jquery verification code cannot be seen clearly and change it to another one

With the rapid development of the Internet, website security requirements are getting higher and higher. To enhance website security, many websites use verification codes to prevent machines from automatically registering or logging in. The most common one is jquery verification code.

jquery verification code protects the security of the website by preventing automated scripts from automatically registering or logging in. It is a graphic composed of numbers or letters, and the user needs to enter the correct verification code to proceed to the next step. On many websites, we often see a "Can't see clearly" button. This is because when users cannot recognize the numbers or letters in the verification code, they can click this button to obtain a new verification code.

The visual effect of jquery verification code is very important, because whether it is online shopping or online banking, a bad user experience will affect the credibility and reliability of the website. Therefore, it is very important to design a verification code that is easy to recognize.

Let’s take a look at how to design a good jquery verification code:

1. Color selection

The choice of color is very important. A light background and bright character colors are an ideal combination. For example, it is common to use yellow letters or numbers on a blue background, or black letters on a white background.

2. Shapes of characters

The shapes of characters should be clear, simple, and easy to distinguish, such as commonly used numbers and letters. Users should not have to struggle to identify a verification code.

3. Character size and font

Character size and font should be moderate, not too small or too large, which can easily cause user discomfort. Choose a clear and legible font to ensure the CAPTCHA is readable.

4. Background shapes and patterns

The background shapes and patterns should be simple and rhythmic, which will affect the difficulty of users identifying the verification code. Visuals that are too easy or difficult can be frustrating.

5. Change one

However, even if we design a good verification code, users may still not be able to see it clearly. At this time, a good solution is to add a "change one" function. In this case, the user can click a button to regenerate the verification code, or use an audio or visual-based alternative.

In general, jquery verification code is a very effective tool for protecting website security. However, well-designed CAPTCHAs are very important. We need to take into account user experience and ease of use to ensure users are able to use it and not be intimidated.

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