The whois name servers are not the same as the name servers from a dns query.
Whois return: ns-1306.awsdns-35.org, ns-1597.awsdns-07.co.uk, ns-418.awsdns-52.com, ns-666.awsdns-19.net
DNS tree return: ns-1158.awsdns-16.org, ns-1715.awsdns-22.co.uk, ns-477.awsdns-59.com, ns-635.awsdns-15.net
The Domain does not have SPF.
The Domain does not have DMARC.
The X-XSS-Protection header was not found.
The X-Content-Type-Options header was not found.
We do not detect any DKIM record for this domain.
Host has no "A" (IPv4) field for www.
Host has no "AAAA" (IPv6) field for www.
The Content-Security-Policy header was not found.
d2vkhfte8ff6u5.cloudfront.net was detected as domain
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The Bind version should not be visible otherwise it will be possible to search for potential security vulnerabilities of the version.
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In order for the availability rate of DNS servers to be at its highest, it is vital and recommended by the RFC to have at least 2 servers.
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Every DNS servers should be accessible and accept public query.
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It's important that all servers returned a "success" code.
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IPs for DNS servers must be different in order to have high availability.
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The class C of each IP must be different so that the servers are not found on the same bay and therefore there is a risk of unavailability.
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The synchronization of the DNS servers must be perfect in order to avoid any dns resolution error. The servers must therefore give the same answer when asked "what are the DNS servers for the domain?".
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The SOA answered by the DNS servers must be identical for each servers. The most important information is the master server and the contact email address.
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DNS resolvers that allow queries from all IP addresses and are exposed to the Internet can be attacked and used to conduct Denial of Service (DoS) attacks on behalf of the hacker.
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An attacker can use a zone transfer that contains a malicious code or an inappropriate format that crashes a DNS server vulnerable to this type of attack, which results in a DoS that destabilizes the DNS services. It is possible to test it manually with this commands: #host -T axfr or #dig axfr.
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Having a dns server that allow recursive queries is a security risk, DDOS attack can be performed.
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It is extremely important that each DNS return the same MX records in order to avoid contacting an SMTP server that no longer exists.
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The whois name servers are not the same as the name servers from a dns query.
Whois return: ns-1306.awsdns-35.org, ns-1597.awsdns-07.co.uk, ns-418.awsdns-52.com, ns-666.awsdns-19.net
DNS tree return: ns-1158.awsdns-16.org, ns-1715.awsdns-22.co.uk, ns-477.awsdns-59.com, ns-635.awsdns-15.net
The dns servers given in the domain whois must be the same as those returned by a dns resolution request.
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A domain must not be blacklisted or it will be penalized for referencing and deliverability of emails.
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Google safe browsing categorizes a domain as bad if something suspicious is detected.
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Virus Total analyze your domain or IP address with 66 antivirus.
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Web Of Trust rates thousands of websites and find threats if they exist.
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There is no mail server. Please test cloudfront.net.
Autodiscover not configured
The Domain does not have SPF.
The Domain does not have DMARC.
We do not detect any DKIM record for this domain.
It is strongly recommended to configure DKIM. Note: You could use a service like Mailout to fix this problem. Click on below link to know more
mailout DKIM definition0.000s
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When a sending server makes a connection to the recipient server, the recipient server notes the sending IP address and performs a reverse lookup, called a PTR lookup, named after the type of DNS record used. If the result of the reverse lookup matches the result of a forward DNS Lookup, then it's much more likely that the message is legitimate. If the IP address doesn't match, it's much more likely that the sending address was spoofed and therefore much more likely that it's unwanted and could be considered spam.
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The IP of the SMTP servers must be different if it is no longer reachable.
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Smtp servers that are listed in DNS area must be accessible, otherwise, there is a risk that emails may be lost
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STARTTLS turns an unencrypted connection into a secure connection. Note: You can use a service like altospam to solve this problem. Click on the link below to learn more
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EXPN command is now considered to be a security risk, spammers being able to harvest valid e-mail addresses via each mailing list.
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As the EXPN command, VRFY is used by spammers to verify an address.
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If a server is open relay, there is a risk that spammers use your server to send illegitimate mail.
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According to the RFC 5321, SMTP server should accept postmaster@yourDomain as a recipient.
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The banner must return (2xx) a valid (4xx) or temporary code.
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Banner must contain the name of the server
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There is a risk to display the type and the version of the server, because people can find a breach for a specific version and use it
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Domain should have at least 2 SMTP servers according to the RFC. Note: You can use a service like altospam to solve this problem. Click on the link below to learn more
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The class C of every IPs should be differents
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SPF record is no longer used, SPF must be into TXT record because many servers do not support SPF record. If SPF record exist, it should be the same as TXT
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To avoid issue with SPF, it is strongly recommended to configure only one.
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According to the RFC, the mecanism "all" must be specified in the SPF record, except if there is a Redirect tag.
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The mecanism "All" has to be the last tag in SPF record. Be sure you don't have any dupplicates entry in your field.
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The mecanism "Redirect" has to be the last tag in SPF record. Be sure you don't have any dupplicates entry in your field.
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SPF record has become obselete, if it is configured then it must be the same as the one present in the TXT record
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The mecanism "PTR" has to be the last tag in SPF record. Be sure you don't have any dupplicates entry in your field.
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To avoid issue with DMARC, it is strongly recommended to configure only one.
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According to the RFC 7489 section 6.3, the DMARC version must be the first tag in the list.
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According to the RFC 7489 section 6.3, the procedure value must be none, quarantine or reject.
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According to the RFC 7489 section 6.3, the subdomain procedure value must be none, quarantine or reject.
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The size of the public key must be bigger than 1024 bits.
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The X-XSS-Protection header was not found.
The HTTP X-XSS-Protection response header is a feature of Internet Explorer, Chrome and Safari that stops pages from loading when they detect reflected cross-site scripting (XSS) attacks.
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The X-Content-Type-Options header was not found.
The only defined value, "nosniff", prevents Internet Explorer from MIME-sniffing a response away from the declared content-type. This also applies to Google Chrome, when downloading extensions.
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Host has no "A" (IPv4) field for www.
WWW host is not required for a website, but it's better to have one.
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Host has no "AAAA" (IPv6) field for www.
If you configure a WWW host for your website, it is recommended to have an IPv6.
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The Content-Security-Policy header was not found.
The HTTP Content-Security-Policy response header allows web site administrators to control resources the user agent is allowed to load for a given page. With a few exceptions, policies mostly involve specifying server origins and script endpoints. This helps guard against cross-site scripting attacks (XSS).
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The domain must have an A field in order for the website to be accessible.
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It is highly recommended to have an IPv6 for the website.
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This test verifies the presence of a website for the given IP or domain. Then scans port 80.
If the domain or IP is pointing to a website then port 80 must be open so that it can be accessed from a browser.
Otherwise port 80 must be closed.
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This test verifies the presence of a website for the given IP or domain. Then scans port 443.
If the domain or IP is pointing to a website then port 443 must be open so that it can be accessed from a browser.
Otherwise port 443 must be closed.
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To avoid giving details to malicious people, the version of the server should not be visible.
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To avoid giving details to malicious people, the technology that supports the application should not be visible.
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Using "HttpOnly" instruction prevents someone to access to cookies via Javascript. The secure flag will allow you to prevent a cookie from ever being communicated in simple HTTP. (RFC 6265 section 8.3)
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