Builtwith vs SpyFu: Which is Better in 2026?
Choosing between Builtwith and SpyFu comes down to understanding what each tool does best. This comparison breaks down the key differences so you can make an informed decision based on your specific needs, not marketing claims.
Short on time? Here's the quick answer
We've tested both tools. Here's who should pick what:
Builtwith
See the tech stack behind any website
Best for you if:
- • You want to try before committing
- • You need web analytics features specifically
- • BuiltWith is a website profiling tool that reveals technology stacks behind any site
- • It identifies CMSs, analytics, e-commerce platforms, and marketing tools
SpyFu
Competitor SEO and PPC research
Best for you if:
- • You need SEO tools features specifically
- • SpyFu is an SEO and PPC research tool for competitive analysis
- • It reveals competitor keywords, ads, and rankings history
| At a Glance |  Builtwith |  SpyFu |
|---|---|---|
Starts at | $295/monthBasic | $29/monthBasic |
Best For | Web Analytics | SEO Tools |
Rating | - | - |
Choose Builtwith or SpyFu?
Choose Builtwith if
See the tech stack behind any website
- Technology lookup
- Good for sales
- Browser extension
- Your work is web analytics-shaped, not SEO tools-shaped
Choose SpyFu if
Competitor SEO and PPC research
- Competitor SEO analysis
- Good keyword research
- Fair pricing
- Budget matters ($29/month vs $295/month)
- Your work is SEO tools-shaped, not web analytics-shaped
| Feature | Builtwith | SpyFu |
|---|---|---|
| Pricing Model | Freemium | Paid |
| User Rating | ★4.3/5 61 reviews | ★4.6/5 663 reviews |
| Categories | Web AnalyticsCompetitive Intelligence | SEO ToolsMarketing |
In-Depth Analysis
Builtwith
See the tech stack behind any website
Strengths
- +Technology lookup
- +Good for sales
- +Browser extension
- +Active development
- +Good data
Weaknesses
- -Expensive
- -Credit-based
- -Limited free tier
- -Better alternatives exist
- -Privacy concerns
Key features
SpyFu
Competitor SEO and PPC research
Strengths
- +Competitor SEO analysis
- +Good keyword research
- +Fair pricing
- +Active development
- +Historical data
Weaknesses
- -Less data than Ahrefs
- -UI dated
- -Learning curve
- -Data accuracy varies
- -Better alternatives exist
Key features
Pricing: Builtwith vs SpyFu
| Plan | Builtwith | SpyFu |
|---|---|---|
| Tier 1 | Free Free | $29 month Basic |
| Tier 2 | $295 month Basic | $89 month Pro + AI |
| Tier 3 | N/A | $187 month Team/Agency |
Pricing verified from each vendor's public pricing page. Compare in detail on Builtwith pricing and SpyFu pricing.
Who Should Use What?
On a budget?
Builtwith has a free tier. SpyFu is paid only.
Go with: Builtwith
Want the highest-rated option?
Neither has user reviews yet.
Go with: Builtwith
Value user reviews?
Neither has user reviews yet.
Go with: SpyFu
3 Questions to Help You Decide
What's your budget?
Builtwith is freemium. SpyFu is paid. Builtwith lets you start free.
What's your use case?
Builtwith is a web analytics tool. SpyFu is in SEO tools. Pick the category that matches your needs.
How important are ratings?
Neither has user reviews yet.
Key Takeaways
SpyFu
- Higher user rating: 4.6/5 vs 4.3/5
- Larger review base (663 reviews)
- Our pick for this comparison
Builtwith
- Has a free tier
- Better fit for web analytics
The Bottom Line
SpyFu is our pick. Builtwith has a free tier if you want to test without paying.
Frequently Asked Questions
Is Builtwith or SpyFu better?
SpyFu is rated in our evaluation. Builtwith is freemium and SpyFu is paid.
What are Builtwith and SpyFu used for?
Builtwith: See the tech stack behind any website. SpyFu: Competitor SEO and PPC research.
What does Builtwith cost vs SpyFu?
Builtwith is freemium (free tier + paid plans). SpyFu is a paid tool. Visit their websites for detailed pricing.