Account safety

Automation is only worth it if your account survives it. Everything Sellu does runs inside your own browser session — no shared bots, no server-side logins — and every action goes through a safety layer designed to look like a fast human, not a script.

Human-like pacing

• Every write action (message, offer, repost, follow…) is queued with a per-action minimum delay plus random jitter — typically several seconds between actions.
• Quantity-scaled slowdowns: the bigger the batch, the longer the gaps (large jobs run up to 2.5× slower per action). A 200-item job spreads naturally over hours.
• Daily caps are enforced per action type — for example 80 messages, 60 offers, 100 follows, and 100 reposts per day.

Graceful failure handling

• Rate limits & captchas — on a 429 or an unsolved challenge, the entire queue pauses (about a minute) and you get a visible banner and toast, instead of the extension hammering the marketplace. DataDome and Cloudflare challenges are solved silently in the background when possible.
• Blocked requests — if the marketplace blocks a request from the extension, it's transparently re-issued through the real page context.
• Expired sessions — a 401 triggers an automatic session refresh and one retry; logging out is detected and handled cleanly.

Where your data lives

Listings, orders, conversations, notes, and SKUs are cached in your browser's local storage and IndexedDB. Your stock, publications, and sales sync to your own Sellu dashboard so you can manage them from anywhere — but your Vinted credentials never leave your browser, and no marketplace action is ever performed from our servers. AI generation runs on Sellu's servers using the credits in your plan; only the photos and listing fields you're generating from are sent.