Benchmarks
Each test names its sample, its method and its date, and ships the raw CSV under CC BY 4.0. Read the method before you cite a number. New test on the second Thursday of every month, in the newsletter or by RSS.
I build LeadLayer, a competitor to some vendors tested here. It is tested the same way and its losses are published.
Email accuracy
1,000 contacts from one vendor, run through three validators. Bounce and catch-all rates by industry and seniority. Vendor rotates monthly.
First test: Thu 12 Nov 2026
Technographic hit rate
A fixed 100-domain panel with hand-verified ground truth. Precision and recall per provider, including Crawlfox.
First test: December 2026
Pricing log
Every plan, credit and overage change at Apollo, ZoomInfo, Clay, Lusha, Cognism and others. Screenshot, date, diff.
No published tests yet.
Coverage
How many of a known company list each vendor actually has, and with what fields filled.
No published tests yet.