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Every site loading a known-bad script or an outdated library version.
From the index
Data reports and worked examples.
Counts across the whole index, published as citable reports, and step-by-step lookups you can run yourself.
Web technology adoption
Which CMS, frameworks, analytics and payment stacks 131M domains actually ship.
reportAnalytics census
GA4, Tag Manager, Universal Analytics, Matomo and Plausible, counted on the live web.
reportThe jQuery immortality report
31.5M sites still load it, and most of those installs are end-of-life versions.
use caseReverse AdSense lookup
Find every site sharing one ca-pub publisher ID.
use caseWordPress theme lookup
Every site on a given theme, from the theme folder in page source.
use caseJavaScript library lookup
Sites shipping a specific library or version, by filename or CDN path.
More: all guides · the technology directory · API docs · pricing
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 | 131M+ | 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 | $10 / mo unlimited or $0.05 / search | from $49 / mo, up to $499 | up to $3,000 / mo | up to $995 / mo |
SearchWebCode indexes ~131M unique domains (one homepage each), refreshed quarterly, last built September 2026. Competitor coverage and pricing are approximate, from public information.
Deep-dive comparisons: vs PublicWWW · vs NerdyData · vs BuiltWith · vs Wappalyzer
Pay only for the searches you run.
- Full page source for every match
- Regex & TLD filters
- CSV export & API access
- Empty results are free
No meter. Search all you want.
- Everything in pay-as-you-go
- API & watched searches included
- Fair use: 500 requests a day
- Cancel any time
For teams that need more.
- Every page, not just homepages
- Dedicated capacity & higher limits
- Bulk export
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.