A passing glance at a disguised tab reads as an ordinary document rather than a chatbot window. Docognito is built for exactly that glance, redrawing the page, the tab title and the icon at once. A longer, deliberate look at the address bar or the toolbar can still find it.
What a glance actually takes in
A glance lasts a second, sometimes less, and it registers a shape before it registers any detail. A chat interface has a very particular shape: message bubbles stacked in a column, alternating sides, with a text box pinned to the bottom of the screen. That shape is now common enough to be recognised almost on sight, independent of the words inside it. A document editor has a different shape entirely, a single page with margins, a title at the top and body text running down it, and that is the shape Docognito puts in front of the chat.
This is why shape does more work than colour or wording in a glance test. Someone who is not reading your screen, only sweeping their eyes across it on the way to somewhere else, is pattern matching against interfaces they have seen thousands of times before, not parsing sentences. A page that matches the pattern of a document rather than the pattern of a chat wins that comparison before a single word is read, which is a lower bar to clear than it might sound, and also a more reliable one than hoping nobody looks too closely at the words themselves.
The table that matters here
Different kinds of looking find different things, and it helps to separate them rather than treat "can someone tell" as one question with one answer.
| Someone is | They would see | Covered by the disguise |
|---|---|---|
| Walking past and glancing at your monitor | A document page, no message bubbles | Yes |
| Noticing the tab title among several others | A generic document name | Yes |
| Reading the address bar on purpose | claude.ai or chatgpt.com | No |
| Checking your installed browser extensions | Docognito listed by name | No |
The two rows that say no are the ones worth remembering. Everything the disguise touches sits inside the page itself, and the address bar and the extensions list both sit outside it.
Distance changes what counts as a glance
How much detail someone actually takes in also depends on where they are standing and how your desk is arranged. A monitor angled toward a walkway, or a seat with its back to a doorway, turns almost every passing colleague into a glance test, since your screen sits directly in their eyeline for a second or two whether they mean to look or not. A monitor angled away from foot traffic, or a physical privacy screen fitted over it, cuts down how often anyone is even in a position to glance in the first place, and does so for reasons that have nothing to do with what is on the screen. The two approaches solve different halves of the same problem, and most people who worry about this end up using both rather than treating either one as sufficient on its own.
What survives a closer look
the address bar, which still reads claude.ai or chatgpt.com, in full, regardless of how convincing the page above it looks, because the address bar is part of the browser's own frame rather than part of the page. The Docognito icon sitting in the toolbar is the same story: visible to anyone who opens the extensions menu specifically to check, invisible to anyone who is not looking there. Neither of those is a flaw in the disguise. Both sit in a part of the screen no page-level tool can redraw, which is a limit of what a browser extension is rather than a limit of this particular one. A window switcher thumbnail raises the same question in a slightly different shape, covered separately in what Alt-Tab previews actually show.
Behaviour is a separate tell entirely
Even a perfect visual disguise leaves behaviour untouched. A pause before typing while an assistant's reply is still arriving, a large block of neatly formatted text appearing all at once instead of being typed out, or eyes that keep drifting toward a second window are all things a page redraw cannot reach, because none of them are on the page. A colleague who has worked alongside you for years may register a shift in your rhythm without being able to say exactly what changed, and no amount of visual polish on a document view addresses that kind of familiarity. A fuller account of those behavioural signs, separate from anything visual, is in what might give you away on a call.
What a glance catches, and what a closer look catches
A coworker's eyes crossing your monitor for a second on the way past is exactly the case the visual disguise is built for, and it does the job well. If the concern is someone deliberately checking your address bar, your toolbar, or the rhythm of how you are typing, none of that is solved by changing how the page looks, and no amount of polish on the document view will change it. Add Docognito for the glance, and treat a closer look as the separate question it actually is.