Protonmail.com Site Title

Secure email: ProtonMail is free encrypted email.

Protonmail.com Meta Description

ProtonMail is the world's largest secure email service, developed by CERN and MIT scientists. We are open source and protected by Swiss privacy law

Protonmail.com Test Results

protonmail.com Mobile Usability: 99/100

Quick overview:
Size tap targets appropriately
Some of the links/buttons on your webpage may be too small for a user to easily tap on a touchscreen. Consider making these tap targets larger to provide a better user experience.
The following tap targets are close to other nearby tap targets and may need additional spacing around them.
The tap target <a href="#" class="navbar-toggle collapsed">Toggle navigation</a> is close to 1 other tap targets .
...

protonmail.com Mobile Speed: 76/100

Quick overview:
Eliminate render-blocking JavaScript and CSS in above-the-fold content
Your page has 1 blocking CSS resources. This causes a delay in rendering your page.
Approximately 1% of the above-the-fold content on your page could be rendered without waiting for the following resources to load. Try to defer or asynchronously load blocking resources, or inline the critical portions of those resources directly in the HTML.
Optimize CSS Delivery of the following:
https://protonmail.com/css/static.css?rel=765db0e5f2
Prioritize visible content
Your page requires additional network round trips to render the above-the-fold content. For best performance, reduce the amount of HTML needed to render above-the-fold content.
The entire HTML response was not sufficient to render the above-the-fold content. This usually indicates that additional resources, loaded after HTML parsing, were required to render above-the-fold content. Prioritize visible content that is needed for rendering above-the-fold by including it directly in the HTML response.
Only about 25% of the final above-the-fold content could be rendered with the full HTML response .
Enable compression
Compressing resources with gzip or deflate can reduce the number of bytes sent over the network.
Enable compression for the following resources to reduce their transfer size by 44.6KiB (66% reduction).
Compressing https://stats.protonmail.ch/proton.js could save 40.4KiB (65% reduction).
...
Optimize images
Properly formatting and compressing images can save many bytes of data.
Optimize the following images to reduce their size by 13.7KiB (38% reduction).
Compressing https://protonmail.com/images/map-image.jpg could save 13.7KiB (38% reduction).
Minify HTML
Compacting HTML code, including any inline JavaScript and CSS contained in it, can save many bytes of data and speed up download and parse times.
Minify HTML for the following resources to reduce their size by 1KiB (12% reduction).
Minifying https://protonmail.com/ could save 1KiB (12% reduction) after compression.

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