Privacy
We don't ask who you are. The check stores your answers so it can build your report and link your retest, and nothing that names you.
What we never ask for or store
- Your name, email address or phone number
- Your school, or your parents' names or contacts
- Your age or date of birth
- Your browser's identity string or time zone
If you type an email address or phone number into a text box, the server removes it before saving.
To stop abuse, the server counts requests per network address for the current day. The count stays in memory, is never written to disk, and is gone within a day.
What we store
- Your answers, which answers you crossed out or changed, how long each question took and how sure you felt
- The short reasons you give for some answers
- Your school year, curriculum, and the score range you give for Reading and Writing and for Math
- Your screen size and browser language, so we can fix layout problems
Your first name and personal code
Before the first question you get a personal code such as RIZKY-ABCD-EFGH-JKLM. The first part is the first name you typed; it stays on your device and is never stored on our server. The rest is a random code. Type it in on the start page, on any device, to see your results again or start your retest. We keep only a scrambled (hashed) form of the random part, so if you lose it we can't look it up for you.
Why we keep it
To build your report, to link your retest, and to improve the questions. We never sell or share your answers and we don't use ads or tracking scripts.
How long we keep it
Up to 12 months, then it is deleted. Encrypted backups roll over on a schedule, so a deleted answer also leaves the backups within 14 days.
Deleting your answers
Email [email protected] with the Check ID shown at the bottom of your report. We delete that sitting and confirm.
Progress links for parents
For students in Rizky's daily drill, Rizky can make a private link for the student's parent. It shows, for the last four weeks, the days practised, how many questions were answered and how many were right, the skills practised this week and how many question packs are waiting. It never shows the questions, the student's answers or reasons, or Rizky's lesson notes. Making a new link switches the old one off, Rizky can switch it off at any time, and it is deleted with the student's other records.
Who runs this
Pickworth Lab is run by Mumtaza Rizky Iswanda. The site is hosted on our own server and delivered through Cloudflare.