Our BuiltWith export contains 79,768 domains with a First Detected date in 2026. That is 52.7% of the 151,428 domains in the file.
The latest recorded detection date is August 25, so this is a partial-year count. It is also a count of dates recorded in the supplied file, not a verified count of new Magento stores.
When we first saw the number, it raised an obvious question. Had more than half of this Magento list really appeared in less than eight months?
To investigate, we went back to the data we had bought from BuiltWith. We grouped the dates by month, compared the newer group with older detections, and checked the other date fields.
The result was a striking pattern—but also a reason to be careful about calling it growth.
The number comes directly from the export
We used the All Live Magento Sites — 2026-08-24 CSV and counted domains whose First Detected field fell in 2026.
| First Detected group | Domains | Share of full export |
|---|---|---|
| 2026 | 79,768 | 52.7% |
| Before 2026 | 71,659 | 47.3% |
| Missing date | 1 | Less than 0.1% |
| Total | 151,428 | 100% |
All populated First Detected values could be read as valid calendar dates. Each root domain appeared once in the file.
There is a small difference between the filename and the data: 190 domains have a First Detected date of August 25, 2026, one day after the date in the filename. We included those rows in the 2026 count. A cutoff of August 24 would produce 79,578 instead.
We do not know why the filename and these dates differ. The figures here follow the actual field values, with that difference made explicit.
Most of the 2026 detections are concentrated in three months
The monthly breakdown is far from even.
| First Detected month | Domains | Share of the 2026 group |
|---|---|---|
| January | 1,096 | 1.4% |
| February | 723 | 0.9% |
| March | 1,353 | 1.7% |
| April | 4,221 | 5.3% |
| May | 9,231 | 11.6% |
| June | 21,418 | 26.9% |
| July | 21,115 | 26.5% |
| August, through August 25 | 20,611 | 25.8% |
| Total | 79,768 | 100% |
Percentages are rounded and may not add to exactly 100%.
January through March account for only 3,172 domains. June through the available August dates account for 63,144, or 79.2% of the 2026 group.
The busiest recorded day was June 19, with 1,581 first detections.
This is a clear concentration in the recorded data. It is not, by itself, evidence of a surge in store launches. August is also incomplete, so its total should not be compared with full months as if the observation periods were equal.
First detected is not the same as newly launched
BuiltWith defines First Detected as the date it first detected a technology in use. Its First Indexed field instead describes when the domain was added to its database. Neither field is a store's confirmed launch date. BuiltWith export field definitions
An existing Magento store could first become visible to a detector in 2026. A company could add a new storefront or domain. Changes in crawling or detection could also affect when a technology is recorded.
Some first detections may represent genuinely new stores or merchants moving to Magento. Others may represent older sites being observed for the first time.
The file does not separate these possibilities.
That is why the accurate headline is “79,768 domains have a First Detected date in 2026,” rather than “Magento gained 79,768 new stores.”
The newer group is also much less documented
We checked whether the 2026 group looked similar to domains first detected before 2026.
One difference was particularly clear: country coverage.
| Detection group | Domains | Domains without a country | Share without a country |
|---|---|---|---|
| First detected in 2026 | 79,768 | 63,364 | 79.4% |
| First detected before 2026 | 71,659 | 19,548 | 27.3% |
Nearly four out of five domains in the 2026 group had no country recorded. Among earlier detections, the proportion was closer to one in four.
This does not prove that the newer records are false positives. Newly observed domains may simply have less information available, or the two groups may contain different kinds of sites.
It does show that we cannot assume the 2026 group is a new batch of merchants with the same profile as the older group. Before using it to estimate new business opportunities, we would need to establish which domains represent active stores and identify the businesses behind them.
Checking another date field revealed a larger problem
We hoped First Indexed might help distinguish older domains from recently observed ones. Instead, it exposed a data-quality issue.
Within the 79,768-domain group:
- 24,253 First Indexed values fall after September 3, 2026, the date of this analysis.
- 19,900 fall in 2027 or later.
- The latest value is June 6, 2036.
Those values cannot be interpreted as completed indexing events as of the research date.
We checked whether the local CSV had changed during extraction or analysis. Its contents matched the CSV inside the original ZIP byte for byte. The future values are present in the supplied files; they were not introduced by our date calculations.
That check does not establish the cause. We cannot tell whether the problem arose during export, upstream processing, or another stage of data preparation.
It also does not automatically prove that every First Detected value is wrong. The fields are different. However, the inconsistency is serious enough that the chronology needs clarification before it can support a growth claim.
For this article, 79,768 remains a reproducible count of the recorded First Detected values. It should not be treated as independently validated market activity.
A stricter Magento filter still leaves a large 2026 group
The general export includes some rows without an explicit Magento label in the Ecommerce Platform field.
We repeated the calculation using only the 142,976 domains with the exact Magento label. Of those, 74,259, or 51.9%, had First Detected dates in 2026.
The concentration therefore remains under that narrower filter. It is not explained solely by rows missing the Magento label.
This is a consistency check, not a solution to the date issue or a confirmation that every domain is a working Magento store.
Why this is not a year-over-year growth rate
The same file contains 7,867 domains first detected in 2025. It would be tempting to compare that number with 79,768 and describe a large increase in Magento adoption.
But this is a current-list export, not a complete historical record of every domain detected in each year.
Sites detected in earlier years may have closed, changed platforms, or fallen outside the report. They would not necessarily remain in this list. The annual groups therefore describe the composition of this snapshot, rather than all additions during each year.
We also lack the corresponding count of sites leaving Magento during 2026. New detections alone cannot establish net growth, even if every date is correct.
What we would investigate next
The first priority is to clarify the date fields with BuiltWith or obtain a fresh export that resolves the future-indexing values. That clarification should come before interpreting the monthly jump as a market event.
Next, we would review a sample from both the early months and the June–August concentration. For each domain, we would check whether it is a working store, when Magento was previously visible, and whether it represents a new business, a new storefront, or an older site newly detected.
Historical website captures, technology histories, and merchant or agency launch announcements could help establish actual timing. Comparing repeated exports would then show which domains enter and leave the observed population.
That would let us answer the more valuable question: how much of the apparent increase reflects new Magento activity, and how much reflects changes in what the data provider sees?
What we can say today
The supplied export records 79,768 domains first detected in 2026, representing 52.7% of the complete list. Most of those dates fall between June and August.
The concentration is worth investigating. But missing business information, the difference between detection and launch, and the future dates in another field prevent us from treating it as evidence of a Magento growth surge.
The file gives us a clear count and a useful research question. Establishing how many of those domains are genuinely new Magento stores requires another layer of evidence.
Data and methodology
We analyzed the purchased All Live Magento Sites — 2026-08-24 CSV containing 151,428 unique root domains. We parsed First Detected as an ISO calendar date and grouped populated values by year and month. One row had no First Detected date; no populated values failed date parsing.
The main count includes all rows with First Detected from January 1 through December 31, 2026. Actual dates in that group range from January 1 through August 25. It is not a full-year total or a live count as of September 3.
Monthly percentages use 79,768 as the denominator. The headline share uses 151,428. The narrower platform check uses exact Magento labels and its own denominator of 142,976.
We separately checked First Indexed against September 3, 2026 and compared the local CSV with the copy in the ZIP using SHA-256 hashes. We retained the supplied values without attempting to repair uncertain dates. The counts describe the file as supplied, subject to the chronology issues discussed above.