Tools that actually do the work.
No paywalls on the basics. No fluff. Just fast, accurate utilities built for developers and SEO professionals who have deadlines.
Built by developers, for developers
We started building websites in 2012 and spent years running three different tools to get a complete picture of one site's health — a broken-link checker, an SEO crawler, and a manual redirect audit in a spreadsheet. None of them talked to each other. ByteWaveNetwork is the toolkit we wish had existed: every audit in one place, free, with no account required.
Pick your weapon.
Each tool is built around a single job done exceptionally well.
Link Checker
Crawl your site for broken links, blocked URLs, canonical issues, redirect chains, and slow pages. Real-time streaming, paginated results, CSV/JSON export.
SEO Site Audit
Crawls your whole site and checks every page for 22 technical SEO issues — duplicate titles, missing canonicals, noindex pages, and more.
Redirect Tracer
Trace full redirect chains for any URL. See every hop, status code, response time, and the final destination. Detects redirect loops.
Page Speed Inspector
Real server-side performance metrics: TTFB, DNS, TCP, TLS timing, compression, caching, HTTP/2 — no Google API required.
Sitemap Validator
Parse and validate XML sitemaps. Checks every URL for 404s, redirects, noindex directives, and canonical mismatches — in real time.
Schema Markup Tester
Validate JSON-LD, Microdata, and RDFa. See exactly what Google's structured data reads, with required property checks for 18 schema.org types.
Page SEO Score
Get a 0–100 score on any URL across 14 signals: title, canonical, Open Graph, JSON-LD, E-E-A-T, content depth, and more. Single page or full site scan.
Benchmark LLM capabilities.
Open-source evaluation suite with pre-computed results and live run support using your own API key.
Context Retrieval Eval
Needle-in-a-haystack benchmark. Hides a fact at the 85–95% position of a large document and tests if any LLM can retrieve it. Compare Claude, GPT-4, DeepSeek.
Instruction Following Eval
Tests whether LLMs follow precise formatting constraints: word limits, bullet counts, exclusion rules, case requirements. Four difficulty levels from Easy to Extreme.
Agentic Loop Reliability Eval
Runs each model through a 5-step research chain: Wikipedia search, weather lookup, country data, a second search, and final synthesis. Find exactly which step breaks.
Thinking Mode Eval
Does extended thinking actually improve scores? Runs 8 questions across math, coding, factual, and creative categories with thinking ON and OFF. Real runs reveal regressions.
Prompt Sensitivity Eval
10 phrasings of the same question scored 1–10. Measures standard deviation as a stability signal. Reveals which models collapse on specific wordings of coding, factual, or reasoning tasks.
What a scan looks like
Link Checker results stream in real time. Every row is colour-coded by status with source page, response time, and canonical state visible at a glance.
Who builds these tools
Sunny Singh — Founder
I've been building web applications and diagnosing SEO issues since 2012. Every tool here came from a real pain point: the Link Checker from hours spent hunting 404s after a migration, the Page Speed Inspector from clients who couldn't interpret Google's PageSpeed report, the SEO Analyzer from wanting Screaming Frog's output without a £149/year seat. All tools are built, tested, and maintained by me — I use them on client sites monthly.
How we approach technical SEO
Technical SEO has three layers most site owners miss:
- Crawlability — Googlebot must reach every page you want indexed. That means clean internal links (no 404s, no redirect chains longer than 2 hops), a valid sitemap with only canonical 200-status URLs, and a robots.txt that doesn't accidentally block key directories.
- Indexability — Reaching a page isn't the same as indexing it. Noindex tags, canonical mismatches, and duplicate content can all prevent a page from appearing in search even if Googlebot crawls it daily.
- Signals — Once a page is indexed, rankings depend on structured data (schema.org tells Google exactly what type of content it is), Core Web Vitals (LCP, CLS, TBT affect ranking since 2021), and E-E-A-T signals in the content itself.
Each ByteWaveNetwork tool addresses one or more of these layers directly. The Link Checker and Sitemap Validator cover crawlability. The SEO Analyzer covers indexability signals. The Schema Markup Tester and Page Speed Inspector cover the Signals layer.
Frequently asked questions
- What's the difference between a broken link and a blocked link?
- A broken link returns 4xx/5xx — the page is missing. A blocked link returns 403/429 — the server refused the bot. Our Link Checker shows both separately so you know which to fix and which to ignore.
- Do I need an account?
- No. All tools are free, no signup required. Results are stored anonymously for 30 days and reloadable by scan ID.
- Can I automate scans in CI/CD?
- Yes — every tool has a REST API (OpenAPI 3.0 spec at /docs). Stream results live via WebSocket or export CSV/JSON on completion.