The grep for the entire web
Search the source code
of every website.
Find every site running a snippet, script, tracking ID, or framework, by exact string or full regex. Verified against the raw HTML, ranked by popularity, with the full source of every match.
Signature library
Detect any tech by its fingerprint.
Every tool leaves a signature in a page's source. Click one to open its page, the sites running it, with the full matched source. Counts are from the current index and climb as we scale toward the whole web.
What you can find
One query. Every site that matches.
If it's in the HTML, JS, or CSS a site ships, it's searchable, lead lists, competitive intel, tech-stack mapping, security signatures, all from one string.
Map a tech stack
Every site running a specific theme, plugin, framework, or CMS.
Track an analytics ID
Find sites sharing a Google Analytics or ad-network account, with regex.
Find integrations
Who's using Stripe, Intercom, Segment, a specific SDK or pixel.
Hunt exposure
Every site loading a known-bad script or an outdated library version.
Why it's different
See the full source, not just a snippet.
| SearchWebCode | PublicWWW | NerdyData | BuiltWith | |
|---|---|---|---|---|
| What it does | regex-search real page source | search site homepages | search page source | detect a site's tech |
| Unique domains | 129M+ | not disclosed | not disclosed | - |
| Pages / profiles | 1 per domain (homepage) | ~517M pages | tens of millions of pages | tech profiles, not source |
| Regex search | ✓ full regex | ✓ full regex | partial | ✗ |
| Full page source per match | ✓ whole source | ✗ snippet | ✗ snippet | ✗ |
| Last updated | monthly · August 2026 | infrequent | varies | varies |
| Pricing | $0.05 / search | up to $499 / mo | up to $3,000 / mo | up to $995 / mo |
SearchWebCode indexes ~129M unique domains (one homepage each), refreshed monthly, last built August 2026. Competitor coverage and pricing are approximate, from public information.
Deep-dive comparisons: vs PublicWWW · vs NerdyData · vs BuiltWith · vs Wappalyzer
Pay only when you run a search. No seat, no monthly minimum.
- 0 results = $0.00 — provably-empty searches are free
- Every match, in full page source, not a snippet
- Copy domains or export results as CSV
- Regex & TLD filters included
- Search from your own code with the developer API
Full-depth crawl of every page on a site, not just homepages, with dedicated capacity and bulk access, built for teams running this at scale.
- Deep index of every page, refreshed on your schedule
- Volume pricing & higher rate limits
Live now
Start searching the web's source.
Search a growing index of website source code, exact-string or full regex, full matched source, and pay only for the searches you run.