Screen Size Checker vs ping123

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

Screen Size Checker compared with ping123
Detail	Screen Size Checker	ping123
What it does	Instant screen resolution and viewport size checker for developers and designers	IP information lookup and network risk detection tool
Stage	Not given	Not given
Founded	Not given	Not given
Based in	Not given	Not given
Pricing model	Free	Free
Pricing	Not given	Not given
Key features	Screen Resolution Detection Viewport Size Measurement Device Pixel Ratio (DPR) Check Operating System Detection Browser Version Information Touch Support Detection User Agent String Display Real-time Screen Analysis	Public IP lookup and display Location, ISP, and ASN information Native vs datacenter IP detection Proxy, VPN, and Tor detection AI app access risk checking WebRTC leak detection DNS leak testing System and browser fingerprinting Command line API access Multi-language support
What makes it different	Real-time detection of browser viewport, screen resolution and device specifications without installation Helps developers create responsive websites that look great on all devices Educational resources explaining CSS pixels versus physical measurements Maintained as independent web tool kept fast, readable and useful	Runs on Cloudflare Workers with no dedicated servers or databases Browser-side detection computed only on user's device Multiple data sources including Cloudflare edge network API endpoint for programmatic access
Free plan	Not given	Not given
Open source	Not given	Not given
Platforms	Not given	Not given
Public API	Not given	Not given
Community votes	0	0
DR (Domain Rating by Ahrefs)	23 no change since last check	2 no change since last check
Trust Flow (Majestic)	5	1
Citation Flow (Majestic)	25	18
Referring domains (Majestic)	44	5

4 details filled in for both companies.

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