Filed Under: How to Repair, iPhone

[FIXED] The Certificate for This Server Is Invalid


Written by Jack Lin

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The Certificate for This Server Is Invalid

The certificate for this server is invalid” is an error that appears on iPod Touch, iPad, and iPhones. Many iOS users say that they experience this issue out of nowhere.

Well, this error triggers when they try to access features like the Mail app, iTunes Store, or App Store.

Some users have also experienced the same error on their iOS devices when they try to access websites.

Well, if you are troubled by this error, don’t be frustrated. We will let you know how to solve this error quickly.

The certificate for this server is invalid

Quick Methods to Get Rid of “The Certificate for This Server is Invalid” Error

Below, we list down some quick tips so you can follow them to fix this ‘The Certificate for This Server Is Invalid’ issue. These methods are applicable to iPhones, iPads, and iPod Touch devices.

  • Restart your iOS device.
  • Relaunch the app after force closing it.
  • Check if the Date & Time Settings of the device are set to automatically. If not, set it to Automatically.
  • If the issue is related to the Mail app, just delete the respective account and add it again.
  • Reset all the settings on the faulty iOS device.

What Does It Mean by a Certificate?

When you browse the web, there are different types of websites; When you try to reach a secured website, it encrypts the data for your own safety; And when it comes to encrypting data, it requires a site or host certification.

It should come from a trusted certification authority (which is known as CA). This is to verify whether the site is secured or not.

In fact, these security certificates are a part of its specific protocol known as HTTPS. Well, HTTPS is the term used for Hypertext Transfer Protocol Secure. This protocol is designed particularly to encrypt all the data that moves between the device and the server.

In general, a certificate is there to make your data perfectly encrypted. As a result, the information that is sent back and forth to the device is well-secured and private.

The error on the certificate is a strong indication of risk. It says that the respective website or the server is not that trustworthy to browse.

If you experience such an issue, do not enter any sensitive private and confidential data. In that case, you should immediately close the browser window and exit the website.

Besides, let’s figure out how to fix the error retrieving information from the server RH-01 issue.

What Are Other Errors Associated with the Certificate?

You’ll come across various certificate errors whenever a server site identifies a potential risk with a certificate. Well, one of the most common reasons for such an error to appear is an incorrect date on the system.

That means that when your device’s date & time is incorrect, that could lead to various certificate-related errors. However, the good news is that it could be fixed very easily.

First, Let’s Learn How to Get the Certificate for This Server is Invalid and Fixed.

  • First, you should check your iOS device (iPad, iPhone, or iPod touch) for its date. To get it done, you should first go to “Settings” and then go to “General.” Then, choose “Date & Time.”
  • Now, you should toggle the button so it should appear “Set Automatically” rather than entering manually.
What are other errors associated with the certificate

For MAC users, please make sure that you follow the steps mentioned below.

  • When it comes to Macs, you should go to “System Preferences.”
  • Then, locate the “Date & Time” option and check the box labeled “Set date and time automatically.”
What are other errors associated with the certificate

What can you do if you continue to see this error after updating the respective date & time? In this case, it could be an error associated with the certificate itself. For instance, it could be due to an expired certificate, so you should renew it.

So, the best option is to prevent using that website. You can check the website later on and see if the certificate warning is gone. If it is gone, you can use it without any fear.

The truth is that there’s nothing to do if the problem is associated with the server or the website. All you can do is wait for the certificate to be renewed.

Toggling off or Resetting the Fraudulent Website Warning of Safari

What if you see The certificate for this server is an invalid error with a site you trust? If that is the case, you can consider toggling off Safari’s warnings to overcome it. This option is recommended only for websites and blogs that you own.

When you turn on the option called “Fraudulent Website Warning,” Safari will display a specific warning message. It is displayed that the respective site is suspected of phishing or any other suspicious behavior.

When you browse the web with this feature switched on, Safari will start to verify the site address. It is done through the Google Safe Browsing feature. The purpose of this process is to check if the respective website is fraudulent or not.

It is true that we don’t recommend you disable this feature. However, if you still want to do it, you can disable it simply by going to “Settings.” Then, go to “Safari” and toggle off the option called “Fraudulent Website Warning.”

Toggling off or resetting the Fraudulent Website Warning of Safari

Here’s a Better Option to Reset the Settings

  • Grab your device and go to “Settings.” Then, choose the option called “Safari.”
  • Once you have done that, you can toggle off the option called “Fraudulent Website Warning.”
  • After that, you should go on and restart the device.
  • You should go back to the same settings and then toggle the option called “Fraudulent Website Warning.”
  • Now, you should launch the faulty app or the website once again to see if it works.

Do You See the “The Certificate for This Server is Invalid” Error on a Mac?

Are you using a Mac and experiencing a “The certificate for this server is invalid” issue with your Mac? If that is the case, just follow the below steps that are mentioned in this section.

Do you see "The certificate for this server is invalid" error on a Mac?

You should utilize the Mac’s Certificate Assistant in Keychain Access. This should be done to evaluate a certificate simply by looking at the trust policy.

Follow the Steps to Get It Done Without Much Trouble.

  • First, you should launch the feature called “Keychain Access“. It is located under Mac’s Applications and then inside the folder called “Utilities“.
  • Now, you should choose the option called “Certificates,” which is located under “Category“.
  • After that, you should simply perform double-click on the certificate, which should be evaluated.
  • Once you have done that, you should go to the window’s top menu.
  • Then, you should go to the option called “Keychain Access.”
  • After that, you should go to “Certificate Assistant” and choose the Evaluate certificate name.
  • Once the evaluation certificate name is chosen, you should also select a trust policy.
  • After that, you should click on the option labeled “Continue“.

Some users say that they experience an “The certificate for this server is invalid” issue with the mail app.

If You Are Experiencing the Same Trouble, You Can Use the Steps Mentioned Below to Overcome It.

  • First of all, you should launch the mail app on your iOS device.
  • After that, you should go to its “Settings” option.
  • Under that, you can find the option called “Passwords & Accounts“.
  • Then, you should see the email accounts that are synchronized to the mail app. Tap on the respective email account.
  • Once you have done that, you should go to the option called “Advanced.”
  • Now, you should toggle off the option called “Use SSL.”
Do you see "The certificate for this server is invalid" error on a Mac?


1. What should I do if I encounter a warning about an invalid certificate?

If you encounter a warning about an invalid certificate, it is advisable to exercise cautionand take it seriously. Avoid entering any personal information on the website and consider navigating away from it. Contact the website owner if you believe it is a legitimate website and notify them about the certificate issue.

2. Can I ignore the warning and proceed to the website with an invalid certificate?

While it is possible to ignore the warning and proceed to the website, it is not recommended. Browsers display these warnings to alert you about potential security risks. Proceeding to a website with an invalid certificate may expose your personal information to unauthorized access or malicious activities.

3. How can website owners resolve issues with invalid certificates?

Website owners can resolve issues with invalid certificates by renewing the certificate if it has expired, fixing configuration errors during installation, or obtaining a trusted certificate from a reputable Certificate Authority. It is essential for website owners to address certificate issues promptly to maintain the security and trustworthiness of their websites.

4. What preventive measures can I take for a secure browsing experience?

To ensure a secure browsing experience, keep your web browser up to date with the latest security patches, be cautious when visiting unfamiliar or suspicious websites, and install reputable antivirus and security software on your devices. These preventive measures can help protect you from online threats and minimize encounters with invalid certificates.

5. What is the role of Certificate Authorities in validating certificates?

Certificate Authorities play a vital role in validating and issuing SSL certificates. They verify the identity of website owners and ensure that certificates are issued to legitimate entities. By involving Certificate Authorities, trust is established between websites and users, creating a secure environment for online communication.


So, that’s how to get rid of the ‘The certificate for this server is invalid‘ error. Although we call it an “error,” it is not an error if truth is to be told.

In fact, it is a precautionary step that prevents you from accessing suspicious websites. That way, the device tries to protect your sensitive data from being compromised.

Well, we don’t recommend our readers neglect the “The certificate for this server is invalid” message. However, if you really want to do it, you can follow the steps mentioned above.

This is specifically not harmful if you do it with your own website or blog. So, do it with a good understanding of the outcome. Good luck!


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