Greetings to all members, administrators and owners of this forum!

I am seeking answers from knowledgeable individuals who can address my question as stated in the title, which entails a few sub-questions:
- At what point of website traffic does it become advisable to migrate to a VPS?
- Is it possible for a hosting company to restrict the number of daily visits to a shared hosting site?
- How can one determine the type of hosting that a particular website is using?

As an example, I will discuss my own site. My website experiences seasonal fluctuations in traffic, ranging from several hundred visitors per day during summer to several thousand during winter. The peak occurs during December, where the daily average reaches approximately 7-9 thousand visitors. I have observed that during times of high traffic (several thousand visitors per day), the site becomes unavailable. I am curious about the feasibility of switching to VPS and how this move can impact the attendance and accessibility of my website.

Thank you.

Familiarize yourself with the limitations stated in your web hosting contract.
Consider upgrading if the current package no longer meets your needs.
This change should not adversely affect your site's traffic.
If your website is currently stable and has no issues, there may be no need to make a switch. However, if problems arise, consider migrating to VPS. Some hosting providers even offer VPS with built-in administration support to help avoid maintenance complications.
Since specific figures can vary depending on factors such as site optimization and database size, it's difficult to provide a hard-and-fast rule. However, an attendance of 3000 or more visitors might indicate that it's time to consider using VPS.

In addition, it's worth mentioning that while VPS is a great option for growing websites, it may not be necessary for smaller sites or those that do not require a lot of resources. It's important to weigh the costs and benefits of switching and determine what makes the most sense for your particular situation.

when it comes to VPS, make sure to choose one that has both a control panel and administration.
The former prioritizes convenience for the user and maintains the same experience as with virtual web hosting. The latter ensures stability and swift problem-solving.

Is it worth making the switch?
If you are satisfied with your current situation, then probably not.
However, opting for a good VPS can offer significant advantages if you are seeking change. It's important to note that using VPS with guaranteed resources may come at a slightly higher cost than standard web hosting, roughly equivalent to VIP hosting.
Yet, the benefits of greater flexibility are undeniable. With VPS, you can undertake actions such as caching on the nginx side, switching to PHP-PFM, and providing essential statics via Nginx, which are impossible on shared hosting services.

It's also worth keeping in mind that while VPS may provide more room for customization, it requires greater technical know-how and management skills. Thus, it's important to assess your own proficiency and comfort level before making the transition.

In terms of technology, the primary distinction between virtual hosting and VPS lies in their respective capabilities. Shared hosting lacks server and software configuration options, and its available applications and supported programming languages are beyond the user's control. Conversely, VPS offers greater control and versatility, allowing users to install gaming software, various programs, and take on web server administration tasks. Technical support may also administer VPS for a fee.

So which to choose: virtual shared hosting or VPS server?
Virtual hosting is suitable for projects of nearly any complexity, including blogs, corporate websites, small online stores, and information sites. It's an ideal option for novice webmasters, with pricing starting as low as $1 per month for a minimum plan that includes 3GB on an SSD, 1 website, 1 database, and options for PHP version selection via control panel.

VPS servers are better suited for complex projects, such as high-traffic websites or large and intricate online stores with a vast product inventory.

It's important to note that while VPS may provide greater control and functionality, it requires more technical expertise to manage effectively. Thus, it's crucial to assess your own needs, budget, and skill sets before making a final decision.

Please, be more specific... I mean requirements: disk space, bandwidth, server location, budget?

Take a look at Rightservers.com Managed VPS solutions.
I'm very satisfied with the fast and accurate technical help, ease of use and wide service offer.
I'm actually in the works of transferring all my websites to this web hosting provider.

Many forum participants thought about the options for switching to VPS. It is important to understand the conditions and the gain from such a transition. In most cases, this hosting is safer and faster, so everyone is recommended to connect. You will feel the difference immediately from using a modern VPS tool.

Let's address each of your sub-questions in detail.

1. At what point of website traffic does it become advisable to migrate to a VPS?
The decision to migrate to a VPS (Virtual Private Server) depends on various factors such as the number of visitors, the complexity of your website, the resources it consumes, and the level of control and customization you require. As a general guideline, when your website consistently experiences several thousand visitors per day, especially during peak times, it's prudent to consider migrating to a VPS. This allows for dedicated resources, better scalability, and improved performance, which are essential for handling high and fluctuating traffic levels.

2. Is it possible for a hosting company to restrict the number of daily visits to a shared hosting site?
Yes, it is common for hosting companies to impose limitations on shared hosting plans, including restrictions on the number of concurrent visitors or daily visits. These limitations are in place to ensure fair resource allocation among multiple websites hosted on the same server. When your website exceeds these limits, it can lead to performance issues, slowdowns, or even temporary unavailability, as you have experienced.

3. How can one determine the type of hosting that a particular website is using?
There are several ways to determine the type of hosting a website is using. One method is to use online tools or browser extensions that can provide insights into the web hosting infrastructure of a site. Additionally, analyzing the website's response times, server headers, and error messages can often reveal clues about the type of hosting it utilizes. In some cases, contacting the website owner or webmaster directly may also provide information about their hosting setup.

Regarding the feasibility of switching to a VPS for your website, it appears to be a viable option based on the seasonal fluctuations and peak traffic you described. Migrating to a VPS can positively impact the attendance and accessibility of your website by providing dedicated resources, better stability, and the ability to handle increased traffic without compromising performance. It's important to assess your specific needs, budget, and technical capabilities before making the transition, but in many cases, a VPS can significantly improve the overall experience for both you and your site visitors.