Tenable WAS vs KeyDrift
VM-giant bringing WAS into unified Tenable.io views.
Was integrated into the Nessus-era giant’s platform.
This page compares the two honestly: strengths credited specifically, differences traced to structure rather than quality, and a decision rule at the end. Verified August 2026.
What Tenable Web App Scanning does well
Unified risk views with VM.,Enterprise plugin ecosystem.,Assessment scheduling maturity.
- Web apps within Tenable estates.
- WAS engines.
- Scheduled assessments.
The gap KeyDrift fills: the deployed bundle
Nothing above describes a defect — it describes a boundary. Tenable Web App Scanning answers questions about source and infrastructure with real competence. The question KeyDrift answers is different and narrower: what credentials can a stranger retrieve from this deployment right now? Because bundlers substitute literals and agents write client-side calls after review, that question sometimes has an answer the repository never saw.
- Fetched-and-diffed scanning of live URLs, including chunks reachable only through route manifests.
- Streamed server data (
self.__next_f.push,window.__NUXT__) read as carefully as chunk files. - Calibrated dispositions: Supabase anon keys, publishable keys and Firebase web keys recognised as public-by-design instead of reported as leaks.
- Drift transitions — created, regressed, resolved — so a reintroduced key alerts as a regression, not as news.
Feature-by-feature
- Surfaces scanned. Tenable subscription. versus KeyDrift: deployed web artifacts fetched live, or pasted bundle source for anything behind a login.
- Detection approach. tenable-standardized vulnerability programs. versus KeyDrift: 21 secret detectors across 13 providers with placeholder rejection, alphabet-normalised entropy, payload decoding and a confidence floor below which matches are dropped rather than caveated.
- Change over time. Unified views help governance; unique lenses still need adding — served-credential state is one such lens. versus KeyDrift: scheduled scans diffed into created/regressed/resolved with alert routing to email, Slack, Discord and webhooks.
- Getting started. undefined versus KeyDrift: paste a URL at /scan — free, no account — or paste source for private surfaces.
Side-by-side
Every cell below states a specific capability. Where Tenable Web App Scanning documents more detail than fits here, follow their docs; where KeyDrift claims something, it is verifiable in a two-minute free scan.
| Capability | Tenable Web App Scanning | KeyDrift |
| --- | --- | --- |
| Primary surfaces | Tenable subscription. | Deployed web artifacts fetched live: HTML, all chunks (incl. route-manifest-only), streamed payloads |
| Build-time substitution (NEXT_PUBLIC_/VITE_) | Not a documented capability | Detected in served output — exactly where it lands |
| Hydration payloads (self.__next_f.push, window.__NUXT__) | Vulnerability-focused tooling; credential payload reading not documented | Read as carefully as chunk files |
| Public-vs-secret calibration | Not applicable to scope | Dispositions built-in: anon/publishable/Firebase-web reported informational, sample keys rejected by name |
| Change over time | Unified views help governance; unique lenses still need adding — served-credential state is one such lens. | Scheduled scans diffed into created/regressed/resolved; regression alerts name comebacks |
| Alert routing | Unified views help governance; unique lenses still need adding — served-credential state is one such lens. | Email · Slack · Discord · raw webhooks with per-destination severity thresholds |
| Getting started | undefined | Paste any URL at keydrift.dev/scan — free, no account; paste-source mode for behind-login surfaces |
| Privacy of findings | Varies by vendor | Masks + salted fingerprints only; no column anywhere can hold a live secret |_Cells describing Tenable Web App Scanning summarize their public documentation as of the verified date above._
Where each one wins
- Tenable Web App Scanning wins when undefined
- KeyDrift wins when the question is “what credentials can strangers retrieve from this deployment right now?” — live fetching, calibrated dispositions, and regression alerting without agents installed.
Switching from Tenable Web App Scanning
Teams arriving from Tenable Web App Scanning usually keep their existing setup and add one job: point KeyDrift at production, staging, and preview URLs. First week looks like this — day one, run the free scan on every deployment and triage findings by severity; day two, fix or schedule fixes using the linked guides; day three onward, monitoring watches for regressions while Tenable Web App Scanning continues doing what it does best.
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Decision rule
- Keeping Tenable Web App Scanning for its documented strengths makes sense — it earns them.
- Add KeyDrift when deployment truth matters: post-build artifacts, preview URLs, and reintroduction watch on a schedule.
_Compared against Tenable Web App Scanning documentation and pricing as verified August 2026. Capabilities change; check their site._ Tenable, Inc. and associated marks are trademarks of Tenable, Inc., referenced for identification and descriptive comparison.
Bottom line: the tools are complements wearing rivals' clothes. Tenable Web App Scanning watches inputs; KeyDrift watches outputs. Teams that verify both stop being surprised by either.
How teams actually run Tenable Web App Scanning and KeyDrift together
In practice the pairing is boring in the best way: Tenable Web App Scanning stays authoritative for whatever it was built to do, KeyDrift runs on a schedule against every public deployment, and alerts route into the same channels your team already reads. Nothing is migrated; nothing is turned off. The only new habit is reading one more alert type — and that one arrives masked, classified, and linked to a fix guide.
What to verify on their site before deciding
- Their current scanned-surface list (Tenable subscription.) — confirm against your stack.
- Whether drift/change-detection over time is part of their product or a roadmap item.
- Free-tier shape: what you can prove about YOUR deployment before any purchase conversation.
Common questions
Is Tenable Web App Scanning bad at security?
No — the page credits specific strengths above. The difference is which artifact gets inspected, not effort or care.
Pricing comparison?
Their list pricing lives on their site and changes; ours sits on the plans page with findings visible free at every tier. Numbers go stale; philosophy does not.
Run a free scan at keydrift.dev/scan — paste a URL or the bundle source itself, no account. Findings arrive masked, with the exact chunk they live in.