طريقة الاستخدام
Enter total visitors and conversions for each variant. The tool returns both conversion rates, the difference, and a significance value indicating how likely that difference is to be chance.
← مركز الأدوات
دلالة اختبار A/B
أدخل البيانات المطلوبة، وشغّل الأداة بأمان، واطّلع فورًا على نتيجة قابلة للقياس.
أداة محلية
لا تستدعي هذه الأداة أي خدمة خارجية. ولا يُحتفظ بالمدخلات الحساسة.
ما الذي تفحصه هذه الأداة
The difference between the two rates is evaluated with a two-proportion z-test. The calculation uses only the four numbers you enter.
كيف تقرأ النتيجة
Significance does not prove the difference is real; it states how unlikely the observed gap is under chance alone. A 95% confidence threshold is common convention, not a mathematical requirement. A test that does not reach significance usually means "not enough data yet" rather than "no difference".
أمثلة
Compare two landing page variants, two headlines, or two form lengths.
حالات الاستخدام
Useful for campaign teams, landing page owners and conversion optimisation work.
أخطاء شائعة
The most damaging mistake is stopping the moment significance appears, which sharply increases false positives. The second is ending mid-week: weekday and weekend behaviour differ. The third is changing more than one variable and attributing the difference to a single cause.
حدود هذه الأداة
The tool knows nothing beyond the numbers you type. It cannot see whether traffic was actually randomised, whether the same user was counted twice, seasonality, or a campaign running at the same time. Without those, the result is arithmetically correct but practically misleading.
الخصوصية ومعالجة البيانات
The numbers you enter are not stored; only an anonymised run record is kept.
الأسئلة الشائعة
When should I stop the test?
Decide the duration and sample size before starting and hold to it. Stopping as soon as significance appears inflates the false positive rate.
Does 95% significance prove the difference is real?
No. It says the observed difference is unlikely under chance alone; it is not a claim of certainty.
Can I use it with low traffic?
You can, but reaching significance is hard at low volumes and any result you do get is fragile.