1lookupData and validation APIs
From $2.00
per 1,000 tech stack lookups; $4.95 on Starter
Website technology data
$99 for 2,000 API credits, pay-as-you-go ($0.0495 a domain; arithmetic, not printed)
builtwith.com
Credit packs and plans vs half a cent a site
BuiltWith charges $0.0495 a domain on its $99 pay-as-you-go pack, and 1Lookup reads what a website runs on for $0.005 a site that answers, 90% less.
Looking for a BuiltWith alternative? This page sets BuiltWith pricing beside 1Lookup, with every BuiltWith figure taken from its own published pages, checked October 2026.
- 7-day free trial on every plan
- No contract and no minimum volume
1
Credit per site that answers
about $0.005 on Starter
6,000+
Technologies recognised
open fingerprints, kept current
0
Credits when a site blocks the check
or does not exist
11
Groups in every answer
CMS to security
At a glance
Here is where 1Lookup wins against BuiltWith, and where BuiltWith still wins.
Both tell you what a website is built with over an API. BuiltWith is the technology database: one API credit returns a domain's technologies from its index, with history going back years, lead lists of the sites that use a tool and CRM integrations, sold as $99 credit packs or plans from $295 a month. 1Lookup is one live call: the site's CMS, shop platform, analytics, marketing tools, hosting and frameworks with versions, detected from its headers, HTML and DNS when you ask, plus the email provider from MX, at a flat credit price on a balance that also pays for phone, email and company lookups.
1lookupWhere 1Lookup wins- About $0.005 a site that answers on Starter, 90% below BuiltWith's $0.0495 pay-as-you-go price, and nothing for a blocked or missing site
- Read live when you ask, with versions where the site shows them, so the answer is today's stack and not last quarter's crawl
- The email provider from MX kept apart from the services DNS verification records name, so a signup never inflates the stack
- A CSV with a domain column checks a whole list, on the same balance that pays for phone, email and company lookups
What it costs
From $2.00
per 1,000 tech stack lookups; $4.95 on Starter
Where BuiltWith wins- History: its home page says it covers 127,970+ internet technologies and offers adoption data going back more than 20 years, so it can say what a site used before, not only today.
- Lead lists by technology: it sells lists of the websites that use a given tool, which a one-site lookup cannot build.
- Pay-as-you-go credits that do not expire, and a failed request uses no credits.
- Integrations into Salesforce, HubSpot, Pipedrive, Zendesk, Slack and Zapier, listed on its home page.
What it costs
$99 for 2,000 API credits, pay-as-you-go ($0.0495 a domain; arithmetic, not printed)
Short answer
BuiltWith sells API credits at one credit a domain: $99 for 2,000 on pay-as-you-go ($0.0495 each), or plans of $295 a month for 2,000, $495 for 20,000 and $995 for 100,000. 1Lookup's Tech Stack Lookup costs 1 credit per site that answers, about $0.005 on Starter or $4.95 per 1,000, and nothing when a site blocks the check. BuiltWith does what 1Lookup does not: technology history and lead lists of every site that uses a tool.
1lookupvsLook up a website's tech stack for $0.005, 90% below BuiltWith's $0.0495.
The same answer for each site: its CMS, shop platform, analytics, marketing tools, hosting and frameworks, with versions. A site that blocks the check, does not exist or does not answer costs nothing.
1Lookup
$0.005
a site
BuiltWith
$0.0495
a lookup
90%
less for every website you look up
20,000
1Lookup$99 a month
BuiltWith$495 a month
Wappalyzer$450 a month
At 20,000 websites a month, 1Lookup is $396 a month less than BuiltWith: 80% less.
Starter at $99 a month covers up to 20,000 tech stack lookups. A site that blocks the check costs nothing, and credits you do not spend here work on every other 1Lookup lookup.
Here is what 1,000 lookups cost at BuiltWith and at 1Lookup.
Published rates only, drawn on one shared scale that starts at $0.
- 1Lookup rate card
- BuiltWith published tiers
BuiltWith, per published tier
2,000 domains (pay-as-you-go credits)
$49.502,000 domains a month (Basic plan)
$147.5020,000 domains a month (Pro plan)
$24.75100,000 domains a month (Team plan)
$9.95
1Lookup, reference band (a range, not a bar from $0)
All 4 plans, 20,000 tech stack lookups/mo to 1,000,000 tech stack lookups/mo
Cost per 1,000
| Product | Volume tier | Price | Cost per 1,000 |
|---|---|---|---|
| BuiltWith | 2,000 domains (pay-as-you-go credits) | $99 ($0.0495 a domain) | $49.50 |
| BuiltWith | 2,000 domains a month (Basic plan) | $295 a month ($0.1475 a domain) | $147.50 |
| BuiltWith | 20,000 domains a month (Pro plan) | $495 a month ($0.0248 a domain) | $24.75 |
| BuiltWith | 100,000 domains a month (Team plan) | $995 a month ($0.00995 a domain) | $9.95 |
| 1Lookup | 20,000 tech stack lookups/mo | $99/mo (Starter) | $4.95 |
| 1Lookup | 85,000 tech stack lookups/mo | $299/mo (Growth) | $3.52 |
| 1Lookup | 250,000 tech stack lookups/mo | $799/mo (Professional) | $3.20 |
| 1Lookup | 1,000,000 tech stack lookups/mo | $1,999/mo (Enterprise) | $2.00 |
What replaces what
Here is which 1Lookup product matches each BuiltWith job.
BuiltWith counts one API credit for each domain. 1Lookup counts the same unit, one website and its technologies, billed in credits only when the site answered with its home page, and nothing for a site that blocks the check, a name that does not exist or a site that does not answer.
Side by side
Both products are measured on the same criteria, using BuiltWith's own published numbers.
| Criteria | 1lookup | |
|---|---|---|
| Pricing model | Monthly plans with universal credits; core phone, email and IP lookups cost 1 credit, enrichment and intelligence products cost more | API credits, one credit for one domain, sold two ways. Pay-as-you-go is $99 for 2,000 credits that do not expire, cheaper in larger amounts. Or a monthly plan with credits that accumulate: Basic $295 a month for 2,000, Pro $495 for 20,000 and Team $995 for 100,000 (yearly: $2,950, $4,950 and $9,950). The $144 Advanced plan has no API credits. A failed request uses no credits. |
| Starting price | $99/mo for 20,000 credits. At 1 credit each (Tech Stack Lookup API), that is $4.95 per 1,000 tech stack lookups on Starter, down to $2.00 on Enterprise. | $99 for 2,000 API credits, pay-as-you-go ($0.0495 a domain; arithmetic, not printed). |
| Free option | Free single lookups via the online tools at 1lookup.io/tools, no account required | None published |
| Free trial | 7-day free trial on every plan: $5 of credits on Starter, $20 on Growth, Professional, and Enterprise, with no payment today | None published |
| Do credits expire? | Unused monthly credits roll over for 3 months; separately purchased credits last 1 year | No for pay-as-you-go: the page says 'API credits do not expire'. Plan credits are 'accumulative'. |
At volume
This is what BuiltWith charges at each volume it publishes.
| Volume | Price | Per 1,000 |
|---|---|---|
| 1Lookup, every plan | $99 to $1,999 a month | $2.00 to $4.95 |
| 2,000 domains (pay-as-you-go credits) | $99 ($0.0495 a domain) | $49.50 |
| 2,000 domains a month (Basic plan) | $295 a month ($0.1475 a domain) | $147.50 |
| 20,000 domains a month (Pro plan) | $495 a month ($0.0248 a domain) | $24.75 |
| 100,000 domains a month (Team plan) | $995 a month ($0.00995 a domain) | $9.95 |
BuiltWith figures verified October 2026 against builtwith.com.
How you buy
This is how you buy from 1Lookup and from BuiltWith.
1lookupHow it is sold
Monthly plans with universal credits; core phone, email and IP lookups cost 1 credit, enrichment and intelligence products cost more
What it starts at
$99/mo for 20,000 credits
How you try it
7-day free trial on every plan: $5 of credits on Starter, $20 on Growth, Professional, and Enterprise, with no payment today
How it is sold
API credits, one credit for one domain, sold two ways
What it starts at
$99 for 2,000 API credits, pay-as-you-go ($0.0495 a domain; arithmetic, not printed)
How you try it
No trial published
A real result
This is what one 1Lookup result looks like.
Send a domain
POST a domain, a web address or an email address. It is cut down to the site's host name. An IP address or a private name is refused with a clear error and costs nothing.
We read the home page and DNS at once
1Lookup asks for the home page once and queries MX, TXT, NS and the www CNAME at the same time, with 10 seconds and 2 MB for the page. Internal addresses are refused, redirects included.
Get the stack, flat and grouped
Every technology arrives with its version, group and where it was seen, in one JSON payload. A site that answered bills 1 credit; a blocked or missing site bills nothing.
One call turns a domain into the stack its site runs on
- Website
- sample-shop.example.com
- CMS
- WordPress 7.2
- Shop and payments
- WooCommerce 11.4.0, Stripe
- Analytics
- Google Tag Manager, Google Analytics
- Marketing
- Klaviyo
- Chat
- Intercom
- Hosting
- Cloudflare, Nginx 1.25.3
- Frameworks
- PHP, MySQL, jQuery 3.7.1
- Email provider
- Google Workspace
200 OK, 1 creditShowHide
{
"classification": {
"found": true,
"query": "sample-shop.example.com",
"technology_count": 13,
"cms": "WordPress 7.2",
"ecommerce": "WooCommerce 11.4.0 | Stripe",
"hosting": "Cloudflare | Nginx 1.25.3",
"email_provider": "Google Workspace",
"checked_at": "2026-10-26"
},
"metadata": { "credits_used": 1 }
}Try the Free Tech Stack Checker, one of 1Lookup's free tools.
Run one lookup in your browser and see the result before you decide.
The evidence
Here is the evidence behind every number on this page.
Here are BuiltWith and 1Lookup side by side on the terms you check before you sign.
The terms that decide what a year actually costs, rather than what the first month does. “Not listed” means we could not verify it on either product’s published pages, not that the answer is nothing.
| Term | 1Lookup | BuiltWith |
|---|---|---|
| Minimum commitment | None. Monthly plans with no contract and no minimum volume; cancel any time | Plans are billed monthly or yearly. |
| API access | Included on every plan and during the free trial; there is no tier that unlocks it | API credits on pay-as-you-go and on Basic, Pro and Team; none on the Advanced plan. |
| Rate limit | 200 requests per 10 seconds for each API key on standard lookups and 1,000 requests a minute for each key on number type, HLR and MNP, and each account can make up to 1,000 requests a minute in total across all its keys; higher limits are available on request | Not listed |
| Support | Starter: Email Support; Growth: Priority Email & Chat Support; Professional: Chat + Live Meeting; Enterprise: Dedicated CSM | Not listed |
This is the BuiltWith fine print worth reading twice.
Published terms that change what BuiltWith costs or what you can do with it. Each one links to the BuiltWith page it was read on, because a claim about somebody else’s contract should be checkable in one click.
The $144 Advanced plan comes with 0 API credits, so API use starts at the $99 pay-as-you-go pack or the $295 Basic plan.
Read it on BuiltWith’s site
1Lookup
BuiltWith
BuiltWith pricing and product facts verified against builtwith.com as of October 2026. Prices change, so confirm on the vendor’s site. 1Lookup numbers come from the live rate card.
Who it is for
Pick 1Lookup or stay with BuiltWith depending on the job in front of you.
1lookupChoose 1Lookup if
you want what a site runs on today, read live, at about half a cent a site that answers, with blocked and missing sites free, the email provider from MX kept apart from the stack, and a CSV that runs a whole column of domains on a balance shared with your other lookups.
BuiltWithConsider BuiltWith instead if
you need what a site used in the past, lists of every website that uses a technology, or its integrations into your CRM, and you are happy to pay $99 for 2,000 credits that never expire or $295 to $995 a month for a plan.
Questions
People ask these questions before they switch from BuiltWith.
How does BuiltWith API pricing work?
One API credit returns one domain. Pay-as-you-go is $99 for 2,000 credits that do not expire, cheaper in larger amounts. Plans include credits that accumulate: Basic $295 a month for 2,000, Pro $495 for 20,000 and Team $995 for 100,000, or $2,950, $4,950 and $9,950 a year. The $144 Advanced plan has no API credits. A failed request uses none. Checked October 2026.
How much does 1Lookup charge for the same lookup?
1 credit per site that answers, free when the site blocks the check, does not exist or does not answer. On the Starter plan ($99 a month for 20,000 credits) a site is about $0.005, which covers 20,000 lookups a month and is $4.95 per 1,000. At the Enterprise end of the rate card it is about $0.002.
Is 1Lookup cheaper than BuiltWith?
Yes at every printed volume. BuiltWith's entry price is $0.0495 a domain on pay-as-you-go and $0.1475 on the Basic plan; 1Lookup's is about $0.005, 90% below the pay-as-you-go price. At 20,000 lookups a month BuiltWith's cheapest printed option is the $495 Pro plan, and 1Lookup's Starter plan at $99 covers the same 20,000.
Where does the answer come from on each?
BuiltWith answers from its own index of the web, built over years, which is why it can show what a site used in the past. 1Lookup reads the site when you ask: one request for the home page and a DNS query at the same time, matched against open fingerprints for more than 6,000 technologies, so the answer is what the site shows today.
Where does BuiltWith beat 1Lookup?
On history and lists. BuiltWith says it covers more than 127,000 internet technologies with adoption data going back more than 20 years, sells lists of every website that uses a tool, and connects to Salesforce, HubSpot, Pipedrive and Zapier. 1Lookup reads one site at a time, today, and does not sell lists or history.
When is a 1Lookup tech stack lookup free?
When the site blocks the check (a 401, 403 or 429 answer, or a bot challenge page), when the name does not exist, when the site has no home page, and when it does not answer in time, which returns a 503 with a Retry-After header. Each of those costs 0 credits. Only a site that answered with its home page is billed.
Does each one return versions and the email provider?
1Lookup returns a version wherever the site gives one away, in a meta tag, a script address or a header, and the email provider read from the domain's MX records, kept apart from the services its DNS verification records name. BuiltWith's lookup returns the technologies in its index for the domain.
What is the best BuiltWith alternative?
If you need technology history, lead lists or CRM integrations, BuiltWith is the fuller tool. If you want what a list of sites runs on today, read live, with versions and the email provider, at about $0.005 a site and nothing for a blocked site, 1Lookup's Tech Stack Lookup is the cheaper API.
Is BuiltWith worth it in 2026?
Yes if you use its history and lists: nothing on this page matches them. If you mostly call the API for one domain at a time, compare the price per lookup: $0.0495 on its pay-as-you-go pack against about half a cent on 1Lookup.
1lookupLook up a website and see what it runs on
Try 1Lookup free for 7 days and compare it with BuiltWith on your own work.
1 credit a site that answers, about $0.005 on Starter, free when a site blocks the check, on the same balance as phone, email and company lookups. Start with the 7-day free trial.
Keep going
Keep researching BuiltWith with the matching 1Lookup pages.
Use 1Lookup
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