pyseoa-ts/dist/analyzer/canonical.js

SEO analysis tools for the web, ported from pyseoa (Python) to TypeScript

import * as cherrio from 'cheerio';
export function analyzeCanonical(html) {
    const $ = cherrio.load(html);
    const link = $('link[rel="canonical"]').attr("href");
    if (link === undefined)
        return {
            score: 0,
            message: "Missing canonical link.",
        };
    const canonicalUrl = link.trim();
    if (!canonicalUrl)
        return {
            score: 1,
            message: "Canonical link is empty.",
        };
    return {
        score: 3,
        message: "Canonical link is present.",
        canonicalUrl: canonicalUrl,
    };
}