Blog
Development, infrastructure, SEO, AI and IT for business — short and to the point.
1495 articles
- Web development3 min
What Is CSS: Selectors, Cascade and Specificity Explained
CSS is the styling language: a selector picks elements, a rule sets styles, and in a conflict the declaration with higher specificity wins or, if equal, the one that comes last.
Basics - SEO4 min
How to Update Old Content to Regain Rankings
Find pages with falling impressions and clicks, identify the cause, then rewrite for the current intent, merge duplicates with a 301 or remove useless pages — simply changing the date will not bring rankings back.
Practice - DevOps3 min
What Is Docker and Why Developers Use Containers
Docker packages an application with all its dependencies into an image, which runs as an isolated container. That is why the same code behaves identically on a laptop, in CI and on a server.
Basics - AI & automation4 min
What Are Computer-Use Agents: AI That Operates a Browser
A computer-use agent is a language model that looks at screenshots and decides where to click and what to type; it helps where no API exists, but it is slower and less reliable than an integration and needs strict access limits.
Basics - Programming3 min
What Is C# and .NET: Overview for Beginners
C# is a programming language and .NET is the platform that compiles and runs C# code; today it runs on Windows, Linux and macOS and is used for web, desktop, games and enterprise systems.
Basics - Marketing & analytics4 min
How to Set Up Yandex Direct Ads: A Beginner's Guide
Create a Yandex Direct account, install Yandex Metrica with goals, launch a Unified Performance Campaign optimized for conversions, and split search and network ads once you need more control over bids and placements.
Practice - IT by industry4 min
How to Sell Insurance Policies Online: Process and Systems
Selling a policy online is a short funnel of quote, data, payment and policy by email, backed by a rating engine, data checks, a payment gateway, the insurer's core system and a partner API.
Practice - IT for business4 min
What a Business Analyst Does in a Software Project
A business analyst translates business problems into requirements developers can build from: they find out what is needed and why, map the processes and make sure the team builds what actually solves the problem.
Basics - Web development3 min
What Is the DOM and How JavaScript Changes a Page
The DOM is a live tree of objects the browser builds from HTML; JavaScript finds nodes in it, changes them and reacts to events, and the browser redraws the page right away.
Basics - SEO3 min
SEO for Uzbek Content: Latin vs Cyrillic Script
Make Latin-script Uzbek your main version — it is the official alphabet. Add a Cyrillic version only if your audience really searches in Cyrillic, as a separate page with hreflang uz-Cyrl.
Practice - DevOps4 min
What Is Infrastructure as Code and Why It Matters
Infrastructure as Code means describing servers, networks and services in text files that live in Git and are applied automatically, which makes infrastructure reproducible, reviewable and self-documenting.
Basics - AI & automation3 min
What Are Embeddings and How Machines Understand Meaning
An embedding is a vector, a numeric representation of text or an image in which items with similar meaning sit close together; it powers smart search, recommendations and clustering.
Basics - Programming4 min
What Is Functional Programming? Core Ideas for Beginners
Functional programming builds programs from small functions that take data and return new data, passing functions around like values. You describe what to compute, not how to loop step by step.
Basics - Marketing & analytics4 min
How to Set Up Goals in Yandex Metrica
A goal in Metrica is a visitor action you count as a result: a lead, a call, a jump to a messenger. Create goals in the tag settings, verify them with debug mode and mark the important ones as key goals so Yandex Direct can optimize ads for conversions.
Practice - IT by industry3 min
Should a Gym Have Its Own App: Features and Alternatives
An own app pays off when a gym has unique scenarios and members willing to install it; for booking, payments and QR entry most gyms are well served by a white-label app or a Telegram Mini App, which launch faster and need no installation.
Basics - IT for business3 min
What Is Business Process Automation: Types and Examples
Business process automation hands the repetitive steps of work to software: requests, documents and data move between people and systems on their own, following set rules.
Basics - Web development3 min
What Is GraphQL and How It Works
GraphQL is an API query language where the client describes exactly which fields it needs and gets them in one request through a single endpoint, while the server defines available data in a strictly typed schema.
Basics - SEO3 min
What Are Backlinks and Why They Matter for SEO
A backlink is a link to your site from another site, and search engines treat it as a sign of trust. A link's value comes from relevance, the source's authority and its placement — not from sheer quantity.
Basics - DevOps4 min
What Is Kubernetes and When Does Your Project Need It
Kubernetes is a system that starts, restarts, scales and updates containers across a group of servers for you. It pays off with many services, several servers and uptime requirements; a small project usually does fine with Docker Compose or a PaaS.
Basics - AI & automation3 min
What Are Reasoning Models and When to Use Them
Reasoning models think before answering: they generate a chain of intermediate steps and spend extra compute on it. That clearly helps with math, code, analysis and multi-step tasks, but makes answers slower and costlier, so simple tasks do not need them.
Basics - Programming4 min
What Is Git and How Version Control Works
Git is a version control system that records your code history as snapshots called commits, lets you work in branches and safely combines the work of several people.
Basics - Marketing & analytics4 min
How to Run YouTube Ads: Video Campaign Formats and Setup
YouTube ads run through Google Ads. Pick a goal (reach, views or conversions), a matching format and an audience, make a video that hooks viewers in the first five seconds, and measure results including conversions after views.
Practice - IT by industry4 min
Smart Irrigation: IoT Soil Sensors and Automated Watering
Smart irrigation waters based on actual soil moisture and the weather forecast rather than a fixed schedule: sensors send data, a controller opens valves, and flow metering shows real savings.
Practice - IT for business4 min
What Is a Change Request and How Extra Work Is Paid
A change request is a formal request to modify the agreed scope: it is described, estimated in time and money, approved in writing, and only then delivered and billed separately.
Basics
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