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简体中文Cookies
Britlens does not set cookies, so there is no cookie banner. We run no analytics or advertising service.
What we store in your browser
This stays on your device. We cannot see it and it is not sent to us. Most of it is written only when you use the feature it belongs to.
| Key | Type | Purpose | Lasts |
|---|---|---|---|
| britlens-trip | localStorage | Your saved places and saved journeys (from, to, travel style and the lines used) in My trip. Written only when you save something | Until you clear it |
| britlens-prefs | localStorage | Your "My needs" choices (step-free access, travelling with kids) so the filters stay on as you move between pages. Written only when you change a choice | Until you clear it |
| britlens-pwa | localStorage | App install and offline: how many pages you have viewed, the language of the last page you viewed (so the installed app opens in it), whether the app is installed, and when you dismissed the install prompt (it then stays hidden for 90 days) | Until you clear it |
| britlens-packing-v1 | localStorage | Packing list page only: the month and region you chose, the items you ticked and any items you added | Until you clear it |
| britlens-linestatus-v1 | sessionStorage | A 3-minute cache of Transport for London line status for the lines on your saved and planned journeys | Until you close the tab |
| britlens-tfl-cache-v1 | sessionStorage | A short-lived cache of Transport for London answers (stop search, line status for 3 minutes, journey results for 1 minute), so the journey tools stay fast and can show your last results when TfL is busy or you are offline. It can include places you typed into the journey planner | Until you close the tab |
| britlens-stations-v1 | sessionStorage | A cache of the London station list to speed up the journey tools | Until you close the tab |
| britlens-near-stations-v1 | sessionStorage | Near me: the nearest stations to your starting point (position rounded to about 100 m), reused for up to 30 minutes | Until you close the tab |
| britlens-cgw-av | sessionStorage | Whether the AI concierge is available, so pages ask at most every 10 minutes | Until you close the tab |
| britlens-cgw-hide | sessionStorage | Remembers that you closed the concierge button, so it stays hidden in this tab | Until you close the tab |
| britlens-cgw-conv | sessionStorage | Only if you use the concierge chat: your messages and the plan it gave you, so the conversation survives moving between pages. Ignored after 3 hours; "Start again" deletes it | Until you close the tab |
Offline copies
The site has a service worker, which keeps copies of pages and files in your browser's Cache Storage so it loads quickly and works offline. These copies contain only the site's own public content.
| Cache | Type | Purpose | Lasts |
|---|---|---|---|
| britlens-shell-…, britlens-static-v1 | Cache Storage (service worker) | Copies of core pages, pages you have visited, and the site's scripts, fonts and icons, so the site opens quickly and works offline | Replaced on each site update; size-capped |
| britlens-img-v1 | Cache Storage (service worker) | Up to 150 recently viewed images (from this site and Wikimedia Commons) | Oldest removed first |
| britlens-pf-v1 | Cache Storage (service worker) | Files of the site search index | Size-capped |
| britlens-saved-v1 | Cache Storage (service worker) | Only pages and images you choose to "save for offline" (up to 25 MB) | Until you remove them or clear site data |
| britlens-audio-v1 | Cache Storage | Only if you press "Save audio for offline" on a walk: the audio files of that walk | Until you clear site data |
Third-party services
Services we load (such as map tiles, the embedded OpenStreetMap maps, Wikimedia Commons photos and photos from venues' own websites) receive your IP address and may set their own cookies or storage under their own policies. The full list is on our privacy page.
How to clear it
- Open My trip and remove your saved places, or
- clear site data for this site in your browser settings. This removes everything listed above.