Tech Stack Change Monitor — CMS, CDN & Analytics Delta Feed
Pricing
from $10.00 / 1,000 results
Tech Stack Change Monitor — CMS, CDN & Analytics Delta Feed
Detects the CMS, ecommerce platform, JS framework, CDN, analytics and marketing tags a website runs, and remembers the last result per domain so a scheduled run only returns and charges for domains whose tech stack actually changed since the last check.
Pricing
from $10.00 / 1,000 results
Rating
0.0
(0)
Developer
Marco Jakobsen
Maintained by CommunityActor stats
0
Bookmarked
2
Total users
1
Monthly active users
11 days ago
Last modified
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Website Tech Stack Change Monitor
What it does
Point this Actor at a list of websites and it fingerprints each one — CMS, ecommerce platform, JS framework, CDN/hosting, analytics tags, marketing/chat widgets, payment scripts, consent banners and backend server — from the page's HTML and response headers. No headless browser, no login, just one fast HTTP request per domain.
The part that matters for scheduling: this Actor remembers what it found last time. Run it daily or hourly on the same watch-list and by default it only returns (and only charges you for) a domain when its tech stack actually changed since the last check — a competitor switching from WooCommerce to Shopify, dropping Google Analytics for a self-hosted tool, moving behind Cloudflare, adding a new chat widget. A quiet day costs nothing. That is the point: build a feed you can leave running, not a one-off report you have to remember to re-run. Typical uses: sales and SEO teams tracking a prospect or competitor list, agencies auditing client sites for platform migrations, investors watching a portfolio company's stack for signs of a rebuild.
Input
| Field | Type | Default | Notes |
|---|---|---|---|
domains | array of strings | — (required) | Plain domains (example.com) or full URLs, one per item. |
onlyChanges | boolean | true | When true, a domain identical to its last check is skipped — no row, no charge. The very first check of any domain always returns a baseline row. Set to false to always get a full row for every domain on every run. |
stateStoreName | string | TECH-STACK-MONITOR-STATE | Name of the memory that stores each domain's last-seen stack. Use a different name per independent watch-list if you run more than one. |
requestTimeoutSecs | integer | 20 | Per-site fetch timeout, 5–60 seconds. |
See test-input.json in this Actor for a working example.
Output
One dataset row per domain that is returned (see onlyChanges above). Example row:
A row where a fetch failed instead carries an error field and the last known
technologies list, so a failing site does not silently vanish from your feed.
Pricing
Pay-per-event. You are charged $0.03 per result row returned (roughly $30 per 1,000 rows) — not per domain checked. A run over 50 domains where nothing changed on any of them produces zero rows and costs you nothing beyond the Actor start event. Scheduling this hourly on a watch-list you care about is the intended way to use it; unlike a flat per-run price, your bill tracks how much actually changed, not how often you looked.
