What we offer
TestCluster is a free, independent practice website. You can choose a topic, answer original questions, see a short explanation, and track your best score in your own browser. You do not need to make an account.
What we do not offer
We do not sell official exam questions, issue certificates or claim to be approved by OSHA, CompTIA, AWS, Microsoft, IELTS, DVSA, RTA, College Board or USCIS. Practice scores are not official scores.
How content is made
Our editorial material is written in our own words using public descriptions of learning objectives, well-known subject facts and official guidance for reference. Each course page links to an official source. Rules and exam formats may change, so always check those sources before your test.
Corrections and quality
Accuracy matters more than the number of questions. This launch library is a starting set, not an exhaustive exam bank. If a question looks wrong, use the source link and check the current official rules. There is no public correction inbox yet. If you find an issue, verify the official source; questions require editorial review before this library is widely promoted.