Blog
Notes on data analytics, web development, Telegram bots, and automation.
Is Web Scraping Legal in 2026? Rules by Method and Data Type
Scraping law depends on method and data type: public pages or behind a login, facts or personal data. Three documents decide: law, terms, robots.txt.
Amazon Scraping: What the Rules Actually Allow
Amazon's robots.txt leaves product pages open to crawlers while its Conditions of Use ban data mining tools. Here is what each rule covers in practice.
Etsy Fee Calculator Extension for Chrome
This Chrome extension puts the full 2026 Etsy fee breakdown, tariff line included, under the price of any listing. One permission, zero network calls.
Etsy Fee Calculator: How to Compute Your Real 2026 Profit
An honest Etsy fee calculator counts six lines in 2026: transaction, processing, listing, Offsite Ads, the DDP tariff charge, and Etsy's 15% fee on it.
Etsy Tariffs in 2026: What Sellers and Buyers Pay
Etsy tariffs in 2026: since July 9, US orders ship DDP, the tariff is baked into the item price, and Etsy takes 15% of the tariff money. Here is the math.
Missed call text back: how it works and what it costs
Missed call text back is an automation that texts a caller within seconds after nobody picks up. How it works, the US carrier rules, and 2026 pricing.
Etsy Fees in 2026: How Much the Platform Takes
Etsy fees in 2026: the 6.5% transaction fee, processing, listing, Offsite Ads, and the 15% fee on the DDP tariff charge, with a worked $30 example.
Migrating a Telegram bot to MAX in 2026: what changes
Porting a Telegram bot to MAX in 2026: logic and CRM hooks move over whole, only the Bot API layer and payments get rebuilt. The code takes days.
How to make product cards for Wildberries and Ozon
How to build a marketplace product card for Wildberries, Ozon, and Yandex.Market: cover photo, infographic, title, description, and specs. Step by step.
What I write about: Etsy fees, scraping, Telegram bots
The ten pages search sends the most people to: Etsy fees and tariffs in 2026, what the scraping rules allow, and the free calculators that go with them.