Sites using Theory7
Get told when a new site ships with Theory7.
Stackdar watches every launch we detect and sends you the ones using Theory7, by email, Slack or webhook. On every plan, from £15 a month.
See how alerts workFound via: StackScope Discovery (Indie) 6 · StackScope Wider Web 193
Theory7 has been detected on 199 launches we've crawled, with 58 of those in September 2026 (0.0% of the month's launches so far). The 7-day rolling share is 0.0%, roughly steady week on week. Most recent detection: Cybertraining voor je hele organisatie - Cyberskills Academy, yesterday.
It's most commonly paired with Google Fonts, jQuery, and Font Awesome. By product type, the launches using it are most often Health (28%), Content (14%), and Developer Tools (14%).
What kind of products ship with Theory7
29 launches
Domain endings using Theory7
199 sites
- .com 43.22%
- .nl 23.62%
- .eu 13.07%
- .net 3.52%
- .org 3.52%
- .uk 3.52%
- .es 2.01%
- .app 1.51%
- .io 1.51%
- .online 1.01%
- .ai 0.50%
Country
54 of 199 sites, where we are semi-confident of the country.
-
Netherlands
81.48%
-
United Kingdom
11.11%
-
Spain
7.41%
Share of new sites using Theory7
Each dot is one launch day. Line is the 7-day rolling average. 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.
DNS Provider leaders
| Tool | % of launches | % of category | ||
|---|---|---|---|---|
| #1 | – |
Cloudflare DNS
|
32.78% | 34.73% |
| #2 | – |
Hostinger DNS
|
12.81% | 13.56% |
| #3 | – |
Namecheap DNS
|
7.52% | 7.96% |
| #4 | – |
Vercel DNS
|
4.18% | 4.43% |
| #5 | ▲2 |
Squarespace DNS
|
3.27% | 3.46% |
| … | ||||
| #291 | ▲160 | Theory7 Current page | 0.01% | 0.01% |
Percentages show adoption among indie launches: the share of all analysed launches, and of launches using any DNS Provider tool.Among August launches it ranked #282 in DNS Provider, up from #442 in July. All 12066 in DNS Provider →
Often used with
| Tool | Sites |
|---|---|
Google Fonts
|
174 |
jQuery
|
144 |
Font Awesome
|
139 |
Font Awesome Pro
|
135 |
| Theory7 Email | 47 |
Tools most often detected on the same sites as Theory7.
Recent launches we can show
6 of the 199 sites using Theory7 are product launches we list individually. The other 193 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
ManualNinja — AI Helpdesk for Appliance Installers & Technicians
Less reminding. More independence. Calmer days. - Flowly
Productivity
Trail-Safe — watch-only GPS tracker with push-to-talk & family location
Monteo — Plannen, werkbonnen & facturen in één tool
Developer Tools
The Guest App — Simple workflow for short-term rentals
Productivity
The StackScope API serves all 199 sites using Theory7, filterable and exportable, from £15 a month.