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.
Accessibility · 16 Sep 2026
A page should normally expose one primary main landmark. NOTABIS reports duplicate-main-landmark when the measured HTML contains more than one literal <main> element.
Read guide →Accessibility · 16 Sep 2026
The HTML lang attribute declares a document’s primary language. NOTABIS records a passed check when a non-empty root language attribute is present, while Google determines language mainly from page text.
Read guide →Links · 16 Sep 2026
NOTABIS reports weak internal linking when exactly one crawled internal link record points to a non-homepage page. It is a low-severity prompt to review context, not a required link count.
Read guide →Crawlability · 16 Sep 2026
An accessible sitemap is a public XML file that an audit can fetch and parse as a valid urlset or sitemap index. NOTABIS records this as a passed availability check, not a guarantee of indexing.
Read guide →Crawlability · 16 Sep 2026
NOTABIS reports robots.txt unavailable when its request fails before a usable response can be processed. The finding concerns crawl-policy retrieval and does not by itself remove pages from search.
Read guide →Crawlability · 16 Sep 2026
A page-wide nofollow directive tells crawlers not to follow links from that response. NOTABIS checks robots meta and X-Robots-Tag directives, so the report is distinct from individual rel="nofollow" links.
Read guide →Crawlability · 16 Sep 2026
NOTABIS reports a deep crawl page when its measured shortest internal-link path is more than five levels from the submitted URL. Use the finding to review discoverability and site architecture.
Read guide →Content · 16 Sep 2026
A skipped heading level occurs when a page jumps from one heading level to a deeper level, such as H2 to H4. NOTABIS reports the measured sequence as a low-priority structure review.
Read guide →Technical SEO · 9 Sep 2026
A viewport declaration tells mobile browsers how to size and scale a page. Its presence is a baseline mobile-rendering check, not proof that a page is responsive or usable.
Read guide →Technical SEO · 9 Sep 2026
Redirects are often correct, but links should usually point directly to the final URL. NOTABIS reports when a crawled requested URL resolves somewhere else so you can review intent, chains, and internal links.
Read guide →Crawlability · 9 Sep 2026
A sitemap-unavailable finding means a declared sitemap could not be fetched or processed during the audit. Check the exact URL, response, content type, XML, redirects, and access controls before changing your site.
Read guide →Crawlability · 9 Sep 2026
A noindex directive asks compliant search crawlers not to include a page in search results. It is correct for many private or utility pages, but harmful when placed on a public page that should be discoverable.
Read guide →Performance · 9 Sep 2026
Large HTML can increase transfer and parsing work, but size alone does not prove a page is slow. NOTABIS flags responses over 500,000 bytes so you can inspect the content and delivery path.
Read guide →Performance · 9 Sep 2026
A slow response finding means the measured request took more than two seconds in that audit. Investigate server work, database calls, caching, network path, and load before choosing a fix.
Read guide →Performance · 9 Sep 2026
HTTP compression reduces transfer size for compressible responses. NOTABIS flags HTML responses that did not advertise Content-Encoding, but the finding is a review signal rather than a complete performance diagnosis.
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