Last updated: September 2026
Global rank: Worldwide · 2026-09
#80,847
AI visibility: Grade A+
90
SEO health: Latest audit
73
Visits
12.5K
per month, estimated
Keywords
1.3K
ranking in Google
Organic share
100%
12.5K organic visits
LLMS.txt
Published
133 lines AI engines can read
You're seeing the free preview of stoplight.io
stoplight.io Company Profile
Stoplight provides a platform centered on OpenAPI for handling the design, documentation, and testing phases of API work. Teams can build out API descriptions, produce reference materials, and spin up mock servers from one interface instead of juggling separate programs. The setup supports both visual editing and code views, along with built-in checks that flag issues early. Open-source projects connected to the plat…
Stoplight was founded in 2015, about 11 years ago, and is headquartered in Austin, United States. Its workforce is listed as between 51 and 200 employees. It was founded by Jason Harmon. Its profile files it under API Management, with further tags for Software Development, Documentation Tools and SaaS. Products on record for it: API Design Tool, Documentation Management and Mock Servers. Reported revenue is $8.3M (2025), and total funding is listed at $50M. Its tagline reads: "OpenAPI Design & Documentation Management Tool".
- Sector
- API Management
- Headquarters
- Austin, United States
- Founded
- 2015
- Employees
- 51-200
- Revenue
- $8.3M (2025)
- Funding
- $50M
- Founders
- Jason Harmon
- Products
- API Design Tool, Documentation Management, Mock Servers
stoplight.io Web Traffic Statistics
Key findings
- Stoplight (API Management) is ranked #80,847 worldwide in our September 2026 domain ranking, inside the top 100,000, down 18,165 places from #62,682 in August 2026.
- It is estimated to receive about 12,500 visits a month from search, 100% of it organic, across 1,329 ranking keywords.
- Its AI visibility score is 90 out of 100 (grade A+), with a published llms.txt of 133 lines.
- Its last technical audit scored 73/100, with "Improve Page Load Speed" the highest-priority fix.
| Month | Rank | Move |
|---|---|---|
| September 2026 | #80,847 | ▼ 18,165 |
| August 2026 | #62,682 | ▲ 1,822 |
| July 2026 | #64,504 | ▼ 3,519 |
| June 2026 | #60,985 | — |
| May 2026 | #60,985 | ▼ 15,687 |
| April 2026 | #45,298 | ▲ 9,578 |
| March 2026 | #54,876 | ▲ 4,625 |
| February 2026 | #59,501 | — |
What this company does
Stoplight provides a platform centered on OpenAPI for handling the design, documentation, and testing phases of API work. Teams can build out API descriptions, produce reference materials, and spin up mock servers from one interface instead of juggling separate programs. The setup supports both visual editing and code views, along with built-in checks that flag issues early. Open-source projects connected to the plat…
Our read on the site
Significant improvements needed.
stoplight.io Traffic and Visitor Engagement
stoplight.io draws an estimated 12,500 visits a month from search engines. Effectively all of it is organic — about 12,500 visits from unpaid results. Spread across 1,329 ranking keywords, that averages roughly 9.4 organic visits per keyword.
Monthly visits
12.5K
Latest estimate
Change
No monthly history yet
It starts building from the first scan
Organic visits
12.5K
100% of all traffic
Paid visits
0
No paid search detected
Organic vs paid
100%
0%
We don't hold a month-by-month history for this domain yet.
The traffic dashboard builds one from the first scan onwards.
stoplight.io AI Visibility
On our AI visibility scale stoplight.io earns 90 of 100 points, a grade A+. It takes full marks for LLMS.txt and Structured data. The biggest gap is Crawlability, at 5 of 10 points (robots ✗ · sitemap ✓), worth 5 points if closed. It also loses points on Company profile (22/25) and SEO health (18/20).
Grade A+
Scored from this domain's own data — llms.txt, profile completeness, technical health, crawlability and structured data.
Present
7/8 core fields
92/100
robots ✗ · sitemap ✓
Detected
Fix these first
- → Complete your company profile so AI answers about you stay accurate.
- → Add robots.txt so AI crawlers can read you.
stoplight.io LLMS.txt
The llms.txt on stoplight.io runs to 133 lines (5,391 characters) across 12 sections, last generated in April 2026. It introduces the site as "Stoplight". It tells AI engines the business works in API Management, Software Development and Documentation Tools. It describes 3 products, including API Design Tool, Documentation Management and Mock Servers. Services it lists include API Consulting. The audience it names is Developers, Tech Teams, Businesses, aged 25-54 (Global). Technologies it mentions include React, Node.js, AWS and PostgreSQL. The keywords it claims start with "OpenAPI design tool", "API documentation", "mock servers" and "API management".
Status
Published
AI engines can read it
Lines
133
In the file
Size
5.4K
Characters
Sections
12
Updated Apr 9, 2026
What the file says
# Stoplight ## About Stoplight is an innovative platform that simplifies the process of creating OpenAPI descriptions, documentation, and mock servers. Designed for developers and teams, Stoplight enables users to build and document APIs faster without requiring specialized knowledge. By centralizing API design and management, Stoplight enhances collaboration and streamlines workflows, making it easier for organizations to deliver high-quality APIs efficiently. **Areas of Work:** API Management, Software Development, Documentation Tools ## Things to Remember - **Website:** https://stoplight.io - **Address:** Austin, Texas, United States - **Contact:** [email protected] - **Phone:** +1-512-555-0199 - **Hours:** Mon-Fri: 9AM-5PM - **Timezone:** America/Chicago - **Currency:** USD - **Company Type:** Private - **Employees:** 75 employees - **Revenue:** $8.3M - **Hiring Status:** Yes, actively hiring ## Products - **API Design Tool** (Contact for pricing): A comprehensive tool for designing and documenting APIs using OpenAPI specifications. - **Documentation Management** (Contact for pricing): Streamline your API documentation process with an easy-to-use management system. - **Mock Servers** (Contact for pricing): Create mock servers to simulate API responses for testing and development. ## Services - **API Consulting** ($150/hour): Expert consulting services to help organizat
Sections in the file
Areas of work
Keywords it claims
Technologies
Products it tells AI about
- API Design ToolContact for pricing
- Documentation ManagementContact for pricing
- Mock ServersContact for pricing
Services it tells AI about
- API Consulting$150/hour
Competitors it names
Audience it targets
Developers, Tech Teams, Businesses · 25-54 · Global
Company type
Private · actively hiring
stoplight.io Organic Keywords
Google lists stoplight.io for about 1,329 keywords, which together bring an estimated 12,500 organic visits a month.
Ranking keywords
1.3K
Found in Google for this domain
Visits they bring
12.5K
Estimated organic visits a month
Top ranking keywords
No ranked-keyword data cached for this domain yet.
Ranked Keywords pulls the full list on its first run.
What it ranks for
stoplight.io SEO Audit
The latest technical audit of stoplight.io scored 73 out of 100 overall. Performance is its weakest area at 52, while SEO scores highest at 92. The audit makes 10 recommendations in all, and 4 of the 4 listed first are rated high priority or critical.
Overall
SEO
Excellent
Performance
Accessibility
Excellent
Fix these first
- CriticalImprove Page Load Speed
- HighImplement Robots.txt
- HighOptimize Title Tags and Meta Descriptions
- HighEnhance Mobile Responsiveness
6 more recommendations, with the exact changes and the pages they apply to, are in the full report.
stoplight.io Competitors and Alternatives
Stoplight's company profile names swagger.io, postman.com and apiary.io as competitors. Its own llms.txt adds redocly.com and openapi.tools. Outside its market, the domains ranked closest to it in our worldwide ranking are ajtmh.org, breinify.com, westfield.com.au and estoquenow.com.br.
stoplight.io Traffic by Country
Which markets this brand actually serves, and where the web links to it from.
Top customer markets
AI estimate · live webWe only measure visitor geography for domains whose analytics are connected to us. For everyone else this is read live from the web and shown as an estimate — never mixed in with the measured numbers.
No market breakdown available for this brand.
Where its backlinks come from
Measured. The country each linking site is hosted in — a real signal of which regions know this brand.
No backlink sample for this domain yet.
Backlink Analytics collects one on its first run.
stoplight.io Backlink Analytics
Who vouches for this domain. Strong, varied links are still the clearest signal of authority — to search engines and to AI engines that cite sources.
We haven't run a backlink crawl for stoplight.io yet, so there are no link counts to show. Backlink Analytics builds the profile on its first run and it appears here after that.
—
links on file
Companies ranked next to stoplight.io
Neighbours of #80,847 in our worldwide ranking — each with its own report.
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