MXValidation vs Siel

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

MXValidation compared with Siel
Detail	MXValidation	Siel
What it does	Free email deliverability testing and spam score checker	SMS API and CPaaS platform for OTPs and alerts
Stage	Not given	Not given
Founded	Not given	Not given
Based in	Not given	Not given
Pricing model	Freemium	Paid
Pricing	Free account with 10 test emails per 24 hours; guests can access 3 tests per 24 hours	Not given
Key features	Deliverability score out of 10	REST API and SMPP 3.4 protocol support Routes tested on real phones Campaign management with CSV import OTP by SMS and Telegram Fraud protection with spending and OTP limits Real-time delivery analytics Mobile apps for iOS and Android Public pricing by country Message price shown before sending
What makes it different	Free service with no credit card required Tests real messages through your actual sending platform Provides practical, actionable recommendations	Every route tested on real phones to verify delivery receipts No monthly fee, no minimum contract required Fraud protection stops invalid sends before charging Message price and part count visible before sending One platform across REST API, SMPP, web app and campaigns
Community votes	0	0
DR (Domain Rating by Ahrefs)	Not checked yet no change since last check	Not checked yet no change since last check
Trust Flow (Majestic)	2	0
Citation Flow (Majestic)	10	0
Referring domains (Majestic)	11	0

4 details filled in for both companies.