UltraWebScrapingAPI vs ZenRows
ZenRows handles basic Cloudflare. On Akamai, DataDome, and Kasada,
it's a different story.
The Short Version
ZenRows is a good mid-tier scraping API that handles basic anti-bot challenges. Their "AI anti-bot" feature works on standard Cloudflare pages. But on enterprise-grade protection — Akamai Bot Manager, DataDome, Kasada, PerimeterX — they fail like everyone else. That's where UltraWebScrapingAPI picks up.
Anti-Bot Success Rate Comparison
| Anti-Bot System | UltraWebScrapingAPI | ZenRows |
|---|---|---|
| Basic Cloudflare | 99%+ | 90%+ |
| Cloudflare Turnstile | 99%+ | ~55% |
| Akamai Bot Manager | 99%+ | Fails |
| DataDome | 99%+ | ~40% |
| PerimeterX (HUMAN) | 99%+ | Fails |
| Kasada | 99%+ | Fails |
| Imperva / Shape | 99%+ | Fails |
Pricing Comparison
ZenRows looks cheap at $0.007/request. But that price is for basic pages. Their "premium" anti-bot credits cost 5-25x more — and still fail on the hardest sites.
| Metric | UltraWebScrapingAPI | ZenRows |
|---|---|---|
| Price per request | $0.05 | $0.007 (basic) / $0.035-$0.175 (premium) |
| Anti-bot success (Akamai) | 99.9% | 0% |
| Anti-bot success (Cloudflare) | 99.9% | ~55% (Turnstile) |
| Pricing model | Pay-as-you-go, $20 min | Monthly subscription ($69/mo+) |
| Credits expire? | Never | Monthly reset |
| Per-site analysis | Free, included | Not available |
ZenRows' "AI Anti-Bot" — What It Actually Does
ZenRows markets their "AI anti-bot" feature as a breakthrough. In reality, it's headless Chrome with proxy rotation — the same approach as every other scraping service. The "AI" is pattern matching on known challenge pages.
This works on basic Cloudflare. It does not work on Akamai Bot Manager, which fingerprints the browser engine, analyzes canvas rendering, and tracks behavioral patterns across the entire session.
There's no amount of proxy rotation or headless Chrome configuration that defeats per-site, custom-configured enterprise anti-bot. You need per-site reverse engineering — which is what we do.
Where ZenRows Wins
- Budget-friendly for basic sites — $69/mo for 250K requests is solid value
- Basic Cloudflare bypass — Standard Cloudflare challenge pages handled well
- Simple API — Clean REST API, easy to integrate
- Auto-parsing — Built-in CSS selector extraction
Where UltraWebScrapingAPI Wins
- Enterprise anti-bot bypass — Akamai, DataDome, Kasada, PerimeterX, Imperva at 99%+
- Per-site reverse engineering — Custom bypass strategy for each target site
- Real browser sessions — Authentic fingerprints, not headless automation
- No subscription lock-in — Pay $20 for 400 requests. Use them whenever. Credits never expire.
- Free playground — Test any URL instantly, no account needed
Related Resources
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