Check backlink existence and rel after buying them

backlink-checker.ts

import Scraper from './Scraper';
const scraper = new Scraper();
import colors, { Color } from 'colors';

declare global {
  interface String {
    checking: Color;
    notfound: Color;
  }
}
colors.setTheme({
  checking: ['green', 'bold'],
  notfound: ['red', 'bold'],
});

const backlinkChecker = async (jsonPath: string) => {
  const notFound: string[] = [];
  const toCheck = require(jsonPath);

  console.log(''.grey);
  console.log('Starting backlinks check'.grey);

  for (const check of toCheck) {
    const { date, target, backlink } = check;
    console.log('Checking', target.checking);

    try {
      const dom = await scraper.getUrlDom(target);
      const backlinks = dom.window.document.querySelectorAll(`a[href*="${backlink}"]`);

      if (backlinks.length === 0) {
        console.log('❌', backlink.notfound, date);
        notFound.push(check);
      }

      [...backlinks].forEach((link) => {
        const rel = link.getAttribute('rel');

        if (rel?.includes('nofollow')) {
          notFound.push(check);
          console.log('❌', backlink.notfound, 'nofollow');
        } else {
          console.log('✅', target);
        }
      });
    } catch (error) {
      console.error('Error:', error);
    }

    await new Promise((resolve) => setTimeout(resolve, 1000));
  }

  console.log(''.grey);
  console.log(notFound.length, 'Links not found');
  console.log('\n', notFound);
};

export default backlinkChecker;

backlinks.json

[
  {
    "date": "",
    "target": "https://cryptomode.com/should-you-start-staking-shiba-inu/",
    "backlink": "https://stakingcrypto.io/stake/SHIB/shiba-inu"
  },
  {
    "date": "",
    "target": "https://lespepitestech.com/startup-collection/crypto",
    "backlink": "https://stakingcrypto.io"
  }
]

Scraper.ts

import axios, { AxiosRequestConfig } from 'axios';
import { JSDOM } from 'jsdom';

export default class Scraper {
  public JSDOM = JSDOM;

  constructor() {}

  async getUrl(url: string, axiosConfig?: AxiosRequestConfig) {
    const { headers, ...options } = axiosConfig || {};

    const config: AxiosRequestConfig = {
      method: 'GET',
      headers: {
        // https://oxylabs.io/blog/5-key-http-headers-for-web-scraping
        'Accept-Encoding': '*',
        Accept: 'test/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8',
        Cookie: '',
        ...(headers || {}),
      },
      timeout: 5000,
      ...options,
    };
    const { data } = await axios(url, config);
    return data;
  }

  async getUrlDom(url: string, axiosConfig?: AxiosRequestConfig, options?: GetUrlConfig) {
    const data = await this.getUrl(url, axiosConfig, options);

    return new JSDOM(data);
  }
}

Here is what it will look like in the terminal