How to use

Feedback & Errors

Billing Related


1.    Why is website performance important?

No one likes slow websites. Simple. As per the research website speed is one of the main factors for the customer loyalty to the website. Google openly declared that they will give importance to the website speed in their rankings. If you want to make your users happy,get good reviews & more users then you need to make your website as fast as possible.

2.    Why do we need to care about Perceived Performance?

We are developing websites for the users. We need to measure how the user is feeling about our website performance instead of calculating some technical metrics which does not reveal anything related to the user's perception.

3.    How do I know you are measuring Perceived Performance accurately?

You can look at screenshots of the web page while it's loading in the browser using our VIDEO option. Based on the screenshot images you can easily judge us how accurate we are. Right now we are measuring Perceived Performance with 95% accuracy. We are confident that we are going to reach 99.9% accuracy very soon as we get more data.

4.    What is the difference between General Performance Score and Perceived Performance Score?

General Performance Score is based on regular performance metrics which everyone uses to measure website performance. At Perfhack we generally don't give much importance to it but at the same time, we want to provide general data to our users so that they can utilize them whichever way they want. Perceived Performance Score is based on PUIT which measures Perceived Performance. We care about this metric a lot because it shows exactly how users are feeling about website performance.

5.    What are Performance Insights and SEO Insights?

They are based on general recommendations. You don't need to follow all of them. Try to follow them only if it makes sense to you.

6.    How many devices and locations you use?

Right now we test website speed in desktop, laptop, 6 different tabs and 6 different mobiles. We use lots of devices in 3 different locations to provide this service.

7.    Why do i need to check performance in different types of devices?

As you know, your customers use different devices to browse the website and all the devices function differently. So instead of guessing how your website may function in a particular device, it is always better to test it directly on the device and solve any issues you may have.


1.    How your tests are done?

For each request, we open Chrome Web Browser across different devices, clear the cache and then do the tests. We will collect all the data from Chrome, analyze it in our server and then we generate reports.

2.    Do you depend upon any external software?

We use lots of open source and in-house built stuff. Don't worry, all the stuff we use is under our control.

3.    Why its taking long time to get the results?

We are testing your website on different devices across different locations. This will take time. We are trying our level best to complete the tests as soon as possible. But we also need to wait for the complete website load across all the devices, we can't help if the website takes a long time to load.

4.    Are you guys providing API?

We are working on it. You will hear back from us very soon.


1.    How to use perfhack.com?

Enter the website name. Choose the location, device and connection type. Click the Test button. That's it. We will test your website speed across all the device types you chose and generate the report.

2.    Which location do i need to choose?

Righ now we have three test locations. 1) North America 2) Asia 3) Europe. You need to choose a location where most of your users come from. By default, it is "North America".

3.    Which connection type I need to use?

It depends on how your users access your website. If most of your users come from Mobile devices then choose 4G LTE. Otherwise, choose Wifi. By default, it is "WIFI".

4.    Which device type I need to select?

If you know where most of your users come from then chose that device type. Otherwise just choose All Devices.

5.    Can I test any website or only mine?

You can test any website you want as long as it is legal to browse that website in your country.


1.    How safe is your Payment Gateway?

We use Paypal as our payment gateway. We don't store any of your payment information. We use top-notch industry standard security practices to transfer data.

2.    After making a payment how long it will take to get performance reports?

After payment is done successfully, we start analyzing your web page as per the plan within 24 Hours. So you will start getting daily reports from next day onwards. You can use our tool extra features on the home page like testing on mobiles & tabs immediately after the payment.

3.    I have a problem with your payment gateway, what should I do?

Please contact us at contact@perfhack.com immediately. We will get back to you asap.


1.    I am getting errors while testing. What to do?

We are very sorry for the inconvenience. Please reach us using our contact us page.

2.    I want an extra feature. How to Suggest?

Great. We are always looking for good suggestions. Please reach us using our contact us page.