As of October 9, 2026, TechLeads detects Lessonly on 4 websites: 0.00% of Campaign Management detections, the 23rd most-used of 31 Campaign Management technologies we track.
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TechLeads. "Companies Using Lessonly." Data as of October 9, 2026. https://techleads.fyi/technology/lessonlyHTML link
<a href="https://techleads.fyi/technology/lessonly">Companies using Lessonly (TechLeads data)</a>Sample results for Lessonly
| Rank | Icon | Website | Title | Description | Company | Country | Language |
|---|---|---|---|---|---|---|---|
| #1 | Frameless Only | Specializes in frameless shower doors, glass enclosures, and custom frameless shower installations for bathrooms. | Frameless Only | US | en | ||
| #2 | Lessonly by Seismic | Learning management system (LMS) platform for employee training, onboarding, and skill development with interactive lessons. | Lessonly (Seismic) | US | en | ||
| #3 | Ductless Only | Provider of ductless mini-split air conditioning and heating systems, installation services, and HVAC solutions. | Ductless Only | US | en | ||
| #4 | Colorless Only | Online store for colorless or clear cosmetics, skincare, and beauty products emphasizing transparency and minimalism. | Colorless Only | US | en |
Complete Lessonly website dataset in CSV. One-time purchase.
Secure checkout · 7-day download accessTechnologies most frequently detected on the same websites as Lessonly.
The most-used Campaign Management technologies in the TechLeads index, by number of websites. Lessonly accounts for 0.00% of Campaign Management detections (4 websites).
| Technology | Websites | Share of Campaign Management |
|---|---|---|
| Sendgrid | 522,135 | 89.3% |
| Qualtrics Mail | 23,482 | 4.0% |
| Constant Contact Mail | 18,039 | 3.1% |
| Campaign Monitor | 11,348 | 1.9% |
| EKM Email Marketing | 2,989 | 0.51% |
| UniSender | 2,833 | 0.48% |
| Flodesk | 1,786 | 0.31% |
| SMTP.com | 596 | 0.10% |
| SiteBuildIt | 469 | 0.08% |
| Granicus | 281 | 0.05% |
TechLeads scans public websites and identifies Lessonly from signals in the page HTML, scripts, cookies, HTTP headers and DNS records. Website counts refresh daily; this page uses data from October 9, 2026. Counts only include websites we have scanned, so they can differ from other providers.
Team management system.
2 new sites in the last 12 weeks
Team management system.
Our comprehensive database contains 4 websites using Lessonly, making it the most complete Lessonly sites list available. This Lessonly customer websites directory helps businesses detect websites using Lessonly and identify potential leads.
Websites using Lessonly commonly also use Office 365 Mail, Google Cloud CDN, Google Cloud, Microsoft Exchange Online, Nginx — reflecting typical Lessonly technology stacks.
Our Lessonly technology detection system scans millions of websites to identify those powered by Lessonly. This list of sites with Lessonly includes detailed information such as company names, contact details, social media profiles, and website rankings. Whether you're looking for top websites with Lessonly or exploring Lessonly adoption trends, our database provides comprehensive insights.
Each entry in our Lessonly sites list includes valuable data points: domain name, global ranking, company information, contact details, social media links. This makes it easy to detect websites using Lessonly and reach out to potential customers or partners.
Get instant access to the full list of sites with Lessonly in CSV format. Our dataset includes all 4 Lessonly customer websites with complete contact information, perfect for lead generation, market research, and competitive analysis. The data is regularly updated to ensure accuracy and includes the latest Lessonly powered websites.
Sites where we first detected Lessonly, by week (UTC, weeks start Monday). Counts follow our discovery coverage, so weekly totals can vary.