projecteuler.net Technology Profile

Widgets

This website domain is on the Apple TLD whitelist which may potentially mean these domains will appear in autocomplete when looking up URLs on Apple products.

Font Awesome

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Iconic font and CSS toolkit.

Fonts

CrUX Dataset

CrUX Dataset Usage Statistics · Download List of All Websites using CrUX Dataset

CrUX is a data collection system that gathers information about how real users interact with websites. This website is included in the user experiences data gathered from Google Chrome and thus considered sufficiently popular on the Internet.

CrUX Top 500k

CrUX Top 500k Usage Statistics · Download List of All Websites using CrUX Top 500k

Relative measure of site popularity within the CrUX dataset, measured by the total number of navigations on the origin. This site is in the top 500k.

Cloudflare Radar

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The website appears on the Cloudflare Radar Top 1m sites list

Cloudflare Radar Top 500k

Cloudflare Radar Top 500k Usage Statistics · Download List of All Websites using Cloudflare Radar Top 500k

The website appears in the Cloudflare Radar Top 500,000.

Frameworks

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PHP

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PHP is a widely used general-purpose scripting language that is especially suited for Web development and can be embedded into HTML.

Mobile

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Viewport Meta

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This page uses the viewport meta tag which means the content may be optimized for mobile content.

IPhone / Mobile Compatible

IPhone / Mobile Compatible Usage Statistics · Download List of All Websites using IPhone / Mobile Compatible

The website contains code that allows the page to support IPhone / Mobile Content.

Apple Mobile Web Clips Icon

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This page contains an icon for iPhone, iPad and iTouch devices.

Content Delivery Network

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jsDelivr

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A free CDN where Javascript developers can host their files. Encompasses MaxCDN, and BootstrapCDN.

CDN JS

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CloudFlare's CDN with popular javascript frameworks available.

Cloudflare JS

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Loads content from Cloudflare CDN.

Cloudflare

Cloudflare Usage Statistics · Download List of All Websites using Cloudflare

Automatically optimizes the delivery of your web pages so your visitors get the fastest page load times and best performance.

JavaScript Libraries and Functions

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Polyfill IO

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Hosted polyfill script.

JavaScript Library

SSL Certificates

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RapidSSL

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RapidSSL certificate provider.

SSL by Default

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The website redirects traffic to an HTTPS/SSL version by default.

DigiCert SSL

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Certificate provided by DigiCert.

Root Authority

HSTS

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Forces browsers to only communicate with the site using HTTPS.

Email Hosting Providers

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SPF

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The Sender Policy Framework is an open standard specifying a technical method to prevent sender address forgery.

DMARC

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A technical specification created by a group of organizations that want to help reduce the potential for email-based abuse

DMARC

DMARC Reject

DMARC Reject Usage Statistics · Download List of All Websites using DMARC Reject

The domain has a DMARC policy of 'Reject'. This policy tells the mail server to reject emails that fail DMARC checks, preventing them from being delivered at all.