pyseoa-ts/dist/analyzer/keywords.js

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

import * as cheerio from 'cheerio';
export function analyzeKeywords(html) {
    const $ = cheerio.load(html);
    const content = $('meta[name="keywords"]').attr('content');
    if (!content || content.trim() === '')
        return {
            score: 0,
            message: "Missing or empty keywords meta tag.",
            keywords: [],
        };
    const keywords = content
        .split(",")
        .map(k => k.trim())
        .filter(k => k.length > 0);
    if (keywords.length < 3)
        return {
            score: 1,
            message: "Too few keywords.",
            keywords: keywords,
        };
    if (keywords.length > 10)
        return {
            score: 2,
            message: "Too many keywords.",
            keywords: keywords,
        };
    return {
        score: 3,
        message: "Keywords count is optimal.",
        keywords: keywords,
    };
}