Blog
Development, infrastructure, SEO, AI and IT for business — short and to the point.
1495 articles
- IT by industry4 min
Real Estate Listing Website: Must-Have Features
A real estate listing website needs fast filters and map search, good galleries, a mortgage calculator, clear agent contacts, moderation against fake listings and SEO-ready property pages; everything else can come later.
Basics - IT for business3 min
Product Launch Checklist for Business Owners
Before launch, make sure not only the code is ready but the business around it: legal pages, support processes, analytics, trained staff, tested payments and a rollback plan in case something breaks.
Practice - Web development4 min
Tailwind CSS vs Bootstrap: Which CSS Framework to Choose
Bootstrap gives you ready-made components and a fast start, but sites built on it look alike without serious rework. Tailwind CSS gives you utilities to build your own design and usually wins when you have a custom layout and a design system.
Practice - SEO3 min
Website Migration Without Losing SEO Traffic: Checklist
Traffic survives when every old URL leads with a single 301 redirect to its exact equivalent, metadata and content move over intact, and you monitor indexing and errors daily after launch.
Advanced - DevOps3 min
How to Speed Up CI Pipelines: Caching, Parallelism and More
First measure which steps take the time, then cache dependencies, split work into parallel jobs, run only affected tests and shrink your Docker images.
Practice - AI & automation3 min
How to Run an LLM Locally With Ollama
Install Ollama, pull a model that fits your memory and call it through the local API on port 11434; local models are great for private and simple tasks but trail large cloud models.
Practice - Programming3 min
Static vs Dynamic Typing: Pros, Cons and Examples
Static typing checks types before the program runs, dynamic typing checks them at runtime; strong versus weak is a separate question about implicit conversions, and gradual typing (TypeScript, Python type hints) lets you combine the best of both.
Basics - Mobile development3 min
What Is Flutter and How Does It Work
Flutter is Google's framework for building iOS, Android and other apps from one Dart codebase. It draws the entire UI with its own engine, so the app looks the same everywhere.
Basics - Marketing & analytics4 min
What Is Digital Marketing: Channels, Tools and How It Works
Digital marketing is promoting a business through online channels such as search, social networks, email, content and messengers, where every step from first contact to purchase can be measured and improved.
Basics - Design & UX4 min
Wireframe vs Mockup vs Prototype: Key Differences
A wireframe is a gray structural sketch of a screen, a mockup is the same screen in final visual design, and a prototype is a clickable version that simulates how the product works. They answer different questions: what goes where, how it looks and how it behaves.
Basics - E-commerce & CRM4 min
What Is a CDP and How It Differs From a CRM
A CDP automatically merges customer behavior from every channel into one profile and feeds it to other tools, while a CRM is where staff manage deals and conversations. You need a CDP when you have many channels and scattered customer data.
Basics - Security4 min
SSRF Attacks: How Server-Side Request Forgery Works
SSRF is a flaw where an attacker makes your server send a request to an address of their choosing, such as the internal network or the cloud metadata service. Defend in layers: URL allowlists, IP checks after DNS resolution, isolated egress and IMDSv2.
Advanced - Databases & data4 min
Zero-Downtime Database Schema Changes: Expand and Contract
Never change a live schema in one breaking step: first expand (add new structures that work alongside the old ones), migrate data and code gradually, then contract (remove the old parts) once nothing uses them.
Advanced - IT careers3 min
Who Is a UI/UX Designer: Responsibilities and How to Start
A UI/UX designer shapes how a product works for the user (UX) and how it looks (UI), from user flows and prototypes to ready-to-build mockups. To start, you need interface design fundamentals, solid Figma skills and a portfolio that explains 2–3 problems rather than a gallery of pretty screens.
Basics - Tools & no-code4 min
What Is ClickUp and Which Teams It Suits
ClickUp is an all-in-one work management platform that combines tasks, docs, goals and automations in one workspace; it suits teams with several departments or complex processes, while small teams with simple needs are often better off with a lighter tracker.
Basics - IT by industry4 min
How to Give Customers Real-Time Delivery Tracking
Customers need three things: timely status notifications, a link to a page showing the courier on a map and an honest, updating arrival time. Data comes from the courier app or GPS, and it reaches customers via SMS, Telegram and a tracking page.
Practice - IT for business3 min
How to Calculate the ROI of a Software Project
ROI = (benefit − cost) / cost × 100%, where benefit is savings plus extra profit over a chosen period and cost is the total cost of ownership including support; the payback period shows when accumulated benefit covers the investment.
Practice - Web development4 min
TanStack Query vs SWR: Managing Server State in React
Both libraries cache server data and refresh it automatically; SWR is lighter and simpler for read-heavy apps, while TanStack Query gives more control over mutations, invalidation and debugging in large apps.
Practice - SEO4 min
SEO A/B Testing: How to Run Split Tests on Page Groups
An SEO test splits similar pages into control and variant groups, changes only the variant and compares both groups' organic traffic against a forecast to separate the change's effect from seasonality and updates.
Advanced - DevOps3 min
SLI, SLO and Error Budgets: SRE Reliability Basics in Practice
An SLI is a measurable indicator of service quality, an SLO is the target for it, and the error budget is the allowed share of failures a team can spend on releases and experiments.
Advanced - AI & automation3 min
Sales Call Analytics With AI: Transcription, Scoring, Insights
Calls are pulled from the PBX, transcribed by ASR, scored by an LLM against a checklist with objections extracted as JSON, and the result is written to the CRM deal, so the sales lead sees every conversation instead of a random sample.
Practice - Programming4 min
Swift Language Basics: Syntax, Optionals and Structs
Start Swift with five things: let/var, optionals with safe unwrapping, the difference between struct (value) and class (reference), enums and closures — almost all iOS code is built on them.
Basics - Mobile development3 min
What Is Jetpack Compose and Why Android Moved to It
Jetpack Compose is Android's modern declarative UI toolkit in Kotlin: you describe how a screen looks for a given state, and the system redraws only the parts that changed.
Basics - Marketing & analytics4 min
What Is Email Marketing and When It Still Works
Email marketing is ongoing communication with people who agreed to receive your emails. It works when messages are timely and relevant: order confirmations, triggers based on user behavior and useful newsletters to a list you own.
Basics
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