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1x1 transparent GIF is frequently used as user tracking mechanism
Category: Advertising & Tracking
Keywords: data free learn suite better center google manager surveys audience business optimize partners products analytics companies marketing solutions attribution measurement
Last fetched: 2020-07-03T12:11:35.217797+00:00
HTTP status: 5 Sub-resource URL
Advanced user tracking and fingerprinting techniques are used by websites to bypass privacy protection in web browsers and increase tracking persistence.
b'GIF8' … b'\x01\x00\x01\x00'
XmlHttpRequest from a website that is not in the same origin, which is a precaution against various types of data stealing attacks. The target server has to explicitly allow the origin domain using the
Access-Control-Allow-Origin (ACAO) header, or it may allow all origins to access it using a wildcard
*. The latter however creates a potential security issue if the website in question is transactional and processing sensitive data, so the wildcard should be only used on websites consciously offering public APIs.
The header sets permissive AJAX access by using wildcard origin
*. It may be OK if the website is a publicly accessible REST API but otherwise it should be not present at all
Strict-Transport-Security: max-age=10886400; includeSubDomains; preload
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
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
Announces web server software and optionally version details.Read more...
Transport Layer Security (TLS) is enabled+2
X-Frame-Options header is missing
X-XSS-Protection header is missing