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Blazity

Blazity

Software Development

Warsaw, Mazowieckie 2,100 followers

We help organizations architect, optimize, and deploy high-performance Next.js and React applications at scale.

About us

We're team of Next.js and React experts helping companies transform their vision into successful digital products. From custom product and web development to migrating legacy systems to modern and efficient headless architecture, we take care of the technical complexities, so your team can focus on what you do best.

Website
https://blazity.com
Industry
Software Development
Company size
11-50 employees
Headquarters
Warsaw, Mazowieckie
Type
Privately Held
Founded
2018
Specialties
Web Development, HeadlessCMS, Jamstack, Mobile apps, Next.js, and Vercel

Locations

Employees at Blazity

Updates

  • "You don't need to reinvent orchestration to ship production-ready AI agents." Dom Sipowicz (Solutions Architect at Vercel) dropped this at our Frontend Forward London Meetup — and then showed exactly how. His talk covers what it actually takes to ship reliable agent systems using the Vercel AI Cloud and the new Workflow Development Kit: → How teams are shipping production-ready AI agents today → The architecture decisions behind reliable agent systems → Using Vercel's AI Cloud and Workflow Development Kit → Why most teams overcomplicate orchestration This was one of those talks where the room got noticeably quieter — everyone was taking notes. Whether you're exploring AI agents for your product or evaluating the architecture behind them, this is 23 minutes well spent. Watch the full talk: https://lnkd.in/dMnWFMpi

  • Your site's performance isn't a technical detail — it's the foundation of your revenue engine. Jakub Jabłoński, our principal software engineer, makes the case that web performance directly drives business outcomes, walking through Black Friday failures, the gap between Lighthouse scores and real user data, and the dynamic pages causing most of your performance problems. Recorded live at the Blazity London Meetup, February 2026. https://lnkd.in/d9xFRcQz

  • Most Next.js migrations from Pages Router to App Router follow the same pattern: a developer reads the docs, starts converting files, breaks something in production, then spends weeks firefighting. The real problem with migration are the edge cases nobody warns you about, and the lack of systematic approach. We’ve done enough of migrations to confidently say - we’ve been there and done that. So we built Skills.md - an agent-oriented migration toolkit that gives AI coding agents (and developers) a structured, production-safe path from Pages Router to App Router. Instead of guesswork and broken deploys you get a repeatable process built from real migration experience. It's open source and built for Skills.sh.

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  • Your Lighthouse scores are green. Your Core Web Vitals in the field are failing. And nobody notices until revenue drops. This is the silent cost of optimizing the wrong metrics. While dashboards show favorable lab data, real users are leaving. Marketing keeps adding scripts. Developers can't ship fast enough. SEO quietly declines. By the time alarms go off, the damage is already done. We wrote a whitepaper on how to stop the silent drain — and tie performance to business outcomes, not optics. Watch the quick breakdown, then grab the full guide below.

  • We open-sourced our Core Web Vitals monitoring stack. next-cwv-monitor: → Lightweight client SDK (App Router + Pages Router) → ClickHouse-powered analytics backend → Real-time monitoring dashboard → Docker-ready deployment → MIT licensed Collect real user LCP, INP, CLS, TTFB, FID per route. Self-hosted — your data never leaves your infrastructure. Built from experience monitoring enterprise Next.js apps. Now available on GitHub.

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  • Your performance dashboard says green. Your revenue says otherwise. Most enterprises measure Lighthouse scores. Google ranks you on field data. The gap between what you think your performance is and what real users experience is typically 30–50%. That gap compounds silently — in lower conversion rates, declining organic rankings, and marketing spend that converts worse every quarter. You're paying more for the same traffic and getting less from it. We wrote a whitepaper that maps the connection between frontend performance and revenue loss, with data from ecommerce, SaaS, and media companies. It includes the diagnostic framework we use with enterprise clients. Download it below.

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  • 2 spots left for our Next.js meetup in London.                                                            Three talks — AI agents in production (Dom Sipowicz, Vercel), performance as a revenue lever (Jakub Jabłoński, Blazity), and what broke cookie banners (Christopher Burns, c15t). Plus: Blazity is premiering "The Revenue Cost of Slow" — our whitepaper connecting frontend performance to conversion rates and revenue. Attendees get first access. 📍 Nags Head, Covent Garden. Register here: https://lnkd.in/dAMK6EJa

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  • Three talks. One theme: the stuff that actually moves the needle.                                                  Dom Sipowicz (Vercel) on shipping AI agents — what works, what doesn't, and what most teams get wrong.                                                                      Christopher Burns (c15t) on cookie banners killing your performance. Yes, that consent modal is costing you more than you think.                                                              Jakub Jabłoński (Blazity) making the case that performance is a revenue   problem. If your LCP is slow, your pipeline is leaking. Full stop.                                       Then drinks and real conversations with people who actually build this stuff.   No panels. No pitches.                                                                         📍 Nags Head, Covent Garden                            🕡 6:30 – 10:00 PM                                                                           Spots are limited. Grab yours and register, link in the comments.   

  • You can’t scale five codebases forever. ArthurAI's platform was taking off fast, but their frontend couldn't keep up. Our goal? Build a foundation that would support continued growth. Here's what we did: • Merged separated codebases into a single repository • Optimized dashboards and data visualizations • Unified the frontend with a dedicated UI components package What was once fragmented is now stable, unified, and future-ready. Read the full story: https://lnkd.in/dspBWhq9

  • In London on Feb 10? We’re hosting Frontend Forward - an evening of talks with folks from Vercel, c15t, and Blazity. It’s not a big conference. Just 50 people, real engineering stories, and lessons from teams who’ve had to make performance work under pressure. We’ll also be sharing our new whitepaper: The Revenue Cost of Slow - a technical analysis of how page load times affect conversion rates, user retention, and revenue. 📍 The Nag’s Head, Covent Garden 🗓️ Feb 10 | 6:30PM Secure your spot in the comments.

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