# outdatedbrowser/outdated-browser

A simple tool to identify and upgrade old browsers.

Repository: https://github.com/outdatedbrowser/outdated-browser
Canonical: https://ross.abutalabs.com/products/outdated-browser
Homepage: https://bestvpn.org/outdatedbrowser/
Language: HTML
License: MIT
License Family: permissive
Last push: 2023-06-11T13:29:38+00:00

## Health v2 (maintenance only)
Score: 32/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 0, release rhythm 35, longevity 100
- inputs: {"age_days": 4557, "days_push": 1179, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 3493, forks 364 (observed 2026-08-28T04:08:07.291166+00:00)

## What it is
A lightweight JavaScript plugin that detects outdated browsers and displays a styled notice advising users to upgrade. It is embedded in web pages via CSS, JS, and a small HTML snippet, with multi-language support.

## Use cases
- detect old browsers visiting my website
- show upgrade notice to IE6/IE7 users
- warn users their browser doesn't support CSS3
- advise visitors to update their browser
- block modern site features on legacy browsers gracefully

## When to choose
- your site relies on modern CSS3/HTML5 features and you want to inform legacy-browser users
- you need a simple, dependency-free (or jQuery-compatible) drop-in script
- you want multilingual upgrade notices

## When to avoid
- you need feature detection rather than browser-version detection (use Modernizr)
- your project no longer supports legacy browsers at all
- you want active development or modern ES module integration

## Facets
- artifact type: plugin
- maturity: maintenance
- function: browser-extension, ui-components, frontend-framework
- domain: web-development, frontend, browser-extensions
- platform: browser, cross-platform
- tags: outdated-browser-detection, browser-upgrade-notice, javascript-plugin, ie-compatibility, web-server

## Member repositories
- outdatedbrowser/outdated-browser (main) score 32

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:08:07.291166+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-29T18:35:56.210996+00:00, confidence not recorded.
  - readme: https://github.com/outdatedbrowser/outdated-browser (fetched 2026-08-28T04:08:07.291166+00:00, sha bb869706cb21)
  - homepage: https://bestvpn.org/outdatedbrowser/ (fetched 2026-08-29T09:30:03.295660+00:00, sha 1fcb9aa1f5ac)
- Data as of 2026-08-30T08:39:29.467469+00:00.