Walgreens Stack

Walgreens.com is built with the following tech stack:

Document Encoding

UTF-8

UTF-8 (8-bit UCS/Unicode Transformation Format) is a variable-length character encoding for Unicode. It is the preferred encoding for web pages.

Mobile

Viewport Meta

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

Document Standards

X-UA-Compatible

Allows a website to define how a page is rendered in Internet Explorer 8, allowing a website to decide to use IE7 style rendering over IE8 rendering.

Open Graph Protocol

The Open Graph protocol enables any web page to become a rich object in a social graph, a open protocol supported by Facebook

Meta Keywords

Meta tag containing keywords related to the page.

Meta Description

The description attribute provides a concise explanation of the page content.

DNS Prefetch

Page contains links to disable or enable DNS prefetching of links in the page.

Canonical Content Tag

Public specification of a preferred URL for a page allows search engines to understand the original location for content.

HREF Lang

Contains language specific links.

Cascading Style Sheets

Cascading Style Sheets (CSS) is a stylesheet language used to describe the presentation of a document written in a markup language. Its most common application is to style web pages written in HTML

Javascript

JavaScript is a scripting language most often used for client-side web development.

Javascript Defer

The defer attribute gives a hint to the browser that the script does not create any content so the browser can optionally defer interpreting the script. This can improve performance by delaying execution of scripts until after the body content is parsed and rendered.

HTML5 DocType

The DOCTYPE is a required preamble for HTML5 websites.

HTML 5 Specific Tags

This page contains tags that are specific to an HTML 5 implementation.

Content Type Options

Used to disable MIME-sniffing for a particular HTTP response.

Language

United States HREF LANG

This webpage has alternate versions available in United States via the use of the hreflang tag.

United States HREF LANG

This webpage has alternate versions available in United States via the use of the hreflang tag.