Why this page exists
PolyTechniques runs entirely in your browser: the calculators, the structure editor, and the search all execute as JavaScript on your own machine, with no login and no server-side computation. On a locked-down network (many government, military, and corporate builds fall in this bucket), the browser or a security proxy can silently block pieces of that, which makes the site look like it will only display pages, not respond to input. This page measures exactly what is and isn't allowed here, so the cause is a specific finding rather than a guess. Nothing here is sent anywhere; every result is computed and shown locally.
Tools not responding? Try this first
If the pages load but the calculators won't let you select or enter anything, the most common cause is a stuck or corrupted offline cache from an earlier visit. This button clears the site's saved cache and background worker and reloads with a completely fresh copy from the server. It's safe: it only affects this site's cached files on this computer.
Results
| Capability | Result | What it powers here |
|---|
Ad serving
Ads are only ever shown on this site as a single unit below the content, and the page removes that unit unless Google reports it filled — so “no ads anywhere” looks identical whether the cause is a site still getting ready, a network blocking the ad script, or nothing on offer to fill it. This asks Google for one real ad and reports exactly which of those it is.
It places a genuine ad below. Do not click it — clicking your own ads breaks the AdSense terms. Nothing is requested until you press the button.
What the findings mean
- JavaScript, Canvas, and same-origin data all pass: the core tools should work. The calculators (ATRP/RAFT/NMP, dispersity, Tg, GPC, copolymer composition) and drawing/searching a structure need nothing beyond this.
- Same-origin data passes but the outside services fail: the calculators and structure drawing work, but the features that reach the public internet do not, because this network blocks them. That covers the live publications search (Crossref), naming an unknown drawn structure (PubChem), reading text off a photo (a public code CDN), and AI photo-to-structure (the site's API). These degrade on their own and should not stop the rest of the page.
- Even same-origin data or Canvas fails: the browser here is very heavily restricted; the tools can't run until that is relaxed.
- WebAssembly fails: only the structure similarity ranking uses it. Drawing a repeat unit, exact-match search, and name/browse search all still work without it.
If the core rows fail on your network but the site works for you elsewhere (home, phone), the fix is on the network side: ask your IT service desk or Cybersecurity Service Provider to allow getpolytechniques.com (it is a static, read-only reference site with no user accounts and no data collection). The report button above copies these results so you can attach them to that request.