NOTABIS SEO / LEARN
Practical guides for the SEO findings NOTABIS measures. Learn what an issue means, how to verify it, when it is intentional, and how to fix it safely.
Site health · 16 Sep 2026
An unavailable llms.txt result means the optional /llms.txt resource returned an error or could not be fetched. NOTABIS keeps this informational and does not treat it as an SEO defect.
Read guide →Site health · 16 Sep 2026
NOTABIS passes llms-txt-accessible when a GET request to /llms.txt returns below HTTP 400. The optional file is an emerging proposal, not a Google ranking or indexing requirement.
Read guide →Site health · 16 Sep 2026
NOTABIS reports an HSTS review when a sampled final HTTPS response has no non-empty Strict-Transport-Security header. It is a security diagnostic outside the SEO score.
Read guide →Images · 16 Sep 2026
NOTABIS flags image URLs ending in JPEG, PNG, or GIF extensions as a low-priority format review. Modern formats may reduce bytes, but conversion depends on quality, transparency, animation, and support needs.
Read guide →Performance · 16 Sep 2026
A duplicate resource is an image, script, or stylesheet URL referenced more than once in one measured HTML page. NOTABIS ignores the normal preload-plus-stylesheet pair and reports other repeats for review.
Read guide →Technical SEO · 16 Sep 2026
A fetch failure means NOTABIS could not complete a queued URL request after its request attempts ended in an exception. It is distinct from a received HTTP error or edge challenge.
Read guide →Crawlability · 16 Sep 2026
An edge-blocked audit received a firewall, CDN, WAF, or anti-bot response instead of the site page. NOTABIS recognises selected 403/429 and challenge responses, then stops normal scoring.
Read guide →Technical SEO · 16 Sep 2026
NOTABIS reports charset-missing when measured HTML has neither a meta charset nor an http-equiv content-type declaration. Check the server header and actual bytes as well.
Read guide →Technical SEO · 16 Sep 2026
Mixed content is an HTTPS page that references an HTTP resource. NOTABIS scans src and href attributes for absolute HTTP values and records the references it finds.
Read guide →Technical SEO · 16 Sep 2026
NOTABIS reports a meta-refresh element in measured HTML. Use a direct server redirect for URL moves when possible, and reserve refreshes for cases with a clear user-facing reason.
Read guide →Technical SEO · 16 Sep 2026
NOTABIS reports canonical-redirect-conflict when a page’s measured canonical differs from the URL reached after redirects. Align the final URL, canonical, links, and sitemap where appropriate.
Read guide →Technical SEO · 16 Sep 2026
NOTABIS flags a canonical that resolves to a different origin from the audited site. Cross-origin canonicals can be deliberate, but they need a clear consolidation reason.
Read guide →Technical SEO · 16 Sep 2026
NOTABIS reports multiple-canonical-tags when a measured page contains more than one canonical link element. Remove accidental duplicates and verify the surviving target.
Read guide →Crawlability · 16 Sep 2026
NOTABIS reviews URLs longer than 2,000 characters or with more than five query parameters. These are diagnostic thresholds, not universal SEO limits; inspect the purpose and canonical strategy of each variant.
Read guide →Technical SEO · 16 Sep 2026
The no-pages finding means an audit measured no crawlable HTML pages and was not classified as edge-blocked. Investigate access, routing, responses, authentication, and robots policy before drawing SEO conclusions.
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