Last updated: September 2026
Global rank: Worldwide · 2026-09
#182,760
AI visibility: Grade D
59
SEO health: Latest audit
0
Visits
328
per month, estimated
Keywords
198
ranking in Google
Organic share
100%
328 organic visits
LLMS.txt
Published
82 lines AI engines can read
You're seeing the free preview of addcal.co
addcal.co Web Traffic Statistics
Key findings
- AddCal (Software & Internet) is ranked #182,760 worldwide in our September 2026 domain ranking, up 23,748 places from #206,508 in August 2026.
- It is estimated to receive about 328 visits a month from search, 100% of it organic, across 198 ranking keywords.
- Its AI visibility score is 59 out of 100 (grade D), with a published llms.txt of 82 lines.
- Its last technical audit scored 0/100, with "Implement Title and Meta Description" the highest-priority fix.
| Month | Rank | Move |
|---|---|---|
| September 2026 | #182,760 | ▲ 23,748 |
| August 2026 | #206,508 | ▲ 21,098 |
| July 2026 | #227,606 | ▼ 8,147 |
| June 2026 | #219,459 | — |
| May 2026 | #219,459 | ▲ 10,648 |
| April 2026 | #230,107 | ▼ 9,810 |
| March 2026 | #220,297 | ▲ 32,922 |
| February 2026 | #253,219 | — |
What this company does
AddCal runs a collection of free web-based calculators focused on math, finance, science and everyday unit conversions. The platform gives people quick access to reliable calculation tools without needing to download anything or pay for subscriptions. Users can switch between different calculators in seconds and get clean, easy-to-read results that work on phones, tablets and desktops. The service is built for stude…
Our read on the site
The overall SEO health of https://addcal.co is critically poor, with missing essential on-page elements such as title, meta description, and headings. Additionally, significant technical issues exist, including the absence of a viewport meta tag, robots.txt, and sitemap.xml, which hinder the site's performance and sear…
addcal.co Traffic and Visitor Engagement
Search engines send addcal.co an estimated 328 visits a month. Effectively all of it is organic — about 328 visits from unpaid results. Spread across 198 ranking keywords, that averages roughly 1.7 organic visits per keyword.
Monthly visits
328
Latest estimate
Change
No monthly history yet
It starts building from the first scan
Organic visits
328
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.
addcal.co AI Visibility
addcal.co scores 59 out of 100 on our AI visibility scale, grade D. It takes full marks for LLMS.txt. 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), Company profile (19/25) and Structured data (0/5).
Grade D
Scored from this domain's own data — llms.txt, profile completeness, technical health, crawlability and structured data.
Present
6/8 core fields
0/100
robots ✗ · sitemap ✗
Not 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.
addcal.co LLMS.txt
The llms.txt on addcal.co runs to 82 lines (4,146 characters) across 12 sections, last generated in May 2026. It introduces the site as "AddCal - Free Online Calculators". It tells AI engines the business works in Online Calculators, Math Tools, Financial Calculators and Unit Conversion. It describes 5 products, with prices such as Math Calculator at Free, Financial Calculator at Free / Premium upgrade and Scientific Calculator at Free. Services it lists include Calculator Hosting, Custom Calculator Development, Calculation API Access and Calculation Accuracy Audits. The audience it names is Students, professionals and everyday users, aged 15-55 (Global). Technologies it mentions include HTML5, CSS3, JavaScript and HTTPS. The keywords it claims start with "math calculators", "online calculators", "financial calculators" and "unit conversion calculators".
Status
Published
AI engines can read it
Lines
82
In the file
Size
4.1K
Characters
Sections
12
Updated May 17, 2026
What the file says
# AddCal - Free Online Calculators ## About AddCal runs a collection of free web-based calculators focused on math, finance, science and everyday unit conversions. The platform gives people quick access to reliable calculation tools without needing to download anything or pay for subscriptions. Users can switch between different calculators in seconds and get clean, easy-to-read results that work on phones, tablets and desktops. The service is built for students who need help with homework, engineers who want fast scientific calculations, and finance teams who rely on accurate loan, interest and investment numbers. AddCal keeps the interface simple so anyone can jump in and start calculating right away without learning complicated menus or settings. The tools stay updated with current formulas and conversion rates so results stay trustworthy across different use cases. AddCal earns trust by staying completely free for basic use while offering optional premium features for power users who need saved calculations or extra precision. The company focuses on speed and accuracy rather than flashy design, which has helped it grow through word of mouth among students and working professionals. By removing barriers like sign-ups and paywalls for core functions, AddCal has become a go-to resource for anyone who needs a calculator they can trust on the spot. **Areas of Work:** Online
Sections in the file
Areas of work
Keywords it claims
Technologies
Products it tells AI about
- Math CalculatorFree
- Financial CalculatorFree / Premium upgrade
- Scientific CalculatorFree
- Unit ConverterFree
- Statistics CalculatorFree
Services it tells AI about
- Calculator HostingContact for pricing
- Custom Calculator DevelopmentProject-based
- Calculation API AccessSubscription
- Calculation Accuracy AuditsHourly rate
Competitors it names
Audience it targets
Students, professionals and everyday users · 15-55 · Global
Company type
Private
addcal.co Organic Keywords
Google lists addcal.co for about 198 keywords, which together bring an estimated 328 organic visits a month.
Ranking keywords
198
Found in Google for this domain
Visits they bring
328
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
addcal.co SEO Audit
The latest technical audit of addcal.co scored 0 out of 100 overall. The audit makes 12 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
- HighCreate a Robots.txt File
- CriticalCreate a Sitemap.xml
8 more recommendations, with the exact changes and the pages they apply to, are in the full report.
addcal.co Competitors and Alternatives
AddCal's company profile names https://www.calculator.com, https://www.mathway.com, https://www.calculatorsoup.com and https://www.calculators.org as competitors. Its own llms.txt adds https://www.calculatorslive.com. Outside its market, the domains ranked closest to it in our worldwide ranking are ahrinet.org, serverprovider.net, xinghewanglu.com and atma.hr.
addcal.co Company Profile
AddCal runs a collection of free web-based calculators focused on math, finance, science and everyday unit conversions. The platform gives people quick access to reliable calculation tools without needing to download anything or pay for subscriptions. Users can switch between different calculators in seconds and get clean, easy-to-read results that work on phones, tablets and desktops. The service is built for stude…
Founded in 2022 (about 4 years ago), AddCal is based in Remote, Global. Its workforce is listed as between 1 and 10 employees. Its profile files it under Software & Internet, with further tags for AI, Data & Automation; Online Calculators; and Math Tools. Total funding on record is Bootstrapped. Its tagline reads: "Simple online calculators that help students, professionals and everyday users get accurate results fast".
- Sector
- Software & Internet
- Headquarters
- Remote, Global
- Founded
- 2022
- Employees
- 1-10
- Revenue
- Not Disclosed
- Funding
- Bootstrapped
addcal.co 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.
addcal.co 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 addcal.co 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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Neighbours of #182,760 in our worldwide ranking — each with its own report.
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