Know why the page is broken —
in one sentence.
Whyvane is a browser extension that records every request a page makes — with your real login session — then turns browser error codes into one clear verdict, the party responsible, and three prioritized next steps. All analysis runs on your device.
Get the Pro license See how it worksAvailable for Chrome and Microsoft Edge · Free tier covers full diagnosis
How it works
Three steps, no configuration, no account.
Open the misbehaving page
Click the extension. It starts recording requests for that tab only — nothing else.
Reload once
Every request is captured with your real session, including the ones the Network panel hides behind a filter.
Read the verdict
One conclusion, the responsible party (our server / third-party / visitor's environment), and three concrete next actions.
What it clarifies
The failures support teams escalate most often — turned into plain language.
Page loads, APIs return 502
The shell is served from CDN cache while the backend is actually down.
Certificate failures
Expired, hostname mismatch or untrusted — which one it is, and who must renew it.
401 / 403
Judged inside your real session, so a missing token is never reported as an outage.
Third-party breakage
All first-party requests green while a payment SDK fails? It names the vendor domain.
CORS, mixed content, blocked
Cross-origin failures, HTTP assets on an HTTPS page, requests killed by other extensions.
Slow, not broken
Separates a genuine failure from a 4-second third-party script nobody noticed.
Built for support & success teams
Your customer installs nothing — no signup, no extension on their side.
Ownership, not blame
Every verdict is labeled our server / third-party / visitor's environment, with a customer-ready message you can paste straight into the ticket.
A yes/no question
Each report ends with one bounded question engineering can answer, instead of “please investigate”.
HAR import
A customer sent a DevTools export? Drop it in and get the same verdict offline.
Evidence guide
No HAR yet? One click copies a three-step instruction, privacy boundary included, that you can send to the customer.
Pricing
The free tier is a complete diagnostic tool. Pro is for people who have to hand the evidence to someone else.
| What you get | Free | Pro |
|---|---|---|
| Verdict, evidence, ownership and next actions | Included | Included |
| Ticket summary & customer-ready message | Included | Included |
| HAR import & evidence guide | Included | Included |
| Request table | First 8 rows | All requests |
| Failure details | First 3 | All |
| PDF / JSON report export | — | Included |
| Performance observations | — | Included |
| Local history of recent loads | — | Last 30 |
Pro — subscription · 7-day free trial · the current price is shown on the Creem checkout page before you pay.
- Checkout, invoices, card updates and subscription management are handled by Creem as Merchant of Record (cards, PayPal, Apple Pay, Google Pay).
- After payment you receive a license key — paste it into the extension once to unlock Pro on that machine. Reinstalling only needs the key again, not a new purchase.
Refund policy
After a refund is processed the Pro license is revoked and Pro features stop working immediately; the free tier keeps working. Subscription changes are self-service in the Creem customer portal, linked from inside the extension.
Privacy
Full privacy policy
1. What we process
While you browse, the extension passively records metadata of network requests made by the current tab only, through the official chrome.webRequest API: URL, method, resource type, HTTP status or browser error code, duration, cache status and destination IP. We do not read or record page content, form input, cookie values, passwords or general browsing history.
2. Where it is stored
- Request records and analysis — browser memory (storage.session); erased when the browser closes.
- License key and last verification result (paid users) — local storage, so the extension keeps working through a network blip; removable with “Deactivate”.
- License record (our server) — only a SHA-256 hash of the key, the subscription state and instance identifiers, kept while the subscription exists.
3. Third parties
Creem acts as Merchant of Record for payments, invoices, refunds and subscription management; we never receive card details. Our own license service receives the license key and a random installation ID at activation and on periodic verification — never any browsing data. Apart from license verification there is no code path that sends diagnostic data anywhere.
4. Your control
Pause or clear recording at any time from the popup, deactivate the license to remove the key and free its activation slot, and uninstalling removes all local data. Reports are generated only when you ask for them and are saved to your own computer.
5. Contact
Questions about privacy: aleynchina@hotmail.com
中文摘要
诊断数据全部在浏览器本机完成，请求记录、URL、IP 一律不上传；记录只存在内存中， 关闭浏览器即清空。扩展不读取页面正文、表单输入、Cookie、密码与浏览历史。唯一的对外请求是 许可证验证（只发送密钥与随机安装实例 ID），服务端只保存密钥的 SHA-256 与订阅状态。 支付、发票、退款与订阅管理由 Creem（Merchant of Record）处理，我们不接触卡号。 URL 中的登录凭据在进入报告前一律擦成 ***。隐私问题请联系 aleynchina@hotmail.com。
Effective 2026-10-22 · applies to the browser extension “Whyvane — Request Diagnostics” and this website.
Contact
Whyvane is built and maintained by an independent developer. Questions, bug reports, license and refund requests all reach the same inbox — usually answered within one business day.