Metrics for Evaluating Performance of Logistic Regression
Since Logistic regression is not same as Linear regression , predicting just accuracy will mislead. 
** Confusion Matrix** is one way to evaluate the performance of your model. Checking the values of True Positives, False Negatives ( Type II Error) are really important.

** ROC Curve** Receiver Operating Characteristic(ROC) summarizes the model’s performance by evaluating the trade offs between true positive rate (sensitivity) and false positive rate(1- specificity)

The below link will give you more information:

https://www.analyticsvidhya.com/blog/2015/11/beginners-guide-on-logistic-regression-in-r/