https://pbs.twimg.com/card_img/1192364516589355008/Qbu5Ycm-?format=jpg&name=280x280

Category: Uncategorized

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Last fetched: 2019-11-08T15:01:55.570696+00:00

HTTP status: 5 Sub-resource URL


TLS/SSL configuration report

TLS score
F
Grade capped at F
Certificate path cannot be verified to a known root certificate

See full SSL/TLS security report for pbs.twimg.com

Security-related HTTP headers

  • Access-Control-Allow-Origin: *

    Controls origins (websites) that are allowed to load data from this web service over JavaScript-based APIs as part of Cross-Origin Resource Sharing (CORS) standard. By default, a web browser will refuse to load data over 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.

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  • Server: ECS (fcn/4190)

    Announces web server software and optionally version details.

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  • Strict-Transport-Security: max-age=631138519

    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.

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  • X-Content-Type-Options: nosniff

    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.

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