01 · Product name
BuiltWith
Looks up the technologies a website appears to use.
Published by BuiltWith.
In short
BuiltWith is a web-technology lookup. You give it a site and it reports the technologies it detects. The homepage offers a free signup, and lists, datasets, and API access sit behind plans. The pricing page is the rate card. This listing does not quote a dollar amount from it. A technology tag is a detection on that site. It is not proof of who built it or that the tag is still current.
Product pricing strategy
02
Free and paid
BuiltWith is free to start and paid for volume. The homepage offers a free signup. Plans, lead lists, datasets, and API access are on the pricing page. This listing does not quote a dollar figure, because the pricing HTML reviewed here did not yield a reliable price card. Open https://builtwith.com/pricing for the current one.
Utility and features
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BuiltWith’s own description is a technology profiler: find out what a website is built with. The homepage is a lookup box, plus lead lists, trends, an API, datasets, and browser extensions for people who do this in bulk. A free account exists. The plans page is where the paid products are spelled out.
- Technology profile. A domain in, the technologies BuiltWith detects out. That is the line on the homepage.
- Lists and API. Lead lists, datasets, and an API are separate products on the same site. They are how sales teams buy coverage.
- A detection, not a biography. A tag means the profiler saw something. Confirm it on the site, or with urlscan, before you brief it.
For an OSINT note, one lookup is usually enough. You want to know whether a site runs a particular storefront, analytics tag, or framework before you compare it with another property. That detection can be wrong or stale. urlscan shows what a page loaded in one visit. Censys shows certificates and hosts. BuiltWith is the technology profile, sold as much to sales teams as to researchers. Use the slice you need.
- 1
Look up a domain you are allowed to research and read the technology groups.
- 2
Note the date. Tags go stale when a site replatforms.
- 3
Use the free account until you actually need a list or the API.
- 4
Check the pricing page for the current plan. Do not reuse a price from memory.
Caveats
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BuiltWith profiles the technologies it detects on websites. Detection is heuristic and cached. A tag in the last crawl may be gone, and a tag that is present may be a default theme used by thousands of unrelated sites.
The free lookup and the paid lists are different products. Relationships inferred from a shared analytics ID can be an agency, a platform, or a coincidence. Verify before you attribute. This is not a hosting map. Use DNS and the scan indexes for hosts.
Screenshots
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Potential use cases
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- You want to know whether two sites share a storefront platform or an analytics identifier. Look both up in BuiltWith and compare the technology names and the IDs the product shows. The output is that comparison, which can be a shared SaaS template rather than a shared owner. Pivot a domain you are allowed to assess to DNSDumpster or Amass for names, which BuiltWith will not give you. A technology match is not an attribution.
- Before an infrastructure review you are allowed to do, pull the technology profile of the site and write a short note: what the profiler claims is present. Verify anything you will rely on in the page source you can fetch. The profiler’s crawl can be stale. Paid list products exist for finding other sites on a technology. Confirm what your subscription includes on the vendor site. This listing does not invent the price.
- You already track a vendor and you want candidate customers from the list products you pay for. The output is a candidate list. It will include sites that removed the tag last year. Open a sample before you brief the count. Do not treat the count as a market-share figure.
Hard cases
The case where the first result is easy to over-read.
A shared analytics ID is called common ownership
Both sites show the same identifier. That can be a platform that reuses a tag, an agency, or a parent company. Open the sites, look for a published relationship, and if you cannot find one, write ‘shared identifier’ and stop. Do not draw a corporate structure from a profiler row. Amass or DNSDumpster will not confirm it either. They answer a different question.
Questions
Is BuiltWith free?
You can sign up free and run lookups. Larger lists and the API are paid. The pricing page has the current plans.
Does a BuiltWith tag prove who made the site?
No. It is a technology detection. People reuse platforms. The tag does not name a developer.
Citations
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Titled sources. These public pages are what the quotes on this listing come from.
Product
BuiltWith
https://builtwith.com/Pricing
BuiltWith plans
https://builtwith.com/pricingDocumentation
BuiltWith knowledge base
https://kb.builtwith.com/