LinChen Technology · Enterprise-grade security

After you send the quote,
you're still in control

A quote is no longer water under the bridge. LinChen SecureSend gives every quote you send burn-after-reading, watermark traceability, and behavior tracking — so your sensitive information always stays in your hands.

Is your quote really safe?

With traditional ways of sending quotes, you never know where they end up.

🔓

Quote forwarded to competitors

Clients screenshot your bottom price and send it to competitors for comparison, leaving you with zero leverage in negotiations.

👻

No idea if the client read it

The quote goes out and sinks like a stone. Did the client read it? For how long? What caught their interest? You know nothing.

📸

Screenshots & reprints spread it

Right-click save, Ctrl+P print, phone camera — your quote flows freely inside the client's organization, completely unprotected.

Six layers of protection, full control of every quote

From sending to viewing, from leak prevention to client insight — safeguarding your trade secrets end to end.

🔥

Burn after reading

Set a 3/5/10/15-minute viewing window; access is auto-revoked when the timer ends. Supports resume-on-refresh so the page never drops.

💧

Dynamic watermark traceability

Watermark carries the client IP, access time, and access-code ID, tiled across the whole page at -25° rotation. Photo leaks can be traced to a person.

🛡️

Copy-protection matrix

Disables right-click, selection, printing, and dragging; blocks 12 shortcut combos like Ctrl+S/P/C; auto-ejects on DevTools detection.

📊

Client behavior tracking

Tracks dwell time, scroll depth, and quote-section reach rate in real time. Know exactly what interests the client and when to follow up.

🔒

Concurrent session exclusion

Opening the same access code on multiple devices is mutually exclusive, preventing the client from sharing the link with others. One code, one person.

One-click distribution

Upload the quote HTML → generate an 8-digit guess-proof access code → copy the link and send to the client. All in under 30 seconds.

Secure sending in three steps

No training, no client deployment — just open a browser and go.

1

Upload the quote

Drag your prepared HTML quote file into the admin console. Batch upload supported.

2

Generate access code

Set validity, view count, and burn-after-reading params. One click generates an 8-digit guess-proof access code.

3

Send the link

Copy the link with the access code and send it to the client. They open and view; protection runs automatically throughout.

Four layers of defense in depth

From network transport to frontend rendering, every layer holds the line for you.

1

Transport · TLS + CSP + Security Headers

HTTPS encrypted transport, X-Frame / XSS / CSP headers injected, clickjacking and XSS attacks fully blocked

2

Server · Token auth + Rate limit + CSRF

Signed token valid for 1 hour, IP rate limit 10/min, global CSRF token, forced production secret validation

3

Frontend · Canvas rendering + copy protection

Quote rendered as a Canvas image; the client never touches the raw HTML. 12 shortcut combos blocked, DevTools detected

4

Watermark · full-page tiled, non-strippable

IP + time + CodeID watermark at highest z-index, rendered with the Canvas as a whole; traceable even via screenshot

You understand your clients better than you think

Every read of every quote turns into a quantifiable sales signal.

⏱️
2m 34s
Avg. dwell time
📜
76%
Avg. scroll depth
🎯
82%
Quote-section reach
📱
64%
Mobile share

* Illustrative figures. Your real data is auto-generated by the system after you start using it.

Annual subscription, transparent pricing

Every plan includes a 14-day free trial, cancel anytime before it ends.

Starter
For freelancers and small teams who send quotes occasionally
¥1,980/yr
≈ ¥165/mo
  • 50 quotes / month
  • 3 admin accounts
  • Basic security
  • Basic behavior tracking
  • Basic watermark
  • Burn after reading
  • Concurrency control
  • Data export
  • Email support
Free 14-day trial
Enterprise
For mid-to-large enterprises with high-volume and custom needs
¥12,800/yr
≈ ¥1,067/mo
  • 1000 quotes / month
  • Unlimited admins
  • All Pro features
  • API system integration
  • Custom brand / domain
  • Multi-team management
  • On-prem deployment optional
  • Dedicated account manager
  • 7×24 hr support
Contact us

Keep every quote in your hands

14-day free trial, no credit card required. Start protecting your trade secrets today.