TSN.UA (stylised as TCH.ua) is a news website owned and operated by 1+1 Internet, LLC, subsidiary and division of 1+1 Media Group as the online arm of TSN.

[5] On March 16, 2020, it was announced that TCH.ua together with the 1+1 Digital development team updated the site's mobile application for the Android operating system.

[6] On March 23, 2022 at 2:00 p.m. on the main page of TCH.ua in connection with the Russian invasion of Ukraine, a link to the news section about the war from the editors of TSN in English, which is located on tsn.ua/en and is updated to this day, appeared.

By dividing the monolithic architecture into microservices Ideil separated independent parts from the core, which served most media projects.

Simultaneously supporting TSN, Ideil started working on a new website version using Laravel and vue.js, which was still ß at the time.

During the testing phase, when the editors worked with the old admin panel, the content appeared both on the old and the new site, which was still under development at the time.

The old API caused slow app operation, so Ideil refactored it completely: changed approaches and interactions.

By the end of August, we needed to "tune in" the existing website version in accordance with the updated TV program style in order to prepare readers for a full-scale redesign.

Ideil team redesigned everything according to the new guide, repblished the homepage: rearranged the grid and put the image form factors into an adequate shape, added more air, left the dark integrators behind and fixed the typography.

The team of news resource group 1+1 media TCH.ua updated the visual style of the site, technical characteristics and approach to working with content.

New sections have appeared on the main page of the site: "Trends" — the most popular news according to readers, "Spetstem" — materials on current topics that define our lives today and in the future.

In addition, special attention to the resource is paid to video content: it was brought to a separate top column, which is always located on the home page.

The editors of the site apologized to readers and former deputy head of the Odessa Regional State Administration Oleksandr Borovik for an incorrect headline to the news about his sexual orientation.

According to research data published by Kantar TNS CMeter, about 3.5 million unique visitors learned news from TCH.ua every month.

According to the Gemius Audience final report, every fifth user of Internet services in Ukraine read news on TCH.ua in 2018.

[16] In May 2019, TCH.ua broke its own historical record — the site's share exceeded 26% of the Ukrainian Internet audience, and the number of unique visitors was 6.5 million.

[23] TCH.ua covers national and international news of general interest, using original and wire service reporting, as well as videos from the network's television division.