TesterAgent

How we test, and what we don’t do

TesterAgent opens your pages in a real browser (Chromium) on desktop and a throttled slow-4G phone profile and runs rule-based checks: crawl, tech stack and hosting, speed, UX/UI and accessibility, translation, functions, passive security and generated test cases. APKs are analysed as files without installing them. Nothing is submitted or changed on production sites.

The checks

Check
CheckWhat it measuresFree check (no account)FreeProBusiness
Crawl pages & linksFinds your pages and links in a real browser; broken links, status errors, console errors.YesYesYesYes
Scale & tech stackHosting, CDN, caching, compression and HTTP/2-3: can the site take more visitors?YesYesYesYes
Security (passive)Passive: security headers, HTTPS redirect, cookie flags, exposed files, mixed content, SRI, secrets in HTML.——YesYes
PerformanceLCP, FCP, TBT, CLS, TTFB and page weight on desktop and a throttled slow-4G phone.Yes—YesYes
UX/UI & accessibilityaxe accessibility rules, horizontal overflow, tap targets, tiny text, alt text, contrast, screenshots.YesYesYesYes
Translation / localeslang/dir, untranslated text and raw keys, cut-off text, hreflang, suspected wrong words, Thai letters in Lao.Yes—YesYes
Functions (search, forms, buttons)404 page, form labels and validation (never submits), search, dead links, buttons that throw JS errors.YesYesYesYes
Test cases (generate & run)Lists every function and generates rule-based test cases (not AI), runs them in safe mode, CSV export.——YesYes
APKTarget API, 16 KB alignment, permissions, signing, leaked keys, size, translations (static; file deleted after).150 MB150 MB500 MB1 GB

Safety rules

  • Only sites and apps you own or are authorised to test; private networks are blocked.
  • Production safe mode: forms are never submitted, and every non-GET request our clicks cause is blocked.
  • We never click pay, delete, transfer or log out.
  • Logged-in testing: you log in yourself in a live view; we never see or store your password, and the session is deleted when the audit ends.
  • Uploaded APKs are deleted right after the check.
  • For the free check we store only a one-way hash of your IP address.

Limits

  • Lao and Thai words are checked against wordlists, so names and loanwords can be flagged as “suspected”.
  • Speed numbers are lab measurements, not real-user data.
  • Security checks are passive; this is not a penetration test.
  • APK checks don’t accept .aab bundles or split APKs; the free check doesn’t run the app.