90
SEO audit for redcourt.at
Advantage RedCourt - Der Allwetter Tennisbelag
Health 90/100 (excellent) · 50 pages crawled · generated 2026-08-26
Download Markdown report (feed to ChatGPT / Claude / Cursor)Advantage RedCourt Tennisbelag ist unser bester Outdoor-Belag für Ihren Allwetter-Tennisplatz. Ihr Spezialist für Tennisplatzbau seit 30 Jahren.
50
pages crawled
8
indexable pages
0
errors
14
warnings
123
notices
0
orphan pages
0
broken links
Category breakdown
| Category | Score | Errors | Warnings | Notices |
|---|---|---|---|---|
| Structured Data | 95 | 0 | 8 | 1 |
| Images | 97 | 0 | 5 | 5 |
| Headings | 99 | 0 | 1 | 4 |
| Agent Readiness | 100 | 0 | 0 | 16 |
| Content | 100 | 0 | 0 | 8 |
| Links | 100 | 0 | 0 | 8 |
| Performance | 100 | 0 | 0 | 24 |
| Security | 100 | 0 | 0 | 16 |
| URL | 100 | 0 | 0 | 41 |
Findings
Warnings (3 rules)
warning Images missing alt text
Rule images.missing_alt · Images · 5 occurrence(s)
- https://redcourt.at/ — 35 of 51 images missing alt
- https://redcourt.at/redcourt-eigenschaften/ — 34 of 50 images missing alt
- https://redcourt.at/redcourt-plaetze/ — 34 of 39 images missing alt
- https://redcourt.at/redcourt-untergrund/ — 34 of 40 images missing alt
- https://redcourt.at/tennisplatzbau/ — 34 of 39 images missing alt
warning Rich-result schema missing required properties
Rule schema.invalid · Structured Data · 8 occurrence(s)
- https://redcourt.at/ — Organization missing: url
- https://redcourt.at/faq/ — Organization missing: url
- https://redcourt.at/impressum/ — Organization missing: url
- https://redcourt.at/kontakt/ — Organization missing: url
- https://redcourt.at/redcourt-eigenschaften/ — Organization missing: url
- https://redcourt.at/redcourt-plaetze/ — Organization missing: url
- https://redcourt.at/redcourt-untergrund/ — Organization missing: url
- https://redcourt.at/tennisplatzbau/ — Organization missing: url
Notices (15 rules)
notice Heading levels skip a level
Rule agent.heading_skip · Agent Readiness · 7 occurrence(s)
- https://redcourt.at/ — h4 follows h2 — skips h3
- https://redcourt.at/faq/ — h5 follows h2 — skips h3
- https://redcourt.at/impressum/ — h4 follows h2 — skips h3
- https://redcourt.at/redcourt-eigenschaften/ — h4 follows h2 — skips h3
- https://redcourt.at/redcourt-plaetze/ — h4 follows h2 — skips h3
- https://redcourt.at/redcourt-untergrund/ — h4 follows h1 — skips h2
- https://redcourt.at/tennisplatzbau/ — h4 follows h2 — skips h3
notice No llms.txt for AI agents
Rule agent.llms_txt_missing · Agent Readiness · 1 occurrence(s)
- https://redcourt.at/ — no llms.txt found at the site root — add one so AI agents get a curated site summary
notice No main landmark for AI agents
Rule agent.no_main_landmark · Agent Readiness · 8 occurrence(s)
- https://redcourt.at/ — add a <main> element (or role=main) around the primary content
- https://redcourt.at/faq/ — add a <main> element (or role=main) around the primary content
- https://redcourt.at/impressum/ — add a <main> element (or role=main) around the primary content
- https://redcourt.at/kontakt/ — add a <main> element (or role=main) around the primary content
- https://redcourt.at/redcourt-eigenschaften/ — add a <main> element (or role=main) around the primary content
- https://redcourt.at/redcourt-plaetze/ — add a <main> element (or role=main) around the primary content
- https://redcourt.at/redcourt-untergrund/ — add a <main> element (or role=main) around the primary content
- https://redcourt.at/tennisplatzbau/ — add a <main> element (or role=main) around the primary content
notice Low text-to-HTML ratio
Rule content.low_ratio · Content · 8 occurrence(s)
- https://redcourt.at/ — 2.4%
- https://redcourt.at/faq/ — 3.2%
- https://redcourt.at/impressum/ — 4.0%
- https://redcourt.at/kontakt/ — 3.0%
- https://redcourt.at/redcourt-eigenschaften/ — 2.4%
- https://redcourt.at/redcourt-plaetze/ — 2.1%
- https://redcourt.at/redcourt-untergrund/ — 2.2%
- https://redcourt.at/tennisplatzbau/ — 2.2%
notice Multiple <h1> elements
Rule h1.multiple · Headings · 4 occurrence(s)
- https://redcourt.at/ — 2 <h1> elements
- https://redcourt.at/faq/ — 2 <h1> elements
- https://redcourt.at/redcourt-eigenschaften/ — 2 <h1> elements
- https://redcourt.at/redcourt-untergrund/ — 2 <h1> elements
notice Image filename is generic/auto-generated (missed image-search signal)
Rule images.generic_filename · Images · 5 occurrence(s)
- https://redcourt.at/ — 3 image(s) use a generic/auto-generated filename (e.g. IMG_1234.jpg, photo1.png, a bare UUID). Google reads the filename as a signal of image content, so rename files descriptively (hyphen-separated words) before upload.
- https://redcourt.at/redcourt-eigenschaften/ — 3 image(s) use a generic/auto-generated filename (e.g. IMG_1234.jpg, photo1.png, a bare UUID). Google reads the filename as a signal of image content, so rename files descriptively (hyphen-separated words) before upload.
- https://redcourt.at/redcourt-plaetze/ — 1 image(s) use a generic/auto-generated filename (e.g. IMG_1234.jpg, photo1.png, a bare UUID). Google reads the filename as a signal of image content, so rename files descriptively (hyphen-separated words) before upload.
- https://redcourt.at/redcourt-untergrund/ — 1 image(s) use a generic/auto-generated filename (e.g. IMG_1234.jpg, photo1.png, a bare UUID). Google reads the filename as a signal of image content, so rename files descriptively (hyphen-separated words) before upload.
- https://redcourt.at/tennisplatzbau/ — 1 image(s) use a generic/auto-generated filename (e.g. IMG_1234.jpg, photo1.png, a bare UUID). Google reads the filename as a signal of image content, so rename files descriptively (hyphen-separated words) before upload.
notice Likely hero image lacks fetchpriority=high
Rule images.hero_no_fetchpriority · Performance · 8 occurrence(s)
- https://redcourt.at/ — the likely hero/LCP image (redcourt_logo.png) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
- https://redcourt.at/faq/ — the likely hero/LCP image (redcourt_logo.png) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
- https://redcourt.at/impressum/ — the likely hero/LCP image (redcourt_logo.png) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
- https://redcourt.at/kontakt/ — the likely hero/LCP image (redcourt_logo.png) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
- https://redcourt.at/redcourt-eigenschaften/ — the likely hero/LCP image (redcourt_logo.png) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
- https://redcourt.at/redcourt-plaetze/ — the likely hero/LCP image (redcourt_logo.png) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
- https://redcourt.at/redcourt-untergrund/ — the likely hero/LCP image (redcourt_logo.png) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
- https://redcourt.at/tennisplatzbau/ — the likely hero/LCP image (redcourt_logo.png) has no fetchpriority="high" — adding it tells the browser to fetch the hero earlier in the waterfall, reducing Largest Contentful Paint. This is a low-severity nudge; verify the flagged image is actually your LCP element.
notice Internal link has no anchor text / accessible name
Rule links.no_anchor_text · Links · 8 occurrence(s)
- https://redcourt.at/ — 47 internal link(s) have no anchor text, aria-label, or image alt — they pass no keyword signal and are unusable to screen readers. Add descriptive text or an aria-label.
- https://redcourt.at/faq/ — 2 internal link(s) have no anchor text, aria-label, or image alt — they pass no keyword signal and are unusable to screen readers. Add descriptive text or an aria-label.
- https://redcourt.at/impressum/ — 2 internal link(s) have no anchor text, aria-label, or image alt — they pass no keyword signal and are unusable to screen readers. Add descriptive text or an aria-label.
- https://redcourt.at/kontakt/ — 2 internal link(s) have no anchor text, aria-label, or image alt — they pass no keyword signal and are unusable to screen readers. Add descriptive text or an aria-label.
- https://redcourt.at/redcourt-eigenschaften/ — 46 internal link(s) have no anchor text, aria-label, or image alt — they pass no keyword signal and are unusable to screen readers. Add descriptive text or an aria-label.
- https://redcourt.at/redcourt-plaetze/ — 36 internal link(s) have no anchor text, aria-label, or image alt — they pass no keyword signal and are unusable to screen readers. Add descriptive text or an aria-label.
- https://redcourt.at/redcourt-untergrund/ — 36 internal link(s) have no anchor text, aria-label, or image alt — they pass no keyword signal and are unusable to screen readers. Add descriptive text or an aria-label.
- https://redcourt.at/tennisplatzbau/ — 36 internal link(s) have no anchor text, aria-label, or image alt — they pass no keyword signal and are unusable to screen readers. Add descriptive text or an aria-label.
notice Legacy image format (jpg/png/gif) with no next-gen fallback
Rule perf.images_legacy_format · Performance · 8 occurrence(s)
- https://redcourt.at/ — 51 image(s) use a legacy format (jpg/png/gif) with no next-gen <picture> fallback. Serve WebP or AVIF (with a <picture> typed <source>) to cut image transfer weight and improve LCP.
- https://redcourt.at/faq/ — 8 image(s) use a legacy format (jpg/png/gif) with no next-gen <picture> fallback. Serve WebP or AVIF (with a <picture> typed <source>) to cut image transfer weight and improve LCP.
- https://redcourt.at/impressum/ — 4 image(s) use a legacy format (jpg/png/gif) with no next-gen <picture> fallback. Serve WebP or AVIF (with a <picture> typed <source>) to cut image transfer weight and improve LCP.
- https://redcourt.at/kontakt/ — 5 image(s) use a legacy format (jpg/png/gif) with no next-gen <picture> fallback. Serve WebP or AVIF (with a <picture> typed <source>) to cut image transfer weight and improve LCP.
- https://redcourt.at/redcourt-eigenschaften/ — 50 image(s) use a legacy format (jpg/png/gif) with no next-gen <picture> fallback. Serve WebP or AVIF (with a <picture> typed <source>) to cut image transfer weight and improve LCP.
- https://redcourt.at/redcourt-plaetze/ — 39 image(s) use a legacy format (jpg/png/gif) with no next-gen <picture> fallback. Serve WebP or AVIF (with a <picture> typed <source>) to cut image transfer weight and improve LCP.
- https://redcourt.at/redcourt-untergrund/ — 40 image(s) use a legacy format (jpg/png/gif) with no next-gen <picture> fallback. Serve WebP or AVIF (with a <picture> typed <source>) to cut image transfer weight and improve LCP.
- https://redcourt.at/tennisplatzbau/ — 39 image(s) use a legacy format (jpg/png/gif) with no next-gen <picture> fallback. Serve WebP or AVIF (with a <picture> typed <source>) to cut image transfer weight and improve LCP.
notice No ETag header (no conditional GET for unchanged pages)
Rule perf.no_etag · Performance · 8 occurrence(s)
- https://redcourt.at/ — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests.
- https://redcourt.at/faq/ — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests.
- https://redcourt.at/impressum/ — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests.
- https://redcourt.at/kontakt/ — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests.
- https://redcourt.at/redcourt-eigenschaften/ — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests.
- https://redcourt.at/redcourt-plaetze/ — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests.
- https://redcourt.at/redcourt-untergrund/ — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests.
- https://redcourt.at/tennisplatzbau/ — the response carries no ETag header — without an ETag (or Last-Modified) there is no cache-revalidation mechanism, so crawlers re-download the full body every visit. Emit an ETag (a content hash) to enable conditional If-None-Match requests.
notice Deprecated schema type with no Google rich result
Rule schema.deprecated_type · Structured Data · 1 occurrence(s)
- https://redcourt.at/ — deprecated rich-result type(s) present: Sitelinks Searchbox. The markup is valid schema.org but Google no longer generates a rich result for it — remove or repurpose the block.
notice Missing recommended security headers
Rule security.missing_headers · Security · 8 occurrence(s)
- https://redcourt.at/ — CSP, X-Content-Type-Options, HSTS
- https://redcourt.at/faq/ — HSTS, CSP, X-Content-Type-Options
- https://redcourt.at/impressum/ — X-Content-Type-Options, HSTS, CSP
- https://redcourt.at/kontakt/ — HSTS, CSP, X-Content-Type-Options
- https://redcourt.at/redcourt-eigenschaften/ — X-Content-Type-Options, HSTS, CSP
- https://redcourt.at/redcourt-plaetze/ — HSTS, CSP, X-Content-Type-Options
- https://redcourt.at/redcourt-untergrund/ — X-Content-Type-Options, HSTS, CSP
- https://redcourt.at/tennisplatzbau/ — HSTS, CSP, X-Content-Type-Options
notice target=_blank link without rel=noopener (tab-napping)
Rule security.unsafe_cross_origin_links · Security · 8 occurrence(s)
- https://redcourt.at/ — 4 external link(s) use target="_blank" without rel="noopener" — the opened page can hijack your tab (reverse tab-napping). Add rel="noopener noreferrer".
- https://redcourt.at/faq/ — 4 external link(s) use target="_blank" without rel="noopener" — the opened page can hijack your tab (reverse tab-napping). Add rel="noopener noreferrer".
- https://redcourt.at/impressum/ — 4 external link(s) use target="_blank" without rel="noopener" — the opened page can hijack your tab (reverse tab-napping). Add rel="noopener noreferrer".
- https://redcourt.at/kontakt/ — 4 external link(s) use target="_blank" without rel="noopener" — the opened page can hijack your tab (reverse tab-napping). Add rel="noopener noreferrer".
- https://redcourt.at/redcourt-eigenschaften/ — 4 external link(s) use target="_blank" without rel="noopener" — the opened page can hijack your tab (reverse tab-napping). Add rel="noopener noreferrer".
- https://redcourt.at/redcourt-plaetze/ — 4 external link(s) use target="_blank" without rel="noopener" — the opened page can hijack your tab (reverse tab-napping). Add rel="noopener noreferrer".
- https://redcourt.at/redcourt-untergrund/ — 4 external link(s) use target="_blank" without rel="noopener" — the opened page can hijack your tab (reverse tab-napping). Add rel="noopener noreferrer".
- https://redcourt.at/tennisplatzbau/ — 4 external link(s) use target="_blank" without rel="noopener" — the opened page can hijack your tab (reverse tab-napping). Add rel="noopener noreferrer".
notice Underscores in URL path (prefer hyphens)
Rule url.underscores · URL · 7 occurrence(s)
- https://redcourt.at/wp-content/uploads/2024/05/RedCourt_1.jpg
- https://redcourt.at/wp-content/uploads/2024/05/RedCourt_Tannheim_A_1.jpg
- https://redcourt.at/wp-content/uploads/2024/06/RedCourt_St_Poelten_A.jpg
- https://redcourt.at/wp-content/uploads/2024/09/IMG_1339.jpg
- https://redcourt.at/wp-content/uploads/2025/01/20200417_135155.jpg
- https://redcourt.at/wp-content/uploads/2025/01/IMG_0510.jpg
- https://redcourt.at/wp-content/uploads/2025/01/SCHWEIZ-TC-Mosnang_2021.jpg
notice Uppercase letters in URL path
Rule url.uppercase · URL · 34 occurrence(s)
- https://redcourt.at/wp-content/uploads/2024/05/RedCourt_1.jpg
- https://redcourt.at/wp-content/uploads/2024/05/RedCourt_Tannheim_A_1.jpg
- https://redcourt.at/wp-content/uploads/2024/06/RedCourt.jpg
- https://redcourt.at/wp-content/uploads/2024/06/RedCourt_St_Poelten_A.jpg
- https://redcourt.at/wp-content/uploads/2025/01/Aldiana-Ampfwang.jpg
- https://redcourt.at/wp-content/uploads/2025/01/Aldrans.jpg
- https://redcourt.at/wp-content/uploads/2025/01/ESV-Wels-1.jpg
- https://redcourt.at/wp-content/uploads/2025/01/ESV-Wels.jpg
- https://redcourt.at/wp-content/uploads/2025/01/Flachau.jpg
- https://redcourt.at/wp-content/uploads/2025/01/Fliess-1.jpg
- https://redcourt.at/wp-content/uploads/2025/01/Fliess.jpg
- https://redcourt.at/wp-content/uploads/2025/01/Fliess1.jpg
- https://redcourt.at/wp-content/uploads/2025/01/Fliess2.jpg
- https://redcourt.at/wp-content/uploads/2025/01/Gars-am-Kamp.jpg
- https://redcourt.at/wp-content/uploads/2025/01/Grossschoenau-1.jpg
- https://redcourt.at/wp-content/uploads/2025/01/Grossschoenau-2.jpg
- https://redcourt.at/wp-content/uploads/2025/01/Gunskirchen1.jpg
- https://redcourt.at/wp-content/uploads/2025/01/IMG_0510.jpg
- https://redcourt.at/wp-content/uploads/2025/01/Kaltbrunn-1.jpg
- https://redcourt.at/wp-content/uploads/2025/01/Kaltbrunn-2.jpg
- https://redcourt.at/wp-content/uploads/2025/01/Nassereith.jpg
- https://redcourt.at/wp-content/uploads/2025/01/SCHWEIZ-TC-Mosnang_2021.jpg
- https://redcourt.at/wp-content/uploads/2025/01/St.jpg
- https://redcourt.at/wp-content/uploads/2025/01/Uttendorf-1.jpg
- https://redcourt.at/wp-content/uploads/2025/01/Uttendorf-2.jpg
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