Last updated: September 2026
Global rank: Worldwide · 2026-09
#1,378,989
AI visibility: Grade C
67
SEO health: Latest audit
0
Visits
2
per month, estimated
Keywords
5
ranking in Google
Organic share
100%
2 organic visits
LLMS.txt
Published
168 lines AI engines can read
You're seeing the free preview of toppers.jp
toppers.jp Company Profile
TOPPERS Project stands as a cornerstone in Japan's embedded software landscape, delivering high-performance real-time operating systems (RTOS) tailored for resource-constrained devices. Originating from collaborative efforts among Japanese research institutions and tech firms, it emphasizes reliability, minimal footprint, and conformance to international standards like ITRON. The project supports a wide array of micr…
Founded in 1984 (about 42 years ago), TOPPERS Project is based in Tokyo, Japan. Its workforce is listed as between 11 and 50 employees. Its profile files it under Software & Internet, with further tags for Hardware, Robotics & Semiconductors; Embedded Systems; and RTOS. Products on record for it: TOPPERS/JSP Kernel, TOPPERS/ASP Kernel, TOPPERS/HRP2 Multicore RTOS and Development Tools & Simulators. Total funding on record is Bootstrapped. Its tagline reads: "Innovative open-source RTOS powering embedded systems worldwide".
- Sector
- Software & Internet
- Headquarters
- Tokyo, Japan
- Founded
- 1984
- Employees
- 11-50
- Revenue
- Not Disclosed
- Funding
- Bootstrapped
- Products
- TOPPERS/JSP Kernel, TOPPERS/ASP Kernel, TOPPERS/HRP2 Multicore RTOS, Development Tools & Simulators
toppers.jp Web Traffic Statistics
Key findings
- TOPPERS Project (Software & Internet) is ranked #1,378,989 worldwide in our September 2026 domain ranking, up 394,854 places from #1,773,843 in August 2026.
- It is estimated to receive about 2 visits a month from search, 100% of it organic, across 5 ranking keywords.
- Its AI visibility score is 67 out of 100 (grade C), with a published llms.txt of 168 lines.
- Its last technical audit scored 0/100, with "Implement Title and Meta Description" the highest-priority fix.
| Month | Rank | Move |
|---|---|---|
| September 2026 | #1,378,989 | ▲ 394,854 |
| August 2026 | #1,773,843 | ▲ 11,628 |
| July 2026 | #1,785,471 | ▲ 255,582 |
| June 2026 | #2,041,053 | — |
| May 2026 | #2,041,053 | ▼ 208,479 |
| April 2026 | #1,832,574 | ▼ 1,200,047 |
| February 2026 | #632,527 | — |
What this company does
TOPPERS Project stands as a cornerstone in Japan's embedded software landscape, delivering high-performance real-time operating systems (RTOS) tailored for resource-constrained devices. Originating from collaborative efforts among Japanese research institutions and tech firms, it emphasizes reliability, minimal footprint, and conformance to international standards like ITRON. The project supports a wide array of micr…
Our read on the site
The overall SEO health of https://toppers.jp is critically poor, with missing essential on-page elements such as title, meta description, and headers. Additionally, significant technical issues, including the absence of a viewport meta tag, robots.txt, and sitemap.xml, contribute to a suboptimal user experience and hin…
toppers.jp Traffic and Visitor Engagement
Search engines send toppers.jp an estimated 2 visits a month. Effectively all of it is organic — about 2 visits from unpaid results. Spread across 5 ranking keywords, that averages roughly 0.4 organic visits per keyword.
Monthly visits
2
Latest estimate
Change
No monthly history yet
It starts building from the first scan
Organic visits
2
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.
toppers.jp AI Visibility
toppers.jp scores 67 out of 100 on our AI visibility scale, grade C. It takes full marks for LLMS.txt and Structured data. The biggest gap is SEO health, at 0 of 20 points (0/100), worth 20 points if closed. It also loses points on Crawlability (0/10) and Company profile (22/25).
Grade C
Scored from this domain's own data — llms.txt, profile completeness, technical health, crawlability and structured data.
Present
7/8 core fields
0/100
robots ✗ · sitemap ✗
Detected
Fix these first
- → Complete your company profile so AI answers about you stay accurate.
- → Add robots.txt and sitemap.xml so AI crawlers can read you.
toppers.jp LLMS.txt
The llms.txt on toppers.jp runs to 168 lines (8,467 characters) across 12 sections, last generated in May 2026. It introduces the site as "TOPPERSプロジェクト/INDEX". It tells AI engines the business works in Embedded Software, Real-Time Operating Systems and IoT Development. It describes 5 products, with prices such as TOPPERS/JSP Kernel at Free (Open Source), TOPPERS/ASP Kernel at Free (Open Source) and TOPPERS/HRP2 at Free (Open Source). Services it lists include Porting Support, Certification Assistance, Commercial Training and Enterprise Support. The audience it names is Embedded Engineers, Firmware Developers, IoT Architects, aged 25-55 (Japan, Global). Technologies it mentions include C Programming, Assembly, Makefiles, Git and HTTPS. The keywords it claims start with "TOPPERS RTOS", "embedded kernel", "real-time OS" and "ITRON specification".
Status
Published
AI engines can read it
Lines
168
In the file
Size
8.5K
Characters
Sections
12
Updated May 11, 2026
What the file says
# TOPPERSプロジェクト/INDEX ## About The TOPPERS Project delivers cutting-edge open-source real-time operating systems designed specifically for embedded applications. With roots in Japan's TRON initiative, it offers multiple kernel variants like JSP for tiny devices, ASP for general embedded use, and HRP2 for high-reliability multicore systems. Developers rely on TOPPERS for its predictable scheduling, tiny memory footprint, and compliance with safety standards essential for automotive, medical, and industrial gear. The community maintains ports for dozens of MCUs including Renesas, ARM, and RISC-V architectures. Tools for simulation, debugging, and performance analysis streamline development workflows. Its battle-tested code powers everything from consumer electronics to mission-critical infrastructure. Japanese engineering rigor ensures exceptional stability and efficiency. As IoT explodes, TOPPERS adapts with features for wireless connectivity and edge computing. Free availability accelerates prototyping while optional commercial support caters to enterprises. Technical docs and forums provide hands-on guidance for global users. Ongoing evolution keeps pace with hardware advances like AI accelerators. In summary, TOPPERS turns constrained silicon into responsive, reliable systems. **Areas of Work:** Embedded Software, Real-Time Operating Systems, IoT Development ## Things to R
Sections in the file
Areas of work
Keywords it claims
Technologies
Products it tells AI about
- TOPPERS/JSP KernelFree (Open Source)
- TOPPERS/ASP KernelFree (Open Source)
- TOPPERS/HRP2Free (Open Source)
- TOPPERS SimulatorFree (Open Source)
- Arduino TOPPERS PortFree (Open Source)
Services it tells AI about
- Porting SupportContact for quote
- Certification AssistanceContact for quote
- Commercial TrainingContact for quote
- Enterprise SupportSubscription-based
- Custom ExtensionsContact for quote
Competitors it names
Audience it targets
Embedded Engineers, Firmware Developers, IoT Architects · 25-55 · Japan, Global
Company type
Private
toppers.jp Organic Keywords
Google lists toppers.jp for about 5 keywords, which together bring an estimated 2 organic visits a month.
Ranking keywords
5
Found in Google for this domain
Visits they bring
2
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
toppers.jp SEO Audit
The latest technical audit of toppers.jp scored 0 out of 100 overall. The audit makes 20 recommendations in all, and 4 of the 4 listed first are rated high priority or critical.
Overall
SEO
Performance
Accessibility
Fix these first
- CriticalImplement Title and Meta Description
- HighAdd H1 and H2 Tags
- CriticalCreate Robots.txt File
- CriticalGenerate Sitemap.xml
16 more recommendations, with the exact changes and the pages they apply to, are in the full report.
toppers.jp Competitors and Alternatives
TOPPERS Project's company profile names Zephyr Project, FreeRTOS, NuttX and RIOT OS as competitors. Its own llms.txt adds https://www.contiki-os.org and https://chibios.org. Outside its market, the domains ranked closest to it in our worldwide ranking are hostgiantservers.com, wncinc.com, hightree.com and unique-u.biz.
toppers.jp 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.
toppers.jp 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 toppers.jp 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
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