Google is testing a persistent sidebar on the left side of desktop search for some Chrome users, according to Search Engine Roundtable coverage reported on October 29, 2026. The change moves the vertical bar from AI Mode onto the main search results page, packing a small Google icon, a button to start an AI chat, past chat history, and a settings icon on the far left of the page.
Early reports say the sidebar breaks page layout for some users and, critically, includes no button to collapse or hide it. The only current workaround reported is blocking the page element manually. That absence is telling: if the test were a polished feature, a collapse control would be the first thing shipped, so the current version reads as an early experiment rather than a finished design.
The test also appears limited. The reporting author, running the latest Chrome 156 build, did not see the new sidebar, which suggests an A and B test or a gradual rollout rather than a full launch. SEOs should therefore treat screenshots as evidence of a test, not a confirmed interface change, and should not redesign pages around it yet.
The strategic logic is clear even if the design is not. Google has been rolling out app integrations for Search AI Mode, and a persistent sidebar turns AI chat from a destination into a companion present on every search. If users can start an AI conversation without leaving the results page, more queries will end inside AI Mode rather than on publisher pages, which extends the traffic pattern Reddit and others have already flagged.
For publishers, the sidebar is another reason to optimise for the AI answer itself. When the chat entry point sits beside every results page, the assistant summary becomes the default first stop, and the classic listing becomes the second. Pages that are easy to cite, with clear answers near the top, stand a better chance of surviving that shift than pages that bury the answer.
Watch for three signals: whether a collapse button appears, which is the sign a test is maturing; whether the sidebar reaches logged-out users or stays with signed-in Chrome users; and whether chat history in the sidebar drives repeat AI Mode usage. Any of those would confirm the sidebar is becoming infrastructure rather than an experiment.
Until then, the right response is monitoring, not reaction. Note the sidebar in your own searches, screenshot it if it appears, and check whether your pages still surface in the AI chat it launches. A layout test that never ships costs nothing to ignore, but a shipped sidebar that changes where users click costs a lot to miss.
The left sidebar test belongs to a longer trend: the classic results page keeps losing space to other elements, from AI Overviews at the top to shopping units, knowledge panels, and now a persistent chat column on the left. Each element takes attention that once went to organic listings, and each one makes the first organic result a little less prominent. The sidebar is unusual only in that it would be permanent rather than query-dependent.
For site owners, the trend argues for designing pages that work as cited sources, not just as ranked listings. A page that an AI chat can quote accurately will still reach users through the sidebar chat even if its classic listing sits below several new elements. That means clear answers near the top, strong headings, and facts stated plainly enough to survive summarisation. The results page may keep shrinking, but a quotable page keeps its route to the user.
Sources: PiunikaWeb, October 29, 2026, reporting Search Engine Roundtable.
Linkbaits helps you create content that earns citations and backlinks. Start with the free tools and build your first linkable asset this week.
Start free trial