All-in-one free web application security tool. Web application vulnerability and privacy scanner with support for HTTP cookies, Flash, HTML5 localStorage, sessionStorage, CANVAS, Supercookies, Evercookies. Includes a free SSL/TLS, HTML and HTTP vulnerability scanner and URL malware scanner.
Title: "Log in - Mastodon"
Description: "Server run by the main developers of the project It is not focused on any particular niche interest - everyone is welcome as long as you follow our code of conduct!"
Category: Social Network
Keywords: code data user andor email users policy server address conduct content network parties privacy service instance mastodon registered information mastodonsocial
Last fetched: 2020-04-09T09:55:43.246026+00:00
HTTP status: 200 200
Advanced user tracking and fingerprinting techniques are used by websites to bypass privacy protection in web browsers and increase tracking persistence.
b'.createElement("canvas")' … b'.createElement("canvas")' … b'.createElement("canvas")' … b'.getContext("2d")' … b'.getContext("2d")' … b'.getContext("2d")' … b'.getContext("2d")' … b'.getImageData(' … b'String.fromCharCode(' … b'String.fromCharCode(' … b'String.fromCharCode(' … b'String.fromCharCode(' … b'String.fromCharCode(' … b'String.fromCharCode(' … b'String.fromCharCode(' … b'String.fromCharCode(' … b'String.fromCharCode('
Announces web server software and optionally version details.Read more...
Instructs the browser if the current website can be embedded in HTML frame by another website. Since this allows the parent website to control the framed page, this creates a potential for data theft attacks ("clickjacking") and most sensitive websites won't allow them to be framed at all (
deny) or just allow parts of them to be embedded in frames created by themselves only (
Clickjacking protection is enabled+2
A non-standard but widely accepted header introduced originally by Microsoft to disable "content sniffing" or heuristic content type discovery in absence or mismatch of a proper HTTP
Content-Type declaration, which led to a number of web attacks. In general, presence of the header with its only defined value of
nosniff is considered as part of a properly secured HTTP response.
Fuzzy content type guessing is disabled+1
X-XSS-Protection: 1; mode=block
Controls an Cross-Site Scripting (XSS) filters built into the majority of web browsers. The filter is usually turned on by default anyway, but requirement to set the header to
1 became part of canonical set of "secure" HTTP headers. Over time, vulnerabilities in the "sanitizing" mode filter were found, so
1; mode=block became the recommended value. Some companies decided that they don't really need a browser-side XSS filter to mess with their web services which are XSS-free anyway and they became consciously disabling the XSS filter by setting the header to
XSS auditor is enabled in blocking mode+1
HTTP Strict Transport Security (HSTS) is an opt-in security enhancement that is specified by a web application through the use of a special response header.Read more...
HTTP Strict Transport Security is enabled+2
Transport Layer Security (TLS) is enabled+2
base-uri 'none'; default-src 'none'; frame-ancestors 'none'; font-src 'self' https://static-cdn.mastodon.social; img-src 'self' https: data: blob: https://static-cdn.mastodon.social; style-src 'self' 'unsafe-inline' https://static-cdn.mastodon.social; media-src 'self' https: data: https://static-cdn.mastodon.social; frame-src 'self' https:; manifest-src 'self' https://static-cdn.mastodon.social; connect-src 'self' data: blob: https://static-cdn.mastodon.social https://files.mastodon.social wss://mastodon.social; script-src 'self' https://static-cdn.mastodon.social; child-src 'self' blob: https://static-cdn.mastodon.social; worker-src 'self' blob: https://static-cdn.mastodon.social
block-all-mixed-content directive if your website is only accessible over TLS and you are certain it doesn not have any legacy plaintext resources. Otherwise you may add adding
upgrade-insecure-requests directive if your website may still have some legacy plaintext HTTP resources and you want them to be still available rather than blocked
Policy that has
script-src but not
default-src: 'none' allows script execution by injecting plugin resources. Please read our CSP guidance for more details for more details
style-src 'unsafe-inline' allows bypassing of CSP and execution of inlined untrusted scripts. Use
You should definitely try using
'strict-dynamic' to eliminate those long lists of trusted third-party scripts
script-src 'report-sample' as it significantly helps debugging CSP reports. See specification
Want second opinion? Try Google CSP Evaluator.