Fixes ranked by impact, and the flags you can leave alone.
Use this online SEO checker to audit any page for search engines and AI search.
Part of SEO automation
Paste the URL of the page you want to check.
Check SEOThe SEO checker opens SpringBrand with your request. Each run spends credits from your balance.
What the audit returnsRuns in SpringBrandAfter you sign in or create an account, the SEO checker reads the page, runs an SEO page audit and returns a score, the issues ranked by impact and the checks that passed.
START WITH A REQUEST
Each card is a real question people ask. Add the page you care about and the SEO checker opens it in SpringBrand.
A score, the issues ranked by impact and the checks that passed, with notes on flags you can leave alone.
Question My SEO checker flags hundreds of errors. Are they all real problems?
The robots.txt rules for each named AI crawler, allowed or blocked, and whether the site publishes an llms.txt file.
Question Can an SEO checker tell me whether GPTBot and other AI crawlers can read my site?
The page's score with the issues ranked by impact, so you can see where it loses points.
Question What is a good SEO score out of 100?
WHAT YOU GET
A website SEO checker reads the same things a search engine reads first. The page audit groups them into a few areas and scores each one, so you can see where the page loses points instead of scrolling through a flat list of warnings.
01 / ON THE PAGE
Title and meta description: whether they exist, how long they are and whether they describe the page someone searched for.
Headings and structure: one H1, a heading outline that follows the content, and sections a reader or AI answer can quote.
Title and meta description
One H1
Heading outline and quotable sections
02 / LINKS AND SPEED
Links and images: internal and external links, broken links and image alt text, with decorative images told apart from missing descriptions.
Speed signals: Core Web Vitals and the page weight that slows a first visit, reported as signals to check rather than a verdict. When we checked our own homepage on 2026-11-13, 80 of its 81 images have an empty alt attribute (alt=""). A rule that only counts empty alt text reports 80 problems. In fact they are decorative images, and an empty alt is the correct way to tell screen readers to skip them; none of the 81 images is missing the attribute.
Internal, external and broken links
Image alt text, decorative images told apart
Core Web Vitals and page weight
03 / CRAWLERS
Crawl rules: robots.txt, canonical tags and noindex rules that decide whether the page can be found at all. AI search tools can only quote a page their crawlers are allowed to read. Your robots.txt decides that, one user agent at a time.
AI crawler access: whether GPTBot, ClaudeBot, PerplexityBot and Google-Extended are allowed in, and whether the site publishes an llms.txt file. Ask the checker to read your robots.txt and it will tell you which of these crawlers are allowed or blocked. Allowing a crawler does not mean an AI answer will mention you. To see where Google AI Overviews already cite your pages, use the AI visibility tracker. Our own robots.txt names GPTBot, OAI-SearchBot, ChatGPT-User, ClaudeBot, PerplexityBot and Google-Extended individually and allows each of them, and the site publishes an llms.txt file.
robots.txt, canonical and noindex
GPTBot, ClaudeBot, PerplexityBot, Google-Extended
llms.txt published or not
04 / THE SCORE
A score is a summary of the checks, not a measure of how well the page ranks. A page can score high and still lose traffic, and a page with known, deliberate warnings can rank well.
Use the score to decide where to look first, then read the ranked fixes.
A summary of the checks
Where the page loses points
Then the ranked fixes
SEO checkers count issues, and many of those issues are deliberate choices: decorative images with empty alt text, pages you noindex on purpose, redirects you set up yourself. That is why the page audit ranks fixes by impact and says which flags you can leave alone.
Checked on
Practitioners see the same pattern on full site audits. One wrote after cleaning up a crawl that most of what was left was intentional.
“Site Audit: 174 errors down to 15, and the 15 are on purpose.”
No. A page can score high and still lose traffic. One practitioner put it plainly.
“We are not treating Lighthouse scores as proof that CWV is resolved”
Source: r/SEO: Discover traffic collapsed while web search grew
Most online SEO checkers limit how many checks you can run a day and point you to a paid audit for the full site. The table compares what each tool's own page says about no-cost checks, sign-up and AI search checks. Where a page did not say, we wrote that instead of guessing.
| Checker | No-cost checks | Sign-up | AI crawler or llms.txt checks | Use from Claude Code (MCP) |
|---|---|---|---|---|
| SpringBrand | 100 credits a month at no cost; each check spends credits | SpringBrand account, no card | Yes, robots.txt rules for named AI crawlers and llms.txt | Yes, in Claude Code, Codex and Cursor |
| Backlinko SEO Checker | Three no-cost checks a day | No signup | Not stated on the page | Not stated on the page |
| Seobility SEO Checker | Basic: 5 checks a day; Premium: 50 a day ($69.90/mo) | Account required for the Basic limit | Not stated on the page | MCP listed as Beta in the site navigation |
| SEO Site Checkup | One website check a day; 7-day trial | Not stated on the page | Markets LLM visibility checks | Not stated on the page |
| Semrush Site Audit | No-cost check; full Site Audit on a 7-day trial | Account for the trial | Reports AI Search Health | Not stated on the page |
Checked 2026-11-13 from each tool's public page. "Not stated" means the page did not say, not that the feature is missing. Prices are the vendors' published monthly prices in USD.
A FEW THINGS TO KNOW