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Site Info - Usps.com

Overview of web technologies used by Usps.com.

Website Background

Welcome | USPS
Welcome to USPS.com. Find information on our most convenient and affordable shipping and mailing services. Use our quick tools to find locations, calculate prices, look up a ZIP Code, and get Track & Confirm info.

Description on Homepage

10 July 1997

Online since

Number 287 of all websites according to Alexa

Popularity rank

CountryVisitorsCountry Rank
United States82.1%65
China3.6%1,062
Japan2.4%1,323

Main visitors locations

Java is a general-purpose language originally developed by Sun Microsystems.

Java

JavaScript is a lightweight, object-oriented, cross-platform scripting language, mainly used within web pages.

JavaScript

jQuery is a JavaScript library that simplifies HTML document traversing, event handling, animating and Ajax interaction. Originally developed by John Resig.

jQuery 3.2.1
(3% of sites use a newer version)

Modernizr is a JavaScript library that detects HTML5 and CSS3 features in the visitors browser.

Modernizr

HTML5 is the fifth revision of the HTML standard.

HTML5

Windows-1252 is an 8-bit character encoding, designed to cover West European alphabets.

Windows-1252

UTF-8 (8-bit Unicode Transformation Format) is a variable-length character encoding for Unicode, which is backwards compatible with ASCII.

UTF-8
(used until recently)

PNG (Portable Network Graphics) is a lossless compression image format, suitable to store graphics with uniformly colored areas, and originally introduced as a free, open-source successor of GIF.

PNG

JPEG (Joint Photographic Experts Group) is a lossy compression method suitable to store photographic images.

JPEG

Scalable Vector Graphics (SVG) is an XML-based vector image format.

SVG

External Cascading Style Sheets define style rules in a separate CSS file.

External CSS

Embedded Cascading Style Sheets define a set of style rules in a <style> element within a web page.

Embedded CSS

Inline Cascading Style Sheets define style rules directly within an (X)HTML element using the style attribute.

Inline CSS

Gzip (GNU zip) is a file compression algorithm.

Gzip Compression

The Internet Protocol version 6 (IPv6) provides amongst others a vastly larger address space than the preceding version 4. We consider a website to support IPv6 if a 128-bit address is assigned to it, regardless of the content delivered at that address.

IPv6

The websites redirects visitors to its www subdomain, e.g. from example.com to www.example.com.

Default subdomain www

The websites redirects visitors to use SSL encryption, e.g. from http://example.com/ to https://example.com/.

Default protocol https

Session cookies are temporary cookies, which are deleted when the user closes the browser.

Session Cookies
(used until recently)

Persistent cookies with an expiration time between 1 and 10 years.

Cookies expiring in years
(used until recently)

HttpOnly cookies are used only in the HTTP protocol and not in client side scripts, which may increase security.

HttpOnly Cookies
(used until recently)

Secure cookies are used only via an encrypted connections, which may increase security.

Secure Cookies
(used until recently)

JSON-LD (JavaScript Object Notation for Linked Data) is a method of encoding Linked Data using JSON.

JSON-LD

Sectigo (formerly Comodo CA) is a US-based SSL certificate authority.

Sectigo

The jQuery CDN hosts copies of the jQuery library, provided by MaxCDN.

jQuery CDN

Google Analytics is a free service to get detailed statistics about the visitors of a website, provided by Google.

Google Analytics

The Google Advertising network consists of AdSense, DoubleClick and other services.

Google Ads

Amazon Associates is the affiliate program of Amazon.

Amazon Associates

AppNexus is an online advertising platform.

AppNexus

The Google Tag Manager is a Google service to support webmasters to manage tags on their websites.

Google Tag Manager

Akamai is a content delivery network.

Akamai
hosting info based on data from ipinfo.io

Commercial entities

.com

United States
France
Netherlands

English

 

 

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