Age HTTP Header - Original Server Response
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The Age header contains the time in seconds the object has been in a proxy cache.
schema.org micro-markup
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Schema.org is a collaborative, community activity with a mission to create, maintain, and promote schemas for structured data on the Internet, on web pages, in email messages, and beyond.
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X-Cache HTTP Header
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The resource was not in the website cache, and was pulled from the origin server like Varnish servers.
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Meta Description
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A meta description is a 160-character snippet, a meta tag in HTML, that summarizes a page`s content. this website is having meta description of the following : GB KOMMUNIKATION GmbH – Ansässig in Baden-Württemberg entwickeln wir seit Anfang des 20 Jahrhunderts Alternativen für eine Wirtschaft, in der Firmen die Probleme der formalen Hierarchie überwinden. Bisher begegneten wir noch keinem Showstopper.
Vary Header Accept-Encoding
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The Accept-Encoding request HTTP header advertises which content encoding, usually a compression algorithm, the client is able to understand. Using content negotiation, the server selects one of the proposals, uses it and informs the client of its choice with the Content-Encoding response header.
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Block Content Sniffing
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The X-Content-Type-Options response HTTP header is a marker used by the server to indicate that the MIME types advertised in the Content-Type headers should not be changed and be followed. This allows to opt-out of MIME type sniffing, or, in other words, it is a way to say that the webmasters knew what they were doing.
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HSTS - Browser HTTPS Only
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The HTTP Strict-Transport-Security response header (often abbreviated as HSTS) lets a web site tell browsers that it should only be accessed using HTTPS, instead of using HTTP for 3600 seconds
No Cache Content
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Forces caches to submit the request to the origin server for validation before releasing a cached copy.
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