The BuiltWith Alternative Built for Developers
Full API access from $9/month. BuiltWith charges $995/month. Same tech detection, plus DNS and TLS layers they don't have.
Pricing Comparison
BuiltWith
DetectZeStack
Wappalyzer
Feature Comparison
| Feature | BuiltWith | DetectZeStack |
|---|---|---|
| API access price | $995/mo | Free (100 req/mo), $9/mo (1K req) |
| Real-time analysis | No (periodic crawls) | Yes (live fetch per request) |
| Technology signatures | ~111,000 | 7,200+ (covers all major tech) |
| DNS infrastructure detection | No | Yes (111 CDN/hosting signatures) |
| TLS certificate analysis | No | Yes (8 issuer patterns) |
| CPE identifiers | No | Yes (when available) |
| Stack comparison endpoint | No | Yes (shared/unique tech across sites) |
| Webhook alerts | No | Yes (analysis notifications) |
| Batch analysis | Yes | Yes (up to 10 URLs) |
| Historical data | Yes (years of history) | Yes (tracks changes going forward) |
| Lead list generation | Yes | No (API-only, build your own) |
What DetectZeStack Does That BuiltWith Doesn't
DNS + TLS Detection
BuiltWith only analyzes HTML and HTTP headers. DetectZeStack also inspects DNS CNAME records and TLS certificates to identify CDNs, hosting providers, and security infrastructure that are invisible to HTML analysis.
CPE Identifiers
Detected technologies include CPE identifiers (when available) so you can look up known vulnerabilities in the NVD. BuiltWith has no security vulnerability data. Read about CPE vulnerability detection.
Stack Comparison
The /compare endpoint shows shared and unique technologies across multiple sites in a single request. BuiltWith has no equivalent API endpoint.
Real-Time Analysis
BuiltWith serves stale crawl data. DetectZeStack fetches and analyzes every URL live, with results cached for 24 hours. X-Cache headers indicate fresh vs cached data.
Webhook Monitoring
Get notified each time a domain is analyzed. HMAC-signed payloads, automatic retries, HTTPS only.
110x Cheaper
$0.009 per request vs BuiltWith's $0.199. At 1,000 requests/month, you pay $9 instead of $995. That's $11,832/year in savings.
BuiltWith API Pricing Breakdown
BuiltWith gates API access behind their most expensive plans. Here's the full breakdown:
| BuiltWith Plan | Price | API Access? |
|---|---|---|
| Basic | $295/mo | No |
| Pro | $995/mo | Yes |
| Enterprise | Custom (often $4,000+/mo) | Yes |
With DetectZeStack, API access is included on every tier—including the free plan. The Pro plan at $9/month gives you 1,000 requests, making it 110x cheaper than BuiltWith's API-enabled plan ($9 vs $995).
curl "https://detectzestack.p.rapidapi.com/analyze?url=example.com" \
-H "X-RapidAPI-Key: YOUR_API_KEY" \
-H "X-RapidAPI-Host: detectzestack.p.rapidapi.com"For the full tutorial with Python and JavaScript examples, read Website Technology Checker API: The Complete Guide.
Frequently Asked Questions
Is there a free BuiltWith API alternative?
Yes. DetectZeStack offers 100 free API requests per month with no credit card required. BuiltWith doesn't have a free tier at all—their cheapest plan is $295/month and doesn't even include API access. DetectZeStack gives you full REST API access on every tier, including the free plan.
How much does BuiltWith API cost?
BuiltWith API access requires the Pro plan at $995/month. The Basic plan ($295/month) does not include API access. DetectZeStack offers full API access on every tier, starting with a free plan (100 requests/month) and paid plans from $9/month.
What is the best free alternative to BuiltWith?
DetectZeStack offers 100 free API requests per month with no credit card required. It detects 7,200+ technologies using four detection layers, and includes features BuiltWith lacks: DNS/TLS detection, CPE identifiers (when available), and stack comparison.
Does DetectZeStack detect the same technologies as BuiltWith?
DetectZeStack covers all major technologies: CMS platforms, JavaScript frameworks, analytics tools, CDNs, web servers, and more. BuiltWith has a larger database (~111K vs 7,200+) that includes niche plugins and widgets. For most use cases, DetectZeStack detects everything you need, plus infrastructure that BuiltWith misses entirely.
Can I migrate from BuiltWith to DetectZeStack?
Yes. DetectZeStack uses a standard REST API with JSON responses. Replace your BuiltWith API calls with DetectZeStack endpoints. The response format is clean and well-documented in our OpenAPI spec.
Switch from BuiltWith Today
100 requests/month free. No credit card required. Full API access on every tier.
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