Meta keywords
Download List of All Websites using Meta keywords
Meta keywords are types of meta tags in the HTML source code of a webpage. They describe the content of a website shortly and concisely,this website is using the following keywords: Aquarium.BG, аквариум, авкариуми, зоомагазин, aquarium, akvarium, zoomagazin, zoo magazini, aksesoari za akvariumi, dekorativni ribki, domashen liubimec, домашен любимец, hailea, eheim, tetra, sera, hikari, seachem, dennerle, ruto, dajana pet, tropical, hydor, sunsun, rs aqua
Vary Header check for User-Agent
Download List of All Websites using Vary Header check for User-Agent
When using the Vary: User-Agent header, caching servers should consider the user agent when deciding whether to serve the page from cache
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HTTP Upgrade Header - HTTP/2
Download List of All Websites using HTTP Upgrade Header - HTTP/2
The HTTP Upgrade mechanism is used to establish HTTP/2 starting from plain HTTP. The client starts an HTTP/1.1 connection and sends an Upgrade: h2c header. If the server supports HTTP/2, it replies with HTTP 101 Switching Protocol status code. The HTTP Upgrade mechanism is used only for cleartext HTTP2 (h2c). In the case of HTTP2 over TLS (h2), the ALPN TLS protocol extension is used instead.
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schema.org micro-markup
Download List of All Websites using schema.org micro-markup
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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No Cache Content
Download List of All Websites using No Cache Content
Forces caches to submit the request to the origin server for validation before releasing a cached copy.
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