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Measured on six things

Esports surebet scanner with live ROI, stake calculator and alerts.

Growth

Real problem (esports arb is fast and manual), specific customer (multi-book esports bettors), and a genuine wedge: esports depth plus Polymarket/Kalshi coverage the general scanners don't have. Early, but the idea has room.

Screenshots

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Dozor

About this app

Dozor is a surebet scanner for esports. It compares odds at 27 bookmakers plus Polymarket and Kalshi, surfaces arbitrage where both sides of a market return more than the stake, and shows live ROI, the exact outcomes and how stale each price is. A stake calculator splits the total so both sides return the same, exchange commission included. Extras: middles, ROI and bookmaker alerts, a match table with every price on one match, and a bet journal with profit tracking. Free tier available.

Key features

1Surebet scanner across 27 bookmakers plus Polymarket and Kalshi prediction exchanges
2Commission-aware stake calculator that equalizes payout across both sides
3Live ROI, exact outcomes, and per-price staleness timers on every arbitrage
4Rule-based alerts (min ROI, discipline, bookmaker, live/prematch) with sound and browser notifications
5Match table showing every bookmaker's price on one match, plus a bet journal with profit tracking

Target customer profile

Drawn from the product itself, not from a survey.

Demographic

Esports bettors holding accounts at several bookmakers

Pain points

Comparing prices tab by tab and missing short-lived arbitrage

Primary needs

One live board, exact stakes, alerts above a ROI threshold

Demographic

Semi-pro traders on exchanges

Pain points

Manual maths under time pressure, commission eating the edge

Primary needs

Commission-aware staking and ROI filters

Demographic

Tipsters and odds bloggers

Pain points

No clean esports odds data

Primary needs

Structured data and history

Scout Review

Written by AI from measured evidence, scored out of 100.

Dozor is a focused esports surebet scanner with a real point of view: 27 bookmakers plus prediction exchanges, commission-aware staking, staleness timers, and a clean branded interface that makes dense odds data readable. The engineering fundamentals are strong — fast page, full security headers, four languages. The gaps are the ones early products always have: no public docs, no compliance receipts, accessibility defects the audit flags, and a homepage that shows demo data instead of the real thing. It's a competent, well-positioned tool that needs to prove the scanner itself is as sharp as the landing page.

Measure by measure

Usability

Clear value prop, Telegram/email login, free tier with no card, and a documented 3-step flow. But the homepage table is demo data and there's no visible help center or docs — you learn by signing up.

Design

Cohesive dark green/black brand with a memorable pirate mascot, sharp green CTAs, and a dense-but-readable live odds table. Repetitive mascot cards and a cookie banner overlapping the table hold it back.

Speed

Lighthouse mobile 91/100 and desktop 99/100, CLS 0, TBT 45ms. LCP of 3.5s on mobile is the one soft spot on an otherwise fast, well-built page.

Security

Full 12/12 security header checklist: HSTS, CSP, frame protection, Referrer-Policy, Permissions-Policy, SPF and DMARC all set. No published audits, SOC 2, or 2FA mentioned — solid hygiene, no compliance receipts.

Accessibility

Lighthouse 93/100 with four languages (RU/EN/ES/PT) and a responsive layout. Failing contrast, prohibited ARIA, and mismatched accessible names on labeled elements are real, fixable gaps.

Growth

Improvement areas

No public documentation or help center — onboarding is signup-only
Accessibility defects: contrast, prohibited ARIA, mismatched accessible names
No 2FA, SOC 2, pen-test disclosure, or bug bounty despite handling betting accounts
Homepage shows demo data instead of an interactive scanner preview

Design & Usability

Dozor's homepage is a confident, branded pitch: dark green palette, a pirate mascot that actually sticks, and a live odds table that shows ROI, bookmaker logos, and staleness timers in one glance. The design earns its keep — it makes a dense data product feel legible. Usability is where it thins out: Telegram/email login and a no-card free tier are genuinely frictionless, and the 3-step explainer does real work, but the homepage table is explicitly demo data and there's no visible docs or help center. You learn the product by signing up, not by reading. For a tool aimed at people making split-second decisions under time pressure, that's a gap worth closing with a real onboarding walkthrough.

Speed & Security

Speed is a clear strength: Lighthouse 91 mobile / 99 desktop, CLS 0, TBT 45ms — the page is light and snappy, with only a 3.5s mobile LCP as a blemish. For a scanner that pushes live arbitrage to the browser, a fast front end matters, and this one delivers. Security is solid hygiene without receipts: all 12 header/DNS checks pass (HSTS, CSP, frame protection, SPF, DMARC), which puts it ahead of many indie tools. But there's no SOC 2, no pen-test disclosure, no bug bounty, and no mention of 2FA on the Telegram/email login. For a product handling betting accounts and money math, that's the next rung to climb.

Accessibility & Growth

Accessibility lands at 68: Lighthouse 93/100 and four languages (RU/EN/ES/PT) are real positives, but failing contrast, prohibited ARIA attributes, and mismatched accessible names are concrete, fixable defects — and there's no WCAG statement. Growth is the more interesting story. The category is crowded with general scanners (Oddschecker, Oddspedia) that treat esports as an afterthought. Dozor's wedge is genuine: esports-only depth across 27 books plus Polymarket and Kalshi, commission-aware staking, and staleness timers. That's a specific, underserved segment with a real reason to pick it. The limit is structural — the wedge is copyable, and the domain is barely months old. Good idea, early execution.

Conclusion

If you're an esports bettor juggling five bookmaker tabs and doing commission math in your head, Dozor is aimed squarely at you and the free tier costs nothing to test. The question isn't whether the idea is good — it clearly is — but whether the live scanner delivers the speed and accuracy the marketing promises. Sign up, run it against a match you know, and judge the product, not the pirate.

Suggestions for improvement

Publish real docs or a help center — the homepage explainer isn't enough for a tool people use under time pressure.
Fix the failing accessibility audits: contrast ratios, prohibited ARIA attributes, and accessible names on labeled controls.
Add 2FA to Telegram/email login and publish a security page — you're handling betting accounts and money math.
Show a real (or clearly interactive) scanner preview on the homepage instead of static demo data to reduce signup friction.

How we score

Alternatives comparison

Named competitors, point by point. Nobody paid to appear here or to be left out.

	Dozor	Oddschecker	Oddspedia
Esports-specific arbitrage coverage	Esports-only: 21 disciplines, 35+ market types	Multi-sport with limited esports depth	Multi-sport scanner with some esports coverage
Prediction market coverage (Polymarket / Kalshi)	Yes — both Polymarket and Kalshi integrated	No	No
Commission-aware stake calculator	Yes — includes exchange commission, currency, stake step	Basic arbitrage calculator	Arbitrage calculator available
Price staleness timers	Yes — seconds since each price updated	Not a headline feature	Live odds updates, no explicit staleness timer
Free tier	Free forever, no card; PRO from 120₽/day	Free odds comparison; premium features vary	Free with ads / premium tiers
Bet journal / profit tracking	Yes — save from calculator, track profit, export	Not a core feature	Limited / not core