https://getbootstrap.com/docs/3.3/dist/css/bootstrap.min.css

Category: Software Development

Keywords: css code docs build built world custom github navbar script source themes content started examples template bootstrap framework components responsive


Last fetched: 2019-04-17T06:34:25.528601+00:00

HTTP status: 5 Sub-resource URL


TLS/SSL configuration report

TLS score
C
Grade capped at C
Grade capped due to 64-bit cipher (IDEA, RC2, DES or 3DES)

See full SSL/TLS security report for getbootstrap.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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  • Strict-Transport-Security: max-age=15552000; 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.

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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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  • Expect-CT: max-age=604800, report-uri="https://report-uri.cloudflare.com/cdn-cgi/beacon/expect-ct"

    The Expect-CT header allows sites to opt in to reporting and/or enforcement of Certificate Transparency requirements, which prevents the use of misissued certificates for that site from going unnoticed. When a site enables the Expect-CT header, they are requesting that the browser check that any certificate for that site appears in public CT logs.

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  • Server: cloudflare

    Announces web server software and optionally version details.

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