10 Tips to Optimize Your Website Using Free Online Tools

Most website optimization advice tells you to "improve SEO" and "boost performance" without saying what to actually click on. This is the opposite of that.

Ten specific actions to optimize your website today, each with one free tool and a one-sentence reason it matters. Run through them once on your live site and you'll catch problems that quietly cost traffic.

This is a website audit checklist you can finish in under half an hour, not a strategy document. Here's tip one.

Why a Checklist Beats Scattered Website Optimization Tips

Most website optimization tips arrive one at a time, from a different article each week, with no sense of which ones actually matter for the page you're looking at right now.

Free SEO tools solve the individual checks fine, but running them in a fixed order once is worth more than bookmarking ten separate articles you'll never revisit. Page speed optimization, search visibility, and crawler readiness all get covered in one pass below.

Each tip below names one specific action, one tool, and the reason it matters - nothing you have to interpret or adapt before you can actually use it.

Make Sure People Can Find You in Search

Three checks decide whether your page shows up correctly once someone actually searches for it.

Check your title and description length. The Meta Tag Generator works as a meta description checker too - paste your current tags in and confirm they're built to the length search engines actually display, not the length that looked fine in your CMS editor.
Preview your actual search result. The Google SERP Preview tool renders your title and description at real pixel width, catching a description that truncates mid-sentence before a reader ever sees it happen live.
Check keyword density on your top pages. Run your main landing page through the Keyword Density Checker and flag anything crossing roughly 2-3 percent - a sign of repetition that reads as spammy rather than relevant.

Make Sure Links Look Right When Shared

Two checks control what happens the moment your URL gets pasted somewhere else.

Verify your share preview. The Open Graph Checker works as a share preview checker for Facebook, Twitter, and LinkedIn - enter your og:title, description, and image manually and compare it against what's actually live.
Do a round of URL slug optimization. A messy URL undermines an otherwise optimized page. The Slug Generator turns a long title into something short, lowercase, and hyphenated worth actually publishing.

Fix Performance and Accessibility Issues

Two checks catch problems that cost you readers before they've read a word.

Run image compression for web before uploading. Run every hero image and thumbnail through the Image Compressor - a quality setting around 80 percent is usually indistinguishable from the original while cutting file size substantially.
Use an accessibility checker on text over images. The Contrast Checker measures any foreground and background pair against WCAG thresholds, catching a caption that looks fine on your monitor and fails outdoors on a phone.

Confirm Crawlers Can Read Your Site Correctly

Three checks decide whether search engines and AI systems understand your site the way you intend.

Confirm robots.txt isn't blocking pages you want indexed. Review your disallow rules, or rebuild the file from scratch with the Robots.txt Generator if it's grown unclear from years of hand-edits.
Add an llms.txt file if you don't have one. The LLMS.txt Generator produces a structured description of your site for AI systems to reference - a newer part of a website optimization checklist most sites still haven't done.
Validate any structured data on the page. A single syntax error in a JSON-LD block breaks it silently. Run it through the JSON Validator before you assume your rich results are working.

What Running This Actually Finds

A typical first pass on a site that's never been audited this way turns up something in nearly every section, not because the site is badly built, but because these are exactly the details nobody checks by accident.

A common find in step one is a meta description that runs forty characters past the cutoff, quietly truncating on every single result page without anyone noticing it in the CMS editor, where there's no length limit shown.

A common find in step six is a hero image sitting at three or four times the pixel dimensions the layout actually displays, uploaded once at full camera resolution and never touched again since.

The Ten Tips at a Glance

One pass, ten checks, roughly twenty-five minutes end to end.

Website optimization tips checklist
#	Tip	Tool
1	Check title and description length	Meta Tag Generator
2	Preview your actual search result	Google SERP Preview
3	Check keyword density on top pages	Keyword Density Checker
4	Verify your share preview	Open Graph Checker
5	Clean up your URL slugs	Slug Generator
6	Compress images before uploading	Image Compressor
7	Check contrast on text over images	Contrast Checker
8	Confirm robots.txt isn't over-blocking	Robots.txt Generator
9	Add an llms.txt file	LLMS.txt Generator
10	Validate structured data	JSON Validator

Common Mistakes When Running a Website Audit

A handful of habits undermine an otherwise thorough pass.

Auditing only the homepage and assuming every other page follows the same pattern
Fixing metadata without checking the rendered SERP preview, missing a truncation that only shows up visually
Compressing images after resizing instead of before, which wastes the compression work
Treating this as a one-time task instead of rerunning it after any major site redesign
Skipping structured data validation because the page renders fine for a human visitor

Expert Tips for Making This a Habit

Run the full ten-tip pass once, then only revisit the sections a redesign or new content type actually touches. A homepage rebuild needs sections one through seven again; a new blog template mostly needs eight through ten.

Keep a simple record of the date you last ran this checklist. Six months without a pass is long enough for metadata to drift, images to grow, and a robots.txt rule someone added for a temporary reason to quietly stay forever.

Frequently Asked Questions

How often should I run a website optimization checklist like this?

Once as a baseline, then again after any major redesign, content migration, or platform change. Metadata and structured data don't degrade on their own, but they do drift as pages get edited piecemeal over months.

Which of these ten tips matters most if I only have time for one?

Checking your actual search result preview. A truncated or awkward snippet directly costs clicks on every page it affects, and it's the single fastest check to run and fix in this whole list.

Do I need to validate structured data if my page looks correct?

Yes - a broken JSON-LD block fails silently. The page renders normally for a visitor while search engines and AI systems parsing the structured data get nothing usable from it, so visual correctness tells you nothing here.

Is compressing images still necessary if my site already loads reasonably fast?

It's still worth checking. "Reasonably fast" on your own connection can be considerably slower for a visitor on mobile data, and image weight is usually the largest single factor in that gap.

Should a small site bother with an llms.txt file?

It costs nothing to add and takes a few minutes with a generator tool. It's not yet essential the way robots.txt is, but sites that adopt it early are positioned to be represented accurately as more systems start reading it.

Conclusion

None of these ten checks require a developer, a subscription, or more than half an hour together. What they require is actually running them - the goal is to optimize your website with evidence, not assume a site that looks finished already is.

Pick the section that maps to your biggest current guess - search visibility, sharing, performance, or crawlers - and start there. The rest of the checklist will still be here when you're ready for it.