Web Performance
Send Seba a URL and it benchmarks the page — load time, Core Web Vitals, bundle and resource sizes — then returns a report with fixes ranked by impact. It measures your site; it doesn’t change it. Billed per run.
Real numbers and a fix list, not a vanity score
Measured, not guessed
Seba reads actual navigation and resource timing from the live page — TTFB, FCP, LCP, full load, bundle and transfer sizes — so every number is real, not an estimate.
Fixes ranked by impact
Each finding comes with the cause and a specific fix, ordered so you start with the change that shaves the most milliseconds, not the easiest one.
Bundle size as the leading signal
Load time swings with the network; bundle size is deterministic. Seba tracks JS and CSS weight and flags the heavy chunks dragging first load.
Just send a URL
No Lighthouse setup, no CI config. Send a link in Telegram and the report comes back as a file, billed per run.
What the benchmark measures
The same metrics a performance engineer pulls from a running page.
- Core Web Vitals — LCP, CLS and the render path behind them
- Load timing — TTFB, FCP, DOM interactive, DOM complete, full load
- JS bundle — total weight and the heaviest chunks on first load
- CSS bundle — stylesheet weight and render-blocking files
- Resource waterfall — the slowest requests by duration and size
- Network summary — total requests, transfer size, by type
- Third-party scripts — what’s blocking render that isn’t yours
- Performance budget — measured values against sensible thresholds
- Prioritized fixes — cause and specific change, ranked by impact
From URL to performance report in three steps
Open Seba in Telegram
One tap into @meetseba_bot. No install, no signup forms.
Send the page to benchmark
“Benchmark example.com and rank the performance fixes.” That’s the whole brief.
Get the report
Seba measures the live page, scores it against budgets and returns a ranked fix list with the exact credit cost shown up front.
When to benchmark performance
Catch the slowdown before users feel it.
- +A page feels slow and you need to know why
- +Before and after a redesign or framework change
- +Bounce rate climbing on a key landing page
- +Auditing a competitor’s speed for context
- +Checking a new release didn’t bloat the bundle
- +Sizing up Core Web Vitals before a launch
Frequently asked questions
What does the benchmark measure?+
Core Web Vitals, load timing (TTFB, FCP, LCP, full load), JS and CSS bundle sizes, the slowest resources, network totals and third-party scripts — each with a fix ranked by impact.
Does Seba change my site to make it faster?+
No. Seba measures the page and returns a report with prioritized fixes. You or your developer make the changes. Seba does not deploy or touch your code.
Can it benchmark any page?+
Yes — send any public URL. Seba loads the live page and reads its real performance timing. Pages behind a login aren’t accessible.
Is this just a Lighthouse score?+
No. A single score hides what to fix. Seba returns the underlying metrics plus a ranked list of causes and fixes, so you act instead of staring at a number.
What format is the report?+
A structured report file you can read or hand to a developer, grouped by impact. Ask for a checklist or a budget table and Seba formats it that way.
How much does it cost?+
You spend credits per run, and Seba shows the exact cost before it starts. Start free with welcome credits; credits never expire.
Benchmark your page in a single message
Send Seba a URL and get a performance report with ranked fixes back. Pay only for the run.
No install · no signup forms