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What business goals do you need a virtual assistant for?

Smart systems are universal tools capable of solving diverse tasks. Automated services that simplify the work of the company are used in various economic niches. The most extensive area where virtual assistants are used is perhaps the service industry. Banks, mobile companies, Internet providers have been successfully practicing communication with customers through chatbots for a long time. For example, a virtual bank assistant helps to order a bank card or check the balance on an existing one, while a telecom company's robot assistant is able to accept an application for a tariff change or answer questions about the causes of technical problems. And the business robots of mobile operators interact with many thousands of customers almost every day: they receive calls, send SMS with the requested information, switch tariffs and option packages.

Medical clinics and fitness centers, taxi and logistics companies, restaurants and catering services, hotels and airlines trust their business processes to voice virtual assistants. Such different areas are united by the mass nature of the clientele, which must be accompanied from ordering a service to its implementation. Learn about debt calculator.

For example, a patient who has signed up for dental prosthetics should receive a reminder from the administrator on the eve of the visit. In one day, the treatment will not be completed, and the client will need to visit the dentist a couple more times. At the same time, you need to remind him in advance about each visit, and the next day inquire about how you feel. If consultation is required, it is necessary to switch the call to the attending physician. Usually, all this work is done by the clinic administrator in parallel with ordering medicines, accepting payments and issuing closing documents, answering the questions “how to find you” and “how much does it cost to cure uncomplicated caries”. The larger and more popular the clinic, the higher the workload of frontline employees. In such a situation, the risk of staff turnover increases, and the company may lose an experienced employee just because that he was tired of taking on low-skill side tasks. But as soon as you connect a virtual voice robot to the process, up to 80% of the telephone routine will be removed from the administrator.

Similarly, voice bots can be used in beauty salons, car service stations, and online schools. With their help, you can sign up for individual sports training, for consultations with lawyers, nutritionists or psychologists.

Automated smart services make it easier for live colleagues to process bookings for hotels, restaurants, and airline tickets. They help the client to choose the time and place of delivery of groceries and restaurant meals, business correspondence, parcels and gifts. These business assistants can also be used to collect feedback. They will take an interest in the overall rating for the service, and they will clarify whether the courier was late, whether the contents of the package are intact, and whether the pizza has cooled down on the way to the customer. Unlike humans, artificial intelligence is impartial and will enter into the report exactly the data that it receives from the client.

Another area of ​​entrepreneurs who need a virtual assistant is online shopping . In business in a virtual environment, the help of artificial intelligence is especially appropriate. The bot will gladly take up the case of re-engagement: if a potential buyer abandoned the cart one step away from paying or stopped looking at the online storefront more than six months ago.

Previously, the use of robots in communication with customers was available only to large corporations. Today, such an assistant can be “hired” by medium and small businesses. To do this, you will need to conclude an agreement, install a program, create a personal account and prescribe a scenario of actions. Many developers try to make their services as simple and easy to use as possible. Customization of commands and scripts is within the power of any PC user, integration with popular CRM formats - without additional program codes.

What is NFT and blockchain

Blockchain technology has existed for more than twelve years, and during this period it has become a worthy alternative to the classical financial environment. Not the last role in its development was played by the fact that centralized financial institutions are increasingly subject to criticism and a growing level of distrust on the part of the population.

Blockchain technology is at the heart of how cryptocurrencies work. In fact, it is a database, which consists of interconnected blocks, where each such block carries information about the previous one. The database is stored on the computer of the participating systems, that is, it is decentralized, which also applies to the transactions that are carried out. That is why such a system is much more difficult to break, it is transparent and has reliable protection. Learn more about NFT Profit.

NFT and crypto art

The industry is actively developing, so for several years now you can observe the emergence of various startups that use blockchain tools to justify the authenticity of digital art. To transfer any kind of content to the blockchain, it must be “tokenized”. This is done in two ways:

  • Issuance of one token for one artistic masterpiece;
  • The division of a creative product into a number of tokens, which opens up  the possibility for its sale  in joint ownership.

With this opportunity, digital artists have an alternative way to sell their work. After all, now it’s not necessary to exhibit your work in the gallery, but you can independently “tokenize” the work on one of the cryptomarketplaces, determine its cost and wait for a potential buyer.

After purchasing an NFT object, the user is provided with a blockchain certificate stored in the digital wallet and confirms ownership of the object. At the same time, all participants in the system will have free access to information about ownership and its possible changes. And the work of art itself, regardless of the format, will continue to be on the Internet in the public domain.

How do crypto offers work in traffic arbitrage? 

The most popular offers in affiliate programs are crypto-trading and auto-trading. The main advertisers in this niche are online systems for making money quickly using cryptocurrencies and securities. Find out more with profit trader.

The conversion funnel is built as follows: 

  • The user gets to the landing;
  • The user leaves a request for a broker consultation;
  • The broker calls up a new client and conducts a consultation on cryptocurrency;
  • The broker helps the user understand the earnings system and insists on making a deposit;
  • The user makes a deposit;
  • The webmaster receives a payout depending on the size of the deposit and the payment model of the selected crypto offer.

When working with crypto offers, it is important to consider that making a deposit takes time. The user does not make such decisions spontaneously, therefore, when choosing an affiliate program, it is necessary to pay attention to the rating, the reputation of the affiliate program, the quality of work and the qualifications of brokers. 

Payment models for crypto offers 

In crypto, advertisers pay for leads. Most often, the CPA payment model (Cost Per Action) is used. The scheme of working with crypto offers according to the CPA model:

  • The user registers on the advertiser's website;
  • The user performs a target action: make a deposit, buy a coin, get advice from an experienced investor;
  • The webmaster receives a payout from each targeted user action.

Also on the market there are crypto offers with a payment model - CPL. The arbitrator is paid for registrations or applications (training in investing in cryptocurrency, consultation with a crypto expert). 

Another common payment model in crypto offers is the CPI model (Cost Per Install). CPI is the cost of installing, in this case, a crypto application or program, common among mobile services. 

Crypto vertical and traffic arbitrage 

The crypto offer vertical offers:

  • High payouts - the average check in the niche is about $750, however, payouts can exceed $1000 for each attracted client, depending on the selected GEO. 
  • A wide range of crypto offers and affiliate programs - webmasters who want to drive traffic to the crypt are becoming more and more every year. 
  • Low competition — many affiliates drive traffic to nutra, gambling and betting, conservatively not wanting to enter a new vertical. That is why there are few large experienced crypto teams in arbitrating traffic on the affiliate market. 
  • Some ad networks are not ready to advertise crypto offers, as the market is highly dependent on fluctuations in the value of popular cryptocurrencies and coins.  

Best Tips for Developing Progressive Web Apps

I. Focus on icons

A progressive web app must be developed containing icons designed in accordance with native app guidelines. Aesthetically, icon design should be minimalistic so that it can be easily deciphered. Learn more at

II. Improve loading time

A progressive web app should open instantly like a native app and shouldn't cause significant load times like a website. If slow internet networks are a concern for your page loading speed, apply the cache method first to the application development procedure, rather than the network approach. This way you will allow the minimum element to load in the application. Even a progressive web application framework designed by your team should optimize the amount of information displayed on application pages, images, login, etc.

A good strategy is to ensure that the page load time is less than 2 seconds, and even if the time taken to do so is slightly longer, keep drawing the user's attention to some fun element on the screen.

III. Implement PRPL pattern to improve performance      

The PRPL template structures and serves progressive web applications. According to Google's advice, it's best to implement the PRPL pattern if you want to improve the performance of your progressive web application. Using a template increases caching efficiency and creates a good first impression. This includes delivering critical resources, rendering initial routes and pre-caching the remaining routes, and even lazy loading the remaining elements in the application.

Intravenous Go to responsive content

A progressive web app should be as responsive as a native app, if not more so. As developers, you must ensure that all image tags on the page must include the image dimensions. This helps the browser position the screen correctly even before the image is loaded. Developers can also use placeholders while the content is loading into the app, which prepares the user for what should be displayed. Placeholders also help to minimize the “jumping image effect” that occurs due to inefficient resizing or improperly sizing images. It would also be nice if you could find a way to find out the user's command somehow. This can be done with simple steps like highlighting active tabs or even vibrating the device.

V. It is best to use system fonts

Don't be fooled into thinking that only fonts add the required character to your Progressive Web Apps. Use fonts only as a channel for delivering important messages and nothing more. Using a progressive web app is much more convenient if the style matches the style of the operating system it's running on. It is best to use the system font, depending on the operating system the user is using. Developers can do this by implementing different menus and buttons for each platform, minimizing visual distraction for the user.

VI. Be careful with extended touch interactions

Complex touch interactions like "swipe" or "drag to refresh" can be tricky to integrate into app design, even for the most experienced developers. Also be aware that limited screen space can lead to unwanted user behavior if the app design is crowded. However, once enabled, enhanced touch interactions will only steal the view if the designers ensure that they perform their intended functions smoothly and without failure. The key to creating a flawless Progressive Web App is that advanced touch interactions work well on real devices. If you run into any problem doing these advanced interactions, go back to the drawing board and redesign the app in such a way that 

VII. Smooth screen transitions

Often, network flaws slow down or even block screen transitions. When a user clicks on a link/button in a web application rendered on the server, the transition to the screen is slow, lightning fast, and may give the user the impression of being unresponsive. Developers must ensure that the Progressive Web Apps they develop exude the feel of a native app that runs locally and contains content that loads dynamically. We recommend using skeleton screens to guide users on what to expect and what to focus on. Implemented with technology, skeleton screens look identical to the app page and make it hard for the user to notice any differences.

VIII. Use Service Worker for caching

Service workers are scripts that your browser runs in the background when the page is not open. They are built into the design of your web application if you are going to install bright tooltips, push notifications, caching, etc. Check if your browser supports service workers, if yes register a service worker file. With the help of service workers, Progressive Web Apps can respond to user requests with lightning speed, even on dilapidated Internet connections.

IX. Allow ease of sharing

The Progressive Web App URL is not accessible to the user, so you must take steps to easily share the information presented on the screen. Integrate a share button so that the URL can be easily copied to the clipboard and distributed to it. If you are also integrating social media buttons, make sure you delay the loading of the third party Java script until the main content on the page has loaded.

X. Buttons and non-content must be unselectable

An avid Chrome user treats a single click on text as a selection. This results in a bug that recognizes button presses and other non-content as selections. This hinders the user experience that web application developers set out to create. To prevent this from happening, mark all elements with no content with a CSS property:

user choice: no;

XI. Need to keep scroll position on previous list page

Imagine a situation where the user selects an item for a particular list and proceeds to view its details. Here, pressing back should bring back the list page with the same scroll position they were in before the item was selected. It can be very annoying for the user to scroll through the list if pressing back always takes them to the top of the list.

What is Python and why learn it in 2021-2022

What is Python and why learn it in 2021-2022

The Python programming language is now at the peak of popularity. Let's understand the reasons for this trend, consider its applications and syntax. Many people will be interested to know what the salary of a Python developer is and what big companies use this language. Check programmers forum to find python community to more information about Python.

A brief excursus into the history of Python

Python's explosive popularity leads some to think it's some new programming language. But in fact Python was invented way back in 1991.


The creator and spiritual mentor of the programming language, the Dutch programmer Guido van Rossum, was originally known as the "generous lifetime dictator" (BDFL) of the project. He oversaw the development process and made final decisions when necessary. Guido left that position in 2018, returning to life as a regular developer.


Years of major versions of Python:


  • 1.0 - 1994 г.

  • 2.0 - 2000 г.

  • 3.0 - 2008 г.

In 1999, one of Python's developers, Tim Peters, wrote 19 "instructive principles" that reflected the philosophy and concept of the language - Python Zen. Even programmers far removed from Python project development have heard of this "collection of wisdom."


The first three principles of the language philosophy:


  • Beautiful is better than ugly.

  • Explicit is better than implicit.

  • Simple is better than complex.

Python Zen has been included in the official Python literature, PEP 20. Also, a list of mentoring principles is available as an "easter egg" in the language interpreter by the import this command.


Why this programming language is so popular

There is a TIOBE index that estimates the popularity of programming languages based on a count of the results of search queries containing their name. In its 2021 ranking, Python ranks third, behind C and Java. The popularity of the language, despite up and down jumps, has been growing steadily since 2004, with explosive growth since late 2017.


The reasons for the popularity of the language:


  • Simplicity. Python is universally recommended for learning as a first language. Moreover, it is studied by children in a number of schools not only abroad, but also in our country. Python is similar to a normal "human" language and is forgiving of mistakes. Simple syntax makes it much easier to write and analyze code.

  • Versatility. If you need to solve some task, most likely it can be done with Python. You just need to find the appropriate library or framework. The latter have been developed in huge numbers, and their number is constantly growing. It's easier to say what you can't do with Python.

  • Authoritative age. As one of the reasons for Python's steady growth in popularity without significant slippage, we can name the time of existence of this programming language. The project turns 40 years old in 2021. And this means that it is no longer dramatically slowed down, as, for example, the same Scala and Ruby in its time.

  • A large community of like-minded people. There is a 99% chance that the solution to your problem with Python is already described on the web - the answer will be on the first page of search engine results. And if you still can't find the solution, you can hope for a quick correct answer from users in one of numerous communities in Discord, Telegram, forums and so on.


Python structure and syntax, code examples

The first thing that catches your eye when you see Python code is the absence of curly braces and semicolons. A conditional Java programmer will be unaccustomed to using spaces alone to denote the body of functions, loop classes, and everything else. You will also notice many simplified constructs compared to many other languages.


It does not take much to display Hello world, just one line of code and one command:


Variables in Python don't need to declare a type - the interpreter does that automatically. Here's what a function in Python looks like that takes two arbitrary numbers as parameters and returns their sum:


Python itself is an object-oriented programming language. This means that everything in it is objects, instances of classes or metaclasses. Python effectively uses the principles of object-oriented OOP programming: encapsulation, inheritance and polymorphism.


This is what a typical Python class looks like:


In the example, the ElectricCar class inherits from the parent class Car. Note the widespread use of snake_case in function and variable names. This is another feature of Python.


Applications of Python

The main areas in which Python is used:


  • Backend in Web development. Relatively recently, the web language frameworks Django and Flask have become very popular. They are used to develop the server side of sites and web applications, that is, the code which runs on the server, not in the browsers of Internet users.

  • Big Data. Python offers powerful tools for analyzing and visualizing data. Thanks to a number of frameworks you can build detailed charts and graphs to find useful and interesting patterns in streams of any input data.

  • Machine learning. Using Python's special Machine Learning frameworks, developers write neural networks and algorithms for artificial intelligence. The language is extremely popular in this area because of its simplicity, flexibility, a large choice of libraries and frameworks.

  • Process Automation. Because of its simple syntax and lack of need for compilation Python is great for scripting everything. This could be email processing, file conversion, uploading content from photo and video sharing sites, etc.

  • The list of all the areas where Python is used is huge. In this programming language can be developed almost everything: parsers, bots for messengers, mobile applications, computer games, desktop programs, and so on. The only thing that limits you is the number and functionality of suitable libraries and frameworks. For example, even today's most powerful Python framework is not suitable as a basis for creating a AAA-class game like The Witcher or GTA.


Famous companies using Python

This language is successfully used by such industry giants:


  • Google. The corporation has used Python in development since its inception. Almost all of YouTube is written in it. Guido van Rossum himself worked for Google from 2005 to 2012.

  • Facebook. Python is responsible for several infrastructure management services for the world's largest social network.

  • Instagram. Originally, the server side of Instagram was written entirely in Django. Today the social network remains running on this framework, albeit with a number of innovations.

  • Dropbox. The company convinced Guido van Rossum to leave Google in 2012 to work with them. The website and client program of one of the most famous cloud file storage systems is written mostly in Python.

  • Spotify. The music streaming giant uses Python in the backend and for data analysis to provide users with suggestions and recommendations.

  • Netflix. The famous streaming monopoly wrote its recommendation service in Python from scratch. The programming language was also used in the development of a number of other systems, such as a central notification gateway, a content delivery network.

  • Reddit. One of the most visited sites in the U.S. was originally written in Lisp, but six months after its launch, the owners decided to rewrite it in Python.

  • Uber. The founders of the company chose between Ruby and Python, and settled on the latter. The service's backend is written in Python. Uber also uses this programming language for asynchronous programming, supply and demand forecasting and data analytics.

  • JPMorgan Chase. The large American financial holding company makes market forecasts with the help of Python.

  • This is not a complete list of famous companies that use Python. We can mention Yahoo,, Yandex, Quora, Amazon, Autodesk, Walt Disney. It's also worth noting that Python is even used by NASA for scientific calculations.

Why is Python popular?

Nowadays, when the computing power of personal computers and servers has become high enough, there is a huge demand for interpreted programming languages. After all, in addition to running the program itself, you need to run the interpreter, which requires additional resources. Due to a python forum, Python is exactly such a language.


The popularity of Python is due to the fact that this language is able to solve a wide range of problems and its use is possible on all popular platforms today, except for the mobile segment, which is tightly entrenched specific languages. In recent years, Python has gained its popularity due to its effectiveness in such areas of development as Machine Learning and Data Science because of its extensibility and flexibility, which is so necessary in this segment of programming. At the same time Python is widely used in the WEB, in which this language feels great since the early 2000s and to this day develops and improves this direction. That's why learning Python online course is so popular.


Let's take a closer look at all the advantages and disadvantages of this language.



  • Flexibility - this is, in my opinion, the main advantage of the language, because of its flexibility language has gained popularity among many developers. As one of my friends said when I started learning the language: "With Python, you can disassemble and reassemble everything at any time". And he was right.

  • Extensibility - one of the language's slogans is - Just Import! - which fully explains how extensible the language is and has been over the years. There are libraries and frameworks for every type of task and need. Also a huge plus is that we can use C code from Python.

  • Simplicity of syntax. The syntax is exactly what made me fall in love with Python - everything unnecessary was removed from the syntax, the code is clean and clear without unnecessary brackets and expressions.

  • Interpretability. The Python interpreter exists for all popular platforms and is included by default in most Linux distributions, which means it is available on most servers "out of the box".

  • PEP is a common standard for writing code, which makes the code maintainable and readable even when you move from one programmer to another. This keeps Python popular.

  • Open Source - Python interpreter code is open source, allowing anyone interested in developing the language to participate in its development and improve it. If you look at the release details of one version of the language, you'll notice that huge portions of the new functionality are implemented by third-party developers.

  • Community - around Python formed a fairly friendly and pleasant community that is ready to help any novice or already able to figure out his problem.

All these advantages of the language have made it popular and in demand at the moment, allowing Python to develop at a huge pace. There is already a third version of the language, which is the mainstream today. The second version of the language stopped being supported in December 2019.


But despite all the obvious advantages, Python also has a number of disadvantages, which, in my opinion, are more than offset by its advantages.



  • Performance. Most developers, and the creator of the language himself, agree that Python is not as fast as we would like it to be. This is due to the fact that Python is an interpreted language. But even compared to other interpreted languages, it is noticeable that Python loses out in performance. But this can easily be mitigated with C implementations of this or that problematic part of the code. In today's power environment, it's not very noticeable.

  • Syntax - yes, in my opinion syntax is a minus as well because if you're switching from another programming language the syntax will be unusual and a bit weird for you but that's just a matter of getting used to it.

  • Dynamic typing - Because of dynamic typing Python uses more resources than it should, but this is often made up for with internal caching.

  • Global Interpriter Lock. This is currently the main performance problem in Python, and is also responsible for the poor implementation of multithreading. The GIL code has not changed since the first version of the language. This clearly indicates that it is obsolete. We can only hope that the developers pay attention to this in upcoming releases.


Now you know who and when Python was created and that its popularity is due to its simplicity, versatility, time of existence, and large community. It is mostly used for backend in web development, Big Data, machine learning, and process automation. Major companies that use Python include Google, Facebook, Instagram, Spotify, Dropbox, and others.