Built for Umbraco agencies

Bug tracking for
Umbraco agencies

Install the Lantern NuGet package, paste your client’s embed key, and a floating bug report button appears on the frontend — visible only to logged-in Umbraco backoffice users, invisible to everyone else.

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Lantern bug tracking widget on an Umbraco site

The widget appears on the frontend — only for logged-in Umbraco backoffice users

Stop chasing vague bug emails from Umbraco clients

You build the site. You hand it over. Then the emails start. “Something doesn’t look right.” “A form isn’t working.” Vague, context-free, and impossible to reproduce without five follow-up messages.

Without Lantern
✕"The news listing is broken" — what page? what browser?
✕Screenshot is the wrong part of the screen
✕Four emails to reproduce a two-minute fix
✕Issues reported via Slack, email, WhatsApp, and Teams
✕No record, no history, same questions every project
With Lantern
✓Client clicks the widget on the exact broken page
✓URL, browser, and device captured automatically
✓Title, description, urgency — fills in 60 seconds
✓Issue lands in Lantern, routed to the right client
✓One place for every bug, every client, every project

Set up in under 5 minutes

One NuGet package. One config key. Done.

01

Install the NuGet package

Add the Lantern package to your Umbraco v17 / .NET 10 project with a single command.

dotnet add package Lantern.Umbraco
02

Paste the client embed key

Go to your client's page in the Lantern dashboard and copy their embed key. Add it to appsettings.json — one line, one key per site.

{
  "Lantern": {
    "EmbedKey": "your-client-embed-key-here"
  }
}
03

The widget appears — only for backoffice users

A floating bug report button appears on the frontend, but only for logged-in Umbraco backoffice users. Regular visitors see nothing. No feature flags, no conditionals, no maintenance mode toggle.

Available on

NuGet PackageUmbraco Marketplace
Backoffice-only gate

Invisible to visitors.
Always on for editors.

The widget checks for Umbraco’s backoffice session cookies —UMB_PREVIEW(set when an editor opens the frontend via Umbraco’s preview function) andUMB-BACKOFFICE(set when an editor has the backoffice open in another tab). If neither is present, the widget doesn’t render at all.

Install once and leave it running. Clients and editors can report issues whenever they’re on the site. Everyone else sees the site exactly as it is.

Editor with backoffice session
✓Widget visible
Editor in preview mode
✓Widget visible
Public visitor
✕Nothing renders
Logged-out user
✕Nothing renders
Search engine crawler
✕Nothing renders

What the widget looks like

A small floating button in the corner. Click it, describe the issue, submit. Issues land straight in your Lantern dashboard.

Lantern bug reporting widget open on an Umbraco site

Simple, transparent pricing

14-day free trial on Individual. No credit card required.

Individual

£12.50/month

For freelancers and solo developers

  • 5 clients
  • Unlimited issues
  • Loom video integration
  • Email & in-app notifications
  • Internal notes
  • Mentions & assignments
  • Client self-service portals

Replaces:

  • • Email threads (free but chaos)
  • • Trello cards
  • • Loom subscription
Start Free Trial

No credit card required

Most Popular

Team

£30/month

For agencies with multiple team members

  • Unlimited clients
  • Unlimited issues
  • Unlimited team members
  • Everything in Individual
  • Priority support

Saves your team:

  • • 5 hours/week clarifying bug reports
  • • 3 hours/week in status meetings
  • • Countless back-and-forth messages
Choose Team

Payment required upfront

Frequently asked questions

Which versions of Umbraco does the package support?▼

The package targets Umbraco v17 on .NET 10. If you need support for an earlier version, get in touch at hello@lanternhq.app.

Will visitors see the widget?▼

No. The widget checks for the UMB_PREVIEW and UMB-BACKOFFICE cookies, which are only set for authenticated backoffice users. If neither cookie is present, the widget renders nothing — not a collapsed button, nothing at all.

Can I use this across multiple Umbraco client sites?▼

Yes. Each client in your Lantern dashboard has their own embed key. Install the package on each Umbraco site with the corresponding key and bugs route to the right client automatically.

What details does the widget capture?▼

Title, description, urgency, browser (auto-detected), device (auto-detected), the URL of the page where the issue occurred, and optional name and email. Everything your dev needs to reproduce and fix the issue.

Does this replace the Lantern client portal?▼

It's complementary. The portal link works great for clients who prefer to report bugs from a separate tab. The embedded widget is there when a client is already on the site and notices something wrong — no context-switching needed.

Can I connect issues to Jira?▼

Yes. Lantern integrates with Jira. When a client submits an issue through the widget, it can automatically create a Jira ticket in the right project. Your dev team works in Jira; the client never needs to see it.

Add bug tracking to every Umbraco site you build

One NuGet package. One config key. Clients report bugs in context. Free 14-day trial, no card needed.

Start free trialView on Umbraco Marketplace

From the blog

Umbraco Bug Tracking: Add a Client Reporting Widget with the Lantern Package

How the backoffice-only widget gate works and how to set it up in under five minutes.

The Best Bug Tracking Tools for Umbraco Agencies in 2026

Why generic tools fall short — and which options are actually built for Umbraco workflows.