Blog
Development, infrastructure, SEO, AI and IT for business — short and to the point.
1495 articles
- IT for business4 min
Agile Explained for Clients: What Changes for You
With Agile you get a working product in small pieces and can change priorities along the way, but you must take part regularly: attend demos and make decisions.
Basics - Web development4 min
How to Add a Map to a Website: Google Maps, Yandex Maps, Leaflet
For a single "how to find us" pin, an iframe embed is enough; for many markers and custom logic use a JS API or Leaflet, and load the map lazily only when the visitor scrolls to it.
Practice - SEO4 min
301 vs 302 Redirects: Differences and SEO Impact
A 301 tells search engines a page has moved for good and the old URL should be replaced in the index, while a 302 says the move is temporary and the old URL should be kept; for changed addresses you almost always need a 301.
Basics - DevOps3 min
Alerting Best Practices: How to Avoid Alert Fatigue
Page a human only when users are hurting or about to, and action is required; send everything else to tickets or dashboards, and prune noisy alerts regularly.
Advanced - AI & automation4 min
AI Assistant for Instagram Direct: Automating Customer DMs
An AI assistant connects to Instagram DMs through Meta's official Instagram API and webhooks: it answers routine questions from live catalog data, hands complex chats to a manager and saves leads to your CRM while respecting the reply window and platform rules.
Practice - Programming4 min
How to Add Tests to Legacy Code: Characterization Tests and Seams
First lock in current behaviour with characterization or snapshot tests, then use seams to cut off the database, network and clock, and only then change code in small verified steps.
Advanced - Mobile development4 min
Alternative App Stores: Huawei AppGallery, RuStore and Others
Publishing outside Google Play pays off when a noticeable share of your users are on Huawei devices without Google services or in Russia; it requires separate builds that swap push, payments, maps and sign-in for each platform's equivalents.
Basics - Marketing & analytics4 min
A/B Test Statistics: Significance, Sample Size and Peeking
A reliable A/B test is planned up front: you pick a primary metric and the smallest effect worth detecting, then calculate sample size from them. The test then runs to that size without stopping at the first "significant" result; otherwise false wins become far more common than the significance level promises.
Advanced - Design & UX4 min
8-Point Grid: How to Build a Spacing System in UI Design
The 8pt grid is a rule that every spacing value and size is a multiple of 8 (sometimes 4): it creates a steady rhythm, speeds up design decisions and becomes a short set of tokens in code.
Basics - Telegram & messengers4 min
How to Accept Telegram Stars in a Bot or Mini App
The bot issues an invoice in XTR with no payment provider, approves the pre_checkout_query and delivers the goods only after successful_payment, storing telegram_payment_charge_id for idempotency and refunds via refundStarPayment.
Practice - E-commerce & CRM4 min
How to Integrate 1C With an Online Store: Products, Stock, Orders
1C stays the master system for products, prices and stock while the store sends orders back; the exchange runs on a schedule or events and every step is logged and checked.
Practice - Security4 min
The 3-2-1 Backup Rule: What It Is and How to Apply It
Keep three copies of your data on two different types of storage, with one copy in another location, and make at least one copy immutable or offline so it cannot be deleted or encrypted.
Basics - Databases & data4 min
Database Transactions and ACID Explained Simply
A transaction groups several database operations into one all-or-nothing unit; ACID means it either fully happens or not at all (atomicity), keeps data valid (consistency), does not get confused by parallel transactions (isolation) and survives a crash once committed (durability).
Basics - Hosting & cloud4 min
AWS EC2 vs Lightsail: Which to Choose for a Small Project
Lightsail is a simple AWS VPS with a fixed price for a bundle of resources and traffic, a good fit for websites and small apps; EC2 offers flexibility, auto scaling and full AWS networking but needs setup and attention to billing. You can start on Lightsail and export the server to EC2 later.
Practice - IT careers4 min
Are IT Certifications Worth It? AWS, Google, Microsoft and Others
Certifications clearly help in cloud, cybersecurity and project management, especially with large companies and vendor partners; in product development and early in a career, a portfolio and experience usually matter more.
Basics - Tools & no-code4 min
Airtable vs Google Sheets: Spreadsheet or Database
Google Sheets is a flexible spreadsheet for calculations and quick analysis, Airtable is a simple database with typed fields, linked records and views; choose Airtable when your data has entities that reference each other and several people work with it every day.
Basics - IT by industry4 min
3D Virtual Tours for Real Estate: How They Help Sell
A 3D tour lets buyers walk through a property online and arrive at a viewing already interested; finished properties are captured with a camera, while off-plan projects use tours built from renders.
Basics - Networks & office IT4 min
Asterisk and FreePBX for a Small Office: Setup and Pitfalls
FreePBX on Asterisk gives an office a flexible phone system with no per-user fees, but it needs an admin, correct NAT settings and strict protection against SIP attacks; without an admin, a cloud PBX is the safer choice.
Advanced - IT for business4 min
How Much Does App Development Cost and What Drives the Price
An app's price is the team's hours times their rate, and the hours depend on feature scope, number of platforms, design and integration complexity, and who does the work. The most reliable way to cut the budget is to shrink the first version, not the rate.
Practice - Web development4 min
ARIA Attributes Guide: When and How to Use Them
ARIA tells assistive technologies an element's role, name and state but adds no behavior; use it only where no suitable native HTML element exists.
Practice - SEO3 min
Does Google Penalize AI-Generated Content
Google does not penalize content just for being AI-written — it judges usefulness, but mass-producing pages to manipulate rankings violates its spam policies. Yandex also filters low-value text, so AI works as a tool, not a replacement for expertise.
Basics - DevOps3 min
How to Automate Server Setup with an Ansible Playbook
Ansible brings servers over SSH to a state described in YAML: the inventory lists hosts, the playbook lists tasks, templates generate configs, handlers restart services only on change, and roles make it all reusable.
Practice - AI & automation4 min
AI Chatbot for Customer Support: How to Implement It Right
A good AI support bot answers only from a verified knowledge base, hands complex questions to a human without friction and is rolled out in phases, measuring deflection rate and CSAT at every step.
Practice - Programming4 min
Big O Notation Explained: Time and Space Complexity
Big O describes how the running time or memory of code grows as the input size n grows, ignoring constants, so you can tell in advance whether a function will stay fast on large data.
Basics
Have an idea or a task? Tell us about it
We'll reply within one business day and propose a solution. The consultation is free.