crawler_detector 0.0.2

Functions for detecting user agents that are web crawlers, such as search engines, ad systems, and more, which can help optimizing the app for better crawlability.

Helps Flutter and Dart apps detect when they are being crawled by a web crawler.

Features

This package pattern-matches the user agent string against a list of known patterns to detect a crawler.

The implementation can detect crawlers in all Dart web targets, including Flutter Web apps, and DOM-based Dart apps (e.g. those using Jaspr or AngularDart).

Dart VM targets are not web targets, and therefore you can never detect a crawler from within the Dart VM (e.g. command-line Dart apps, Flutter mobile or desktop apps).

Usage

Add a dependency to pubspec.yaml:

dependencies:
  crawler_detector: any

Import the package and use it:

import 'package:crawler_detector/crawler_detector.dart';

void main() {
  final bool isCrawlerUserAgent = detectCrawler();
  print('The current user agent is${isCrawlerUserAgent ? '' : ' not'} a crawler.');
}