How to check website SEO step by step: a 10-minute checklist

In Chile, 90.23% of searches go through Google, according to StatCounter (September 2026). If your site has a basic error, such as a page without a title or one blocked by accident, you lose visits on the search engine almost everyone uses. The good news is that you can check website SEO essentials in about 10 minutes. This checklist tells you what to look at and with which tool.

2 min

Indexing

site: search on Google

1 min

Crawling

robots.txt and sitemap

3 min

On-page SEO

title, description, H1

3 min

Speed and mobile

Core Web Vitals

1 min

Security

HTTPS across the site

View the data as a table

Indexing	2 min | site: search on Google
Crawling	1 min | robots.txt and sitemap
On-page SEO	3 min | title, description, H1
Speed and mobile	3 min | Core Web Vitals
Security	1 min | HTTPS across the site

Step 1 to check website SEO: does Google know your site? (2 minutes)

Search for site:yourdomain.com on Google. If results appear, your site is in the index. If nothing shows up, or important pages are missing, that is your first problem. In Google Search Console you can see the page indexing report and the reasons why some pages are not in Google.

Step 2: check robots.txt and the sitemap (1 minute)

Open yourdomain.com/robots.txt. Look for Disallow: / lines that block the whole site: a common mistake after moving a staging site to production. According to the 2025 Web Almanac, on 13.2% of mobile sites the robots.txt does not even exist and returns a 404 error (Google reads that as "no restrictions"). Also check that the robots.txt points to your sitemap.

Step 3: check the on-page SEO of your key pages (3 minutes)

Paste the URL of your home page and your two or three most important pages into our tool to check website SEO. In seconds you see:

• whether each page has a title of reasonable length and a meta description;
• whether there is a clear H1;
• whether it declares a canonical URL;
• how many images have no alternative text;
• whether a noindex tag is keeping the page out of Google.

✓▣Free toolFree SEO Checker: on-page SEO analyzerPaste a URL and check its title, meta description, headings, canonical, languages, images and links.Use tool →

These errors are not rare: the 2025 Web Almanac found that 30% of mobile pages have no H1 and 33% have no meta description.

Step 4: measure speed and the mobile version (3 minutes)

Open PageSpeed Insights and analyze your home page. Look at the three Core Web Vitals:

Metric	What it measures	Google's target
LCP	How long the main content takes to appear	2.5 seconds or less
INP	How long the page takes to respond to a click	200 milliseconds or less
CLS	How much the page shifts while loading	0.1 or less

52% of mobile sites fail Core Web Vitals, according to the same report. Remember that Google indexes the mobile version of your site, so always check that tab first.

Step 5: confirm everything uses HTTPS (1 minute)

Type your domain with http:// and check that it takes you to the https:// version. Your analyzer shows it on the "final URL" line. Today 91.5% of mobile pages already use HTTPS, according to the Web Almanac.

What to do with what you find

Write down each problem and sort it like this: first, what prevents indexing (blocks, noindex); then, what changes how you appear (titles, descriptions); and last, the improvements (images, speed). We explain how to read each result in our article on how to read SEO analyzer results.

This checklist helps you check website SEO at a basic level. You can repeat it every month with the same tool to check website SEO and compare the results. If you find many problems, or your site has hundreds of pages, move on to a full SEO audit. More guides in our SEO section.