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Last fetched: 2018-11-12T22:30:13.965767+00:00
HTTP status: 5 Sub-resource URL
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
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.
XSS auditor is disabled0
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
P3P: policyref="http://cdn.adnxs.com/w3c/policy/p3p.xml", CP="NOI DSP COR ADM PSAo PSDo OURo SAMo UNRo OTRo BUS COM NAV DEM STA PRE"
The header exposes web server version details. These server no purpose apart from making life of security auditors and hackers easier, leading them straight to exploits for this particular version of product-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-Content-Type-Options header is missing