PublicWWW alternative

PublicWWW finds every site using a snippet. TechSpy reads what one site is actually running.

PublicWWW is a source-code search engine built for footprinting the whole web by signature. TechSpy points at a single domain and returns an opinionated tech and infrastructure read — not a list of matches.

  • Enter a domain, get a Verdict, Evidence, and Implications — not raw HTML matches
  • Sees through React and Next.js SPAs that leave source-code scrapers near-empty
  • Adds DNS, DMARC, SPF, DKIM, subdomains, and hidden-API Deep Scan

Free — no card, 30 scans/day.

TechSpy — the read

High

Verdict

Stripe checkout, Segment, and Datadog point to a well-instrumented commerce stack with mature observability — but a missing DMARC enforcement policy is a real gap for an ecommerce brand.

Evidence: Stripe.js + Checkout detected via JS-runtime fingerprint (High confidence); Segment and Datadog RUM found in headless HAR capture; DNS audit: SPF present, DMARC policy set to p=none.

Implications: Payments and monitoring are dialed in; email deliverability and spoofing protection are the weak link a competitor could exploit.

Head to head

We're not pretending it's all checkmarks on our side — where PublicWWWgenuinely wins, it's bolded.

FeatureTechSpyPublicWWW
Core jobPer-domain tech + infra readWeb-wide source code search
Search all sites by a code snippet or ID
Footprint sites sharing one signature at scale
Opinionated read (Verdict + Evidence + Implications)
Sees through React/Next.js SPAsJS-runtime + headersRaw source only
DNS / DMARC / SPF / DKIM audit
Subdomain discovery + sitemap
Deep Scan: hidden APIs / SDKs (headless + HAR)
Confidence markers + says when blockedHigh/Med/Low
Free tier$0, 30 scans/dayFree web search

What only TechSpy does

The depth PublicWWWdoesn't reach — turned into an action, not a data dump.

🧭

A read, not a match list

PublicWWW returns URLs that contain your query. TechSpy groups a domain's tools by what they mean and writes a Verdict, the Evidence behind it, and the business Implications.

👁️

Sees through modern SPAs

Source-code search reads the HTML that ships. TechSpy adds JS-runtime fingerprints and HTTP headers, so React and Next.js apps that leave scrapers near-empty still resolve to a real stack.

🔐

Infrastructure, not just embeds

DNS, DMARC, SPF, DKIM, subdomains, sitemap, and a headless Deep Scan that surfaces hidden APIs and SDKs — signals a code-signature search was never built to return.

Pick PublicWWW instead if…

Straight up — different jobs. Pick the one that matches yours.

Choose PublicWWW if you need to

  • You need to find every site on the web running a specific snippet, tracking ID, or code signature
  • Your job is OSINT footprinting or building lists of sites at internet scale
  • You want to reverse-search source code rather than analyze one company in depth

Choose TechSpy if you need to

  • You want an opinionated read on one company's tech stack and infrastructure, not a list of matches
  • The target is a React/Next.js SPA that leaves source-code scrapers near-empty
  • You need DNS, DMARC, subdomains, and hidden-API Deep Scan alongside tech detection
  • You want confidence markers, honest 'blocked by Cloudflare' notes, and exportable reports (PDF / Zapier / API)

Start free — pay when it becomes a habit

Free

$0

  • Scans: 30/day
  • Deep Scan: —
  • Interact: —
  • Export · Zapier · API: —

Plus

$19/mo

  • Scans: 30/day
  • Deep Scan: 10
  • Interact: 5
  • Export · Zapier · API: —
Recommended

Max

$49/mo

  • Scans: Unlimited
  • Deep Scan: 50
  • Interact: 25
  • Export · Zapier · API: ✓

Enterprise $199/mo. Static scan runs in seconds; Deep Scan & Interact take minutes.

More comparisons

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Stop reading — scan one of your real targets

See the opinionated read for yourself. Free, no login, 30 scans a day.

View pricingAPI & Zapier