Website Technology Stack Dataset (495K Domains)

What you get

• 495,363 domains with detected technology stacks (2026-08-01 snapshot)
• 30,000-domain comparison snapshot (2026-08-02) with 1,476 detected tech changes
• Pre-built slices by technology (40), country (30) and traffic tier (3)
• Quality report and MANIFEST included

Full package inventory

Every package registered in the delivery catalog for this dataset — 1 packages, 638.0 MB total. Sizes, row counts and SHA-256 checksums come straight from the packaging pipeline.

How to get this data

# Machine-readable package index (size / sha256 / rows / channels)
curl -s https://data.zalize.com/datasets/website-technology-stack-dataset/packages.json | jq '.packages[0]'

# Request a free sample (signed link sent to your email)
curl -X POST https://dl.zalize.com/api/sample \
  -H 'Content-Type: application/json' \
  -d '{"dataset":"website-technology-stack-dataset","email":"you@company.com"}'

Pricing

Packages for this dataset are being prepared. Grab the free sample below and contact us for current pricing and delivery.

AI-training use requires the AI-Training tier (1.5× base); redistribution licensing is quoted individually. Annual subscriptions get 2 months free. License details →

Update frequency & delivery

• Collected by direct crawling of publicly accessible pages with an identified User-Agent.
• Delivered as a B2B archive after a short approval step — request access.

Compliance & provenance

Collected only from publicly accessible pages and endpoints — no login-required data, no CAPTCHA solving, no forged authentication. Collection is rate-limited with an identified User-Agent, and collection logs are retained. PII is removed or pseudonymized. Every record carries its source URL and collection timestamp. Sold under a tiered commercial license.

FAQ