestaCP https



www.jiskha.com
8083
VestaCP https



www.jiskha.com
8443
Plesk Administration (https)



www.jiskha.com
8443
Plesk Administration (https)



www.jiskha.com
8447
Plesk Installer + Updates



www.jiskha.com
8447
Plesk Installer + Updates



www.jiskha.com
8880
Plesk Administration (http)



www.jiskha.com
8880
Plesk Administration (http)



www.jiskha.com
10000
Webmin (http)



www.jiskha.com
10000
Webmin (http)



www.jiskha.com
10000
Webmin (https)



www.jiskha.com
10000
Webmin (https)



66.228.55.50
21
FTP



66.228.55.50
21
FTP



66.228.55.50
22
SSH
open
SSH-2.0-OpenSSH_7.6p1 Ubuntu-4ubuntu0.3

66.228.55.50
22
SSH
open
SSH-2.0-OpenSSH_7.6p1 Ubuntu-4ubuntu0.3

66.228.55.50
25
SMTP
open
220 li809-10.members.linode.com ESMTP Postfix (Ubuntu)

66.228.55.50
25
SMTP
open
220 li809-10.members.linode.com ESMTP Postfix (Ubuntu)

66.228.55.50
53
DNS



66.228.55.50
53
DNS



66.228.55.50
110
POP3



66.228.55.50
110
POP3



66.228.55.50
143
IMAP



66.228.55.50
143
IMAP



66.228.55.50
465
SMTP (encrypted)



66.228.55.50
465
SMTP (encrypted)



66.228.55.50
587
SMTP (encrypted, submission)



66.228.55.50
587
SMTP (encrypted, submission)



66.228.55.50
993
IMAP (encrypted)



66.228.55.50
993
IMAP (encrypted)



66.228.55.50
995
POP3 (encrypted)



66.228.55.50
995
POP3 (encrypted)



66.228.55.50
1433
MS SQL



66.228.55.50
1433
MS SQL



66.228.55.50
2082
cPanel (http)



66.228.55.50
2082
cPanel (http)



66.228.55.50
2083
cPanel (https)



66.228.55.50
2083
cPanel (https)



66.228.55.50
2086
WHM (http)



66.228.55.50
2086
WHM (http)



66.228.55.50
2087
WHM (https)



66.228.55.50
2087
WHM (https)



66.228.55.50
2089
cPanel Licensing



66.228.55.50
2089
cPanel Licensing



66.228.55.50
2095
cPanel Webmail (http)



66.228.55.50
2095
cPanel Webmail (http)



66.228.55.50
2096
cPanel Webmail (https)



66.228.55.50
2096
cPanel Webmail (https)



66.228.55.50
2222
DirectAdmin (http)



66.228.55.50
2222
DirectAdmin (http)



66.228.55.50
2222
DirectAdmin (https)



66.228.55.50
2222
DirectAdmin (https)



66.228.55.50
3306
mySql



66.228.55.50
3306
mySql



66.228.55.50
5224
Plesk Licensing



66.228.55.50
5224
Plesk Licensing



66.228.55.50
5432
PostgreSQL



66.228.55.50
5432
PostgreSQL



66.228.55.50
8080
Ookla Speedtest (http)



66.228.55.50
8080
Ookla Speedtest (http)



66.228.55.50
8080
Ookla Speedtest (https)



66.228.55.50
8080
Ookla Speedtest (https)



66.228.55.50
8083
VestaCP http



66.228.55.50
8083
VestaCP http



66.228.55.50
8083
VestaCP https



66.228.55.50
8083
VestaCP https



66.228.55.50
8443
Plesk Administration (https)



66.228.55.50
8443
Plesk Administration (https)



66.228.55.50
8447
Plesk Installer + Updates



66.228.55.50
8447
Plesk Installer + Updates



66.228.55.50
8880
Plesk Administration (http)



66.228.55.50
8880
Plesk Administration (http)



66.228.55.50
10000
Webmin (http)



66.228.55.50
10000
Webmin (http)



66.228.55.50
10000
Webmin (https)



66.228.55.50
10000
Webmin (https)





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