Requirements

• Node >= 8.0, npm >= 5.0

How to use this library

• npm install seo-verify
• or visit https://github.com/phucpnt/seo-verify

Write your own seo rules

• By default this library came with basic seo rules as the following snippet:

  seoVerify([
    rule('img', attrs => !attrs.alt, '<img /> missing alt'),
    rule('a', attrs => !attrs.rel, '<a /> missing rel'),
    rule('head meta', countLessThan(1)(attrs => attrs.name === 'description'), '<meta name="description" /> not found'),
    rule('head meta', countLessThan(1)(attrs => attrs.name === 'keywords'), '<meta name="keywords" /> not found'),
    rule('strong', countMoreThan(15)(() => true), '<strong> use more than 15 times'),
    rule('h1', countMoreThan(1)(() => true), '<h1> use more than 1 time'),
    rule('title', countLessThan(1)(() => true), '<title> not found'),
  ], yourInputHtml);

• A seo rule will need:
  1. A html tag or css element element selector
  2. A function for catching seo issue
     if you just need to validate a html tag exits just put a function that return true
  3. A message to print out seo issues on your console.
• Example for adding new rules:

  const {seoVerify , defaultRules, rule, countLessThan} = require('seo-verify');
  const inputHtml = `
  <!-- your html string -->
  `;
  seoVerify(defaultRules.concat([
    rule('head meta', countLessThan(1)(attrs => attrs.name = 'robot'), '<meta name="robot" /> not found')
    // more rules...
  ]), inputHtml)