Website SEO audit

Enter a page URL — the service runs 50 checks and returns a clear report: what is wrong, why it hurts search, and how to fix it.

Check a website What we check

No sign-up — up to 10 checks per month, report kept for 3 days

50 checks · report in seconds · no sign-up

How it works

1

Enter the page URL

A single page, a list of URLs, a sitemap or raw HTML.
2

Run the audit

The page is fetched directly and checked within seconds.
3

Fix what was found

Every issue comes with an explanation and a concrete recommendation.

50 checks across six areas

From basic document markup to performance and connection security.

Basic document setup

Doctype, charset, page language, favicon, a proper 404 page and robots.txt.

On-page SEO

Title, meta description, H1, canonical, indexability, Open Graph and structured data.

Content quality & markup

Word count, heading structure, text-to-HTML ratio and keyword usage.

Media & image optimization

Image formats, alt attributes and lazy loading.

Technical & performance factors

Response time, page size, HTTP/2, compression, SSL, HSTS and CSP.

Links

Internal and external links, unsafe link targets and forms on insecure URLs.
Title
Meta description
H1 tag
Meta keywords
404 page
robots.txt page
Language attribute
Favicon
Meta robots
Meta robots images
Header robots
Header robots images
Meta refresh tag
Response time
Page size
DOM size
Meta viewport
Meta charset
Deprecated HTML tags
Server tag
Server compression
Doctype declaration
Social links
Words count
Top used words
Plaintext emails
Text to HTML ratio
Secure URL (HTTPS)
Valid SSL certificate
Inline CSS
Image formats
Image alt attributes
Lazy loading images
Other headings
Canonical URL
SEO friendly URL
HTTP/2 enabled
Unsafe forms
Unsafe external links
Non-deferred javascript
The result

A readable technical report, not a pile of cryptic errors

Every item explains what exactly is wrong, why it matters for search and what to change to fix it. No vague advice like “improve your SEO”.

Check a website
Overall score out of 100
See the state of the page and how many checks it passed at a glance.
Issues sorted by severity
Major, moderate and minor — so you know what to fix first.
A recommendation for every issue
What exactly to change in the page code or in the server configuration.
Comparison with the previous audit
A re-run shows what was fixed and what has appeared since.

Platform features

To keep a website in shape continuously, not once a year.

Four audit types
A single page, a bulk list of URLs, a sitemap or pasted HTML.
Scheduled re-checks
Audits repeat on a schedule — from a few hours to a month.
Audit archive
Previous versions are kept, so changes are visible over time.
Change notifications
Email, Telegram, Slack, Discord or a webhook when something changes.
Shareable report link
Share a report or lock it behind a password.
Export
PDF, CSV or JSON — for a client or for your own records.
Custom domain
Serve audit reports from your own domain.
REST API
Trigger audits and pull results straight from your code.
Who is behind it

Built by a working engineer, not a marketing agency

id13dev does backend development and DevOps: OpenCart, WordPress, OkayCMS, VPS, Nginx, Redis, Docker. This tool grew out of daily work — the same issues had to be found by hand in client projects hundreds of times.

Technical findings, not «add more keywords»
Checks describe concrete things in code and on the server: canonical, indexability, compression, HTTP/2, HSTS, CSP, image sizes and formats.
Audits run from our own server
Neither your data nor the audited URLs are sent to third parties. Vendor telemetry and external CDNs were removed from the product.
Findings can be handed to a developer
Reports export to PDF, CSV or JSON — worded precisely enough to file as a task without translation.

Client reviews of id13dev

Real reviews from Freelancehunt — left after completed deals through escrow. None of the text was written by me.

99
positive reviews
10/10
average rating
98.02%
successful deals
Kuluarmaps ★ 10

не вперше звертаюсь миттєва реакція та професійна робота Рекомендую до співпраці!

Project: Оптимізувати максимально сайт на Вордпресі ·
Виталий Новицкий ★ 10

Чітко, професійно а головне швидко відновив роботу сайту. Хороший фахівець

Project: Ремонт сайта ·
Евгений Парфенов ★ 10

Робота виконана вискоякісно, виникли проблеми під час міграції які Євген оперативно пофіксив і виконав роботу в надзвичайно швидкий термін! Дуже рекомендую

Project: Запустити Odoo 19 на VPS і імпортувати базу данних ·
See all reviews on Freelancehunt

Tool or manual audit?

An automated check sees what can be read from the page code. The rest still has to be looked at by hand.

This service
Free
  • 50 technical and SEO checks per page
  • Results in seconds
  • Sitemap, URL list or pasted HTML
  • Scheduled re-checks and change notifications
  • Explanation and fix for every issue
Check a website
Manual audit by id13dev
Paid service
  • Root causes, not just symptoms
  • Server logs, load and database analysis
  • Core Web Vitals on real users, not a single page
  • Priorities based on your business and budget
  • Fixes done by a developer, not just a list
View the service

Frequently asked questions

No. You can audit a page right away — guests get 10 audits per month and results are kept for 3 days. An account removes those limits.

The technical state of the page: document markup, SEO tags and indexability, content quality, images, performance, connection security and links. The full list of checks is in the section above.

Yes, any publicly available page. Some sites block automated requests or sit behind bot protection — in that case the audit returns an error instead of a report.

From our server, as a single ordinary request, just like a browser. The page is not modified and audit data is not shared with anyone.

No, and no tool can promise that. An audit surfaces the technical problems that stop search engines from processing your page properly. Rankings also depend on content, links and competition.

Audits are stored so you can come back to them: 3 days for guests, then deleted automatically. Nothing is shared: the service runs on its own server, with vendor telemetry and third-party CDNs removed.

Start with issues marked as major — they affect the score most. Each one explains exactly what to change. The report exports to PDF, CSV or JSON and can be handed to a developer as a specification.

Guests get 40 of the 50 checks and 10 audits per month; results are kept for 3 days. The full set, change history, notifications and API come with an account — I issue those manually, write to help@id13.dev or Telegram @id13dev.

The tool checks what is visible in the page code: tags, markup, response headers, file sizes and formats. It cannot see causes — why the server responds slowly, what loads the database, how real users behave. That requires a manual audit with access to the server and analytics.

Found problems but no one to fix them?

id13dev — backend and DevOps: speeding up and maintaining OpenCart, WordPress and OkayCMS sites, server setup, and fixing the technical issues found here.

id13dev services
Technical SEO audit Core Web Vitals Site speed optimisation