Whoscall.com Site Title

Whoscall | Your Caller ID App and Spam Blocking App

Whoscall.com Meta Description

Whoscall helps you identify unknown callers and SMSs. No more spam and telemarketing calls from now on! Need a caller ID finder? Download for free now!

Whoscall.com Test Results

whoscall.com Mobile Usability: 100/100


whoscall.com Mobile Speed: 49/100

Quick overview:
Optimize images
Properly formatting and compressing images can save many bytes of data.
Optimize the following images to reduce their size by 934.9KiB (89% reduction).
Compressing and resizing https://whoscall.com/static/images/index_blog/blog-4_en-US.png?q=1575273653 could save 437.3KiB (87% reduction).
...
Avoid landing page redirects
Your page has 2 redirects. Redirects introduce additional delays before the page can be loaded.
Avoid landing page redirects for the following chain of redirected URLs.
http://whoscall.com/
...
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.
None 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://whoscall.com/static/css/application.min.css?q=1575273653
Leverage browser caching
Setting an expiry date or a maximum age in the HTTP headers for static resources instructs the browser to load previously downloaded resources from local disk rather than over the network.
Leverage browser caching for the following cacheable resources:
https://connect.facebook.net/en_US/fbevents.js (20 minutes)
...
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 906B (14% reduction).
Minifying https://whoscall.com/en-US/ could save 906B (14% reduction) after compression.
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 196B (41% reduction).
Compressing https://whoscall.com/static/js/new-header.min.js?q=1575273654 could save 196B (41% reduction).

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