Blog
Development, infrastructure, SEO, AI and IT for business — short and to the point.
1495 articles
- Databases & data4 min
Elasticsearch Analyzers for Russian and Uzbek Search
Index each product name twice — once with a Russian analyzer (stemming, synonyms) and once through a Cyrillic-to-Latin transliteration analyzer — then query both with fuzziness so that “non”, “нон” and “nonn” all find bread.
Practice - Hosting & cloud4 min
Cloudflare R2 vs AWS S3: Storage Costs and Egress Fees
The key difference is that R2 charges nothing for egress, while S3 bills every gigabyte served to the internet. R2 wins for files users download often; S3 wins for data processed inside AWS or kept in low-cost archive tiers.
Practice - IT careers4 min
Engineering Career Ladder: How to Build Levels for Your Team
An engineering ladder is a small set of levels described by observable expectations across a few competency areas; it works only when promotions and pay bands follow it consistently and the team understands how to use it.
Advanced - Tools & no-code4 min
Pivot Tables in Excel and Google Sheets: Step-by-Step
A pivot table groups and totals data in a few clicks without formulas, but it only stays reliable on a clean source: one header row, one record per row and correct data types in every column.
Practice - IT by industry4 min
Clinic Website Checklist: What Patients and Google Expect
A clinic website needs pages for doctors, services with prices, licenses, reviews and simple online booking; trust comes from verifiable facts about doctors and the clinic, while local SEO, quality medical content and a fast mobile version drive search visibility.
Practice - Networks & office IT4 min
Weak Wi-Fi in the Office: How to Find and Fix Dead Zones
Map the signal with a heatmap survey, then fix dead zones by moving access points to the ceiling near users, tuning channels and transmit power, and adding cabled access points instead of repeaters where coverage is still weak.
Practice - IT for business3 min
Fixed Price vs Time and Materials: Choosing a Contract Model
Fixed Price fits when the scope is clear and locked in advance; Time and Materials fits when requirements will evolve during the project and flexibility matters.
Basics - Web development4 min
Critical Rendering Path: How the Browser Draws a Page
The Critical Rendering Path is the chain of steps from receiving HTML to the first pixels on screen; the fewer blocking CSS and JS files at its start, the sooner users see the page.
Advanced - SEO3 min
E-commerce SEO: Optimizing Category and Product Pages
Target broad queries with categories and specific models with product pages; control filter indexing, write your own descriptions, keep temporarily unavailable items live and add Product markup with reviews.
Practice - DevOps3 min
Common DevOps Mistakes Small Teams Make and How to Avoid Them
Small teams rarely suffer from a lack of advanced tools; they suffer from manual deploys, missing monitoring, untested backups and hand-built servers. Each of these can be fixed with simple, inexpensive practices.
Basics - AI & automation4 min
AI Product Descriptions for Uzum and Other Marketplaces
The reliable setup is a structured spec sheet and photos as input, an LLM writing to a strict template using only that data, code checking facts and platform rules, and a human reviewing samples before upload.
Practice - Programming4 min
How to Write Good Commit Messages: Conventional Commits
A good commit says what changed and why in one short line; Conventional Commits adds a type like feat or fix, and tools use those types to compute the next version and write the changelog.
Practice - Mobile development4 min
Crash Reporting for Mobile Apps: Crashlytics vs Sentry
Crashlytics is the free, fast option if you already use Firebase; Sentry is stronger for errors, performance and self-hosting but more complex and paid at volume. Either way, crash reports are unreadable without uploaded dSYM and mapping files.
Practice - Marketing & analytics4 min
How to Debug Analytics Tracking: GTM Preview and GA4 DebugView
Check each event along the chain: does the tag fire in GTM Preview, does the event reach GA4 DebugView or the pixel, and only then look at reports; duplicates almost always mean two sources for one event.
Practice - Design & UX5 min
Dashboard UI Design: Making Complex Data Readable
A readable dashboard starts with the question it answers, not with charts: 3–5 key metrics at the top, details below, chart types matched to comparison or trend, and tables and filters for people who need to act.
Advanced - Telegram & messengers4 min
How the Telegram Bot API Works: Updates, Methods and Tokens
The Bot API is an HTTP interface: your code calls methods at api.telegram.org using the bot token and gets JSON back, while incoming events arrive as Update objects via getUpdates or a webhook.
Basics - E-commerce & CRM4 min
CommerceML and the 1C Exchange Protocol Explained
1C calls your site over HTTP (checkauth, init, file, import), sends the catalog in import.xml, prices and stock in offers.xml, and pulls orders via mode=query; most failures come from auth, upload limits and mismatched IDs.
Advanced - Security4 min
Docker Container Security: Best Practices for Production
A secure container runs as a non-root user from a minimal, scanned image, holds no secrets in its layers, has dropped capabilities and resource limits, and nobody outside the host can reach the Docker socket.
Practice - Databases & data3 min
ETL vs ELT: How Data Pipelines Work
ETL transforms data first and then loads it into the warehouse, while ELT loads raw data first and transforms it inside the warehouse. Cloud warehouses usually favor ELT because their compute is cheap to scale.
Basics - Hosting & cloud4 min
How to Put Your Website Behind Cloudflare Step by Step
Add the domain to Cloudflare, check the imported DNS records, switch nameservers at your registrar and use the Full (strict) SSL mode to get CDN and protection without breaking anything. Most outages come from Flexible SSL, missing DNS records and DNSSEC left enabled.
Practice - IT careers3 min
How Much English Do You Need for an IT Career
Almost everyone in IT needs to read technical documentation in English from day one, while fluent speaking becomes essential once you join an international team or interview abroad.
Basics - Tools & no-code4 min
Power Query in Excel: Automate Data Cleaning
Power Query records every cleaning step you do once (import, trim, retype, merge, append) and replays it on new data, so a report that took an hour of copy-paste refreshes with one click.
Advanced - IT by industry4 min
Cloud Kitchen: Technology for a Delivery-Only Restaurant
A dark kitchen is a kitchen with no dining room that sells only through delivery; it needs an order aggregator for all channels, a kitchen display system (KDS), multi-brand menu management, courier integration and demand analytics.
Basics - Networks & office IT3 min
GLPI vs Snipe-IT vs Spreadsheets: Tools for IT Inventory
A spreadsheet is enough for a small office with a stable fleet, Snipe-IT is great for tracking which employee has which device, and GLPI fits when you need agent-based automatic inventory plus a built-in helpdesk.
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