Sites using Validity
Email deliverability and sender reputation tools.
24 sites
3 found by StackScope, 21 via launch platforms
- StackScope Wider Web 3
- Product Hunt 21
Validity has been detected on 24 launches we've crawled. Most recent detection: Airtasker ChatGPT Plugin, 6 days ago.
It's most commonly paired with Google Search Console, SendGrid, and Google Tag Manager. By product type, the launches using it are most often Design (57%), Productivity (21%), and AI (7%). By domain ending, launches using it are 2.1 times as likely as the average launch to live on a .com domain. The 21 scored launches using Validity average a StackScope score of 8.5 out of 10, against 6.4 across all launches we score.
What kind of products ship with Validity
14 launches
Domain endings using Validity
24 sites
- .com 87.50%
- .ee 12.50%
Country
13 of 24 sites, where we are confident of the country.
-
Australia
84.62%
-
United States
15.38%
Share of new sites using Validity
Each dot is one launch day. Line is the 7-day rolling average; weekly averages before June 2026. Chart starts at first detection.
The shaded part of the chart is measured against a different set of sites. Until 8 July 2026 we only tracked launches from launch platforms; from that date we crawl the wider web as well. The share is a proportion of whatever we were tracking at the time, so it can step at that line without the technology itself changing. For a single continuous measure, switch to launch platforms.
How StackScope detects technologies
⋮ Jul 3, 2026: Email provider detection improved: providers identified from mail configuration are now caught on a site's first crawl. Earlier data may slightly undercount.
Email Security leaders
| Tool | % of launches | % of category | ||
|---|---|---|---|---|
| #1 |
DNSSmartHost
|
0.23% | 53.53% | |
| #2 |
MailSpamProtection
|
0.22% | 52.10% | |
| #3 |
AntiSpamCloud
|
0.09% | 19.96% | |
| #4 | Premium SMTP | 0.02% | 4.33% | |
| #5 |
Proofpoint Essentials
|
0.02% | 3.51% | |
| … | ||||
| #24 | Validity Current page | <0.01% | 0.22% | |
Percentages show adoption among indie launches: the share of all analysed launches, and of launches using any Email Security tool. All 144 in Email Security →
Often used with
| Tool | Launches |
|---|---|
Google Search Console
|
21 |
SendGrid
|
20 |
Google Tag Manager
|
20 |
| HSTS | 20 |
Facebook Domain Verification
|
20 |
Tools most often detected on the same launches as Validity.
Recent launches we can show
21 of the 24 sites using Validity are product launches we list individually. The other 3 are sites we found crawling the wider web: they count towards the figures above, but we do not publish them one by one. How StackScope Discovery works
Airtasker ChatGPT Plugin
AI
RateYourSeats App
Design.com Gift Certificate Maker
Design
Desin.com Poster Maker
Design
Design.com Postcard Maker
Design
Design.com Menus Maker
Design
Design.com Flyer Maker
Design.com Email Signatures
Design.com Invoices Maker
BrandCrowd
BrandCrowd
Design.com Presentation Maker
Productivity
Showing the most recent 12 of 21.
The StackScope API serves all 24 sites using Validity, filterable and exportable, from £15 a month.