1. What A Cookie Is
A cookie is a small text file a website stores in your browser to remember a few things, such as the language you chose. Alongside cookies, the website and the App use your browser’s local storage (localStorage, sessionStorage); that data stays on your device and is not sent along with every visit the way cookies are.
Cookies and online behaviour measurement data can be personal data. How we process personal data is explained in the Privacy Policy.
2. Three Groups Of Cookies
- Necessary: keep the website and the App working safely, such as remembering your language, keeping you signed in and blocking automated traffic. These need no consent but are all listed below.
- Measurement: count visits and usage so we can improve the service. On by default; you can turn them off at any time.
- Advertising: measuring advertising performance. They only run with your consent.
3. backcom.io Website: Necessary Cookies
| Name | Set by | Purpose | Lifetime |
|---|---|---|---|
NEXT_LOCALE | Backcom.io | Remembers the language you are reading. | Until you close the browser |
cf_clearance | Cloudflare | Confirms you are a real visitor after an automated-traffic check. Only appears when that check is shown. | 1 year |
Cloudflare may set other short-lived security cookies to block automated traffic, under Cloudflare’s own policy.
4. backcom.io Website: Data Stored In Your Browser
| Name | Purpose | Lifetime |
|---|---|---|
bc-theme | Remembers whether you chose light or dark mode. | Until you clear browser data |
bc_disc_v1 | Remembers that you have read the risk notice, so it does not reappear on every visit. | 30 days |
bc_riskbar_v1 | Remembers that you closed the risk warning bar. | Until you clear browser data |
bc_consent_v1 | Remembers your cookie choices for each group (Measurement, Advertising). | 12 months |
bc_ldtb_until | Remembers that you closed the event bar at the top of the page. | 7 days |
bc_rate_… | Remembers the stars you gave an article, so they show correctly when you come back. | Until you clear browser data |
bc_voter | A random code, not linked to your name or account, sent with your star rating so each browser counts as one vote per article. | Until you clear browser data |
…-evergreen_interval, …-evergreen_due_date | Store the timing of the countdown timer shown in some articles. | Until you clear browser data |
5. Backcom App (app.backcom.io)
| Name | Group | Purpose | Lifetime |
|---|---|---|---|
token | Necessary | Keeps you signed in. | 1 day, or 30 days if you choose to stay signed in |
NEXT_LOCALE | Necessary | Remembers the App language. | 1 year |
g_bind | Necessary | Supports signing in with Google. | 15 minutes |
| App browser storage | Necessary | Stores your profile for display, the interface theme, whether your balance is hidden, and unfinished sign-in or verification steps. | Until you sign out or clear browser data; temporary sign-in data is cleared when you close the tab |
| Google reCAPTCHA | Necessary | Blocks automated sign-ups on the sign-up page and contact form. | Under Google’s policy |
_ga, _ga_8NLTVFVY00 | Measurement | Google Analytics counts visits and how the App is used. | 13 months |
bc_consent_v1 | Necessary | Remembers your cookie choices in the App. | 12 months |
You can change the App’s cookie choices at any time in App cookie settings.
6. Measurement And Advertising Cookies
Measurement cookies (Google Analytics) are on by default when you visit the website or the App, so we can count visits and see which content is useful. You can turn them off at any time: press Reject on the cookie bar, or switch off Measurement via the “Cookie settings” link; the _ga cookies already set are then deleted. Optional advertising and functional cookies are switched on only after you consent to each group; they are off by default, and the button to refuse is as prominent as the button to accept. We ask again after at most 12 months, or when the cookie list changes.
The backcom.io website uses these two tools:
| Name | Group | Purpose | Lifetime |
|---|---|---|---|
_ga, _ga_8NLTVFVY00 | Measurement | Google Analytics counts visits and how the website is used, as statistics. | 13 months |
_fbp, _fbc | Advertising | Meta Pixel (Facebook, Instagram) records visits that come from ads and measures ad performance. | 3 months |
While Measurement is off, Google Analytics neither sets nor reads cookies in your browser; Google only receives cookieless signals used to estimate overall figures (Google Consent Mode). For visitors from the European Union, the European Economic Area, the United Kingdom and Switzerland, Measurement is off by default until you consent. Meta Pixel only loads after you consent to Advertising.
7. Third-Party Content
- YouTube videos: videos are embedded in privacy-enhanced mode (youtube-nocookie.com). YouTube (Google) only sets cookies once you press play, under Google’s policy; Google still receives your IP address when the video frame loads.
- YouTube thumbnails (Community page): loaded from YouTube’s image servers (i.ytimg.com), which receive your IP address; pressing a video opens YouTube in a new tab.
- TikTok video lists (Community page): the TikTok frame only loads when you press "Load Latest Videos". Once loaded, TikTok may set cookies under its own policy.
- Author pictures: loaded from Gravatar, which receives your IP address when the picture loads.
- Links to brokers: when you open a broker’s website, the broker sets its own cookies, including a cookie that records Backcom.io’s referral code.
Backcom.io cannot read or control cookies set by third parties.
8. How To Refuse Or Delete Cookies
You can block or delete cookies in your browser settings:
- Chrome: Settings → Privacy and security → Third-party cookies
- Safari: Settings → Privacy → Manage Website Data
- Firefox: Settings → Privacy & Security → Cookies and Site Data
- Edge: Settings → Cookies and site permissions
To opt out of individual services: Google Analytics opt-out add-on · Google Ad Settings.
Note: if you block cf_clearance, Cloudflare may refuse you access to the website. If you block token, you cannot sign in to the App. Blocking the measurement and functional groups does not affect reading anything.
9. Changes To This Policy
When the website or the App adds or removes a tool that sets cookies, we update the lists above before the change applies, with a new version number and effective date. New cookies that need consent only run once you agree.
10. Contact
Questions about cookies and your data: [email protected] · WhatsApp +84 333 360 365.
Version History
- v2.106/11/2026 · Current versionMeasurement cookies (Google Analytics) are on by default on the website and the App and can be turned off at any time; advertising cookies still only run with your consent.
- v2.029/10/2026Rewritten for the new website and the Backcom App: re-measured cookie list, three cookie groups and the consent mechanism.
- v1.025/09/2026Previous version, describing the old website.
Questions About This Document?
Write to [email protected] and mention the section number.
