--- tool: Crawlinx SEO audit source: https://crawlinx.com domain: stackblitz.com report_url: "https://crawlinx.com/audit/stackblitz.com" crawl_id: 20260711T010025-784eb33d health_score: 67 generated_at: 2026-07-11T15:41:31Z total_pages: 13 html_pages: 13 indexable_pages: 13 errors: 0 warnings: 24 notices: 59 --- # SEO audit: stackblitz.com **Health score: 67/100** — needs attention > Audited by [Crawlinx](https://crawlinx.com) — the free technical-SEO crawler. Full report: https://crawlinx.com/audit/stackblitz.com ## Overview | Metric | Value | | --- | --- | | Pages crawled | 13 | | HTML pages | 13 | | Indexable | 13 | | Non-indexable | 0 | | Orphan pages | 0 | | Broken internal links | 0 | | Avg response time | 972 ms | | Errors / Warnings / Notices | 0 / 24 / 59 | | Status codes | 13×200 | ## Categories | Category | Score | Errors | Warnings | Notices | | --- | ---: | ---: | ---: | ---: | | Links | 75 | 0 | 11 | 0 | | Content | 91 | 0 | 4 | 5 | | Headings | 91 | 0 | 4 | 1 | | Titles | 93 | 0 | 3 | 0 | | Canonical | 98 | 0 | 1 | 0 | | Meta Description | 98 | 0 | 1 | 9 | | Cache | 100 | 0 | 0 | 2 | | Crawlability | 100 | 0 | 0 | 1 | | Duplicate | 100 | 0 | 0 | 9 | | Images | 100 | 0 | 0 | 3 | | Security | 100 | 0 | 0 | 13 | | Social | 100 | 0 | 0 | 2 | | Structured Data | 100 | 0 | 0 | 13 | | URL | 100 | 0 | 0 | 1 | ## Issues ### Warnings (24) #### Missing canonical tag - Rule: `canonical.missing` · Category: Canonical · Occurrences: 1 - [https://stackblitz.com/sign_in](https://stackblitz.com/sign_in) #### Thin content (low word count) - Rule: `content.thin` · Category: Content · Occurrences: 4 - [https://stackblitz.com/case-studies](https://stackblitz.com/case-studies) — 92 words - [https://stackblitz.com/enterprise-contact](https://stackblitz.com/enterprise-contact) — 79 words - [https://stackblitz.com/integrations](https://stackblitz.com/integrations) — 195 words - [https://stackblitz.com/sign_in](https://stackblitz.com/sign_in) — 0 words #### Missing

- Rule: `h1.missing` · Category: Headings · Occurrences: 4 - [https://stackblitz.com/pricing](https://stackblitz.com/pricing) - [https://stackblitz.com/privacy-policy](https://stackblitz.com/privacy-policy) - [https://stackblitz.com/sign_in](https://stackblitz.com/sign_in) - [https://stackblitz.com/terms-of-service](https://stackblitz.com/terms-of-service) #### Internal link points to a redirect - Rule: `links.redirect_target` · Category: Links · Occurrences: 11 - [https://stackblitz.com/](https://stackblitz.com/) — https://stackblitz.com/careers → https://bolt.new/careers - [https://stackblitz.com/case-studies](https://stackblitz.com/case-studies) — https://stackblitz.com/careers → https://bolt.new/careers - [https://stackblitz.com/case-studies/google](https://stackblitz.com/case-studies/google) — https://stackblitz.com/careers → https://bolt.new/careers - [https://stackblitz.com/case-studies/surescripts](https://stackblitz.com/case-studies/surescripts) — https://stackblitz.com/careers → https://bolt.new/careers - [https://stackblitz.com/design-systems](https://stackblitz.com/design-systems) — https://stackblitz.com/careers → https://bolt.new/careers - [https://stackblitz.com/enterprise](https://stackblitz.com/enterprise) — https://stackblitz.com/careers → https://bolt.new/careers - [https://stackblitz.com/enterprise-contact](https://stackblitz.com/enterprise-contact) — https://stackblitz.com/careers → https://bolt.new/careers - [https://stackblitz.com/integrations](https://stackblitz.com/integrations) — https://stackblitz.com/careers → https://bolt.new/careers - [https://stackblitz.com/pricing](https://stackblitz.com/pricing) — https://stackblitz.com/careers → https://bolt.new/careers - [https://stackblitz.com/privacy-policy](https://stackblitz.com/privacy-policy) — https://stackblitz.com/careers → https://bolt.new/careers - [https://stackblitz.com/terms-of-service](https://stackblitz.com/terms-of-service) — https://stackblitz.com/careers → https://bolt.new/careers #### Missing meta description - Rule: `meta_desc.missing` · Category: Meta Description · Occurrences: 1 - [https://stackblitz.com/sign_in](https://stackblitz.com/sign_in) #### Title likely truncated in SERP (too wide) - Rule: `title.too_long` · Category: Titles · Occurrences: 3 - [https://stackblitz.com/case-studies/google](https://stackblitz.com/case-studies/google) — 141 chars, ~1065px (limit ~580px) - [https://stackblitz.com/case-studies/surescripts](https://stackblitz.com/case-studies/surescripts) — 154 chars, ~1188px (limit ~580px) - [https://stackblitz.com/enterprise-contact](https://stackblitz.com/enterprise-contact) — 79 chars, ~584px (limit ~580px) ### Notices (59) #### Page served uncached (no-store/private or CDN bypass) - Rule: `cache.not_cacheable` · Category: Cache · Occurrences: 2 - [https://stackblitz.com/careers](https://stackblitz.com/careers) — Cache-Control: no-store · cloudflare: DYNAMIC - [https://stackblitz.com/sign_in](https://stackblitz.com/sign_in) — Cache-Control: max-age=0, private, must-revalidate · cdn: MISS #### Low text-to-HTML ratio - Rule: `content.low_ratio` · Category: Content · Occurrences: 5 - [https://stackblitz.com/careers](https://stackblitz.com/careers) — 3.8% - [https://stackblitz.com/case-studies](https://stackblitz.com/case-studies) — 4.5% - [https://stackblitz.com/design-systems](https://stackblitz.com/design-systems) — 4.4% - [https://stackblitz.com/enterprise](https://stackblitz.com/enterprise) — 4.4% - [https://stackblitz.com/enterprise-contact](https://stackblitz.com/enterprise-contact) — 3.7% #### Duplicate meta description across pages - Rule: `duplicate.meta_desc` · Category: Duplicate · Occurrences: 9 - [https://stackblitz.com/](https://stackblitz.com/) — meta description shared by 9 pages: https://stackblitz.com/integrations, https://stackblitz.com/case-studies, https://stackblitz.com/pricing - [https://stackblitz.com/case-studies](https://stackblitz.com/case-studies) — meta description shared by 9 pages: https://stackblitz.com/, https://stackblitz.com/integrations, https://stackblitz.com/pricing - [https://stackblitz.com/case-studies/google](https://stackblitz.com/case-studies/google) — meta description shared by 9 pages: https://stackblitz.com/, https://stackblitz.com/integrations, https://stackblitz.com/case-studies - [https://stackblitz.com/case-studies/surescripts](https://stackblitz.com/case-studies/surescripts) — meta description shared by 9 pages: https://stackblitz.com/, https://stackblitz.com/integrations, https://stackblitz.com/case-studies - [https://stackblitz.com/enterprise-contact](https://stackblitz.com/enterprise-contact) — meta description shared by 9 pages: https://stackblitz.com/, https://stackblitz.com/integrations, https://stackblitz.com/case-studies - [https://stackblitz.com/integrations](https://stackblitz.com/integrations) — meta description shared by 9 pages: https://stackblitz.com/, https://stackblitz.com/case-studies, https://stackblitz.com/pricing - [https://stackblitz.com/pricing](https://stackblitz.com/pricing) — meta description shared by 9 pages: https://stackblitz.com/, https://stackblitz.com/integrations, https://stackblitz.com/case-studies - [https://stackblitz.com/privacy-policy](https://stackblitz.com/privacy-policy) — meta description shared by 9 pages: https://stackblitz.com/, https://stackblitz.com/integrations, https://stackblitz.com/case-studies - [https://stackblitz.com/terms-of-service](https://stackblitz.com/terms-of-service) — meta description shared by 9 pages: https://stackblitz.com/, https://stackblitz.com/integrations, https://stackblitz.com/case-studies #### Multiple

elements - Rule: `h1.multiple` · Category: Headings · Occurrences: 1 - [https://stackblitz.com/](https://stackblitz.com/) — 2

elements #### Images without width/height (layout shift / CLS) - Rule: `images.missing_dimensions` · Category: Images · Occurrences: 3 - [https://stackblitz.com/](https://stackblitz.com/) — 2 of 13 images without width/height - [https://stackblitz.com/careers](https://stackblitz.com/careers) — 34 of 39 images without width/height - [https://stackblitz.com/case-studies](https://stackblitz.com/case-studies) — 2 of 3 images without width/height #### Meta description too long - Rule: `meta_desc.too_long` · Category: Meta Description · Occurrences: 9 - [https://stackblitz.com/](https://stackblitz.com/) — 172 chars - [https://stackblitz.com/case-studies](https://stackblitz.com/case-studies) — 172 chars - [https://stackblitz.com/case-studies/google](https://stackblitz.com/case-studies/google) — 172 chars - [https://stackblitz.com/case-studies/surescripts](https://stackblitz.com/case-studies/surescripts) — 172 chars - [https://stackblitz.com/enterprise-contact](https://stackblitz.com/enterprise-contact) — 172 chars - [https://stackblitz.com/integrations](https://stackblitz.com/integrations) — 172 chars - [https://stackblitz.com/pricing](https://stackblitz.com/pricing) — 172 chars - [https://stackblitz.com/privacy-policy](https://stackblitz.com/privacy-policy) — 172 chars - [https://stackblitz.com/terms-of-service](https://stackblitz.com/terms-of-service) — 172 chars #### Missing Open Graph tags - Rule: `og.missing` · Category: Social · Occurrences: 1 - [https://stackblitz.com/sign_in](https://stackblitz.com/sign_in) — og:description #### URL redirects to another URL - Rule: `redirect.single` · Category: Crawlability · Occurrences: 1 - [https://stackblitz.com/careers](https://stackblitz.com/careers) — redirects to https://bolt.new/careers #### No structured data detected - Rule: `schema.none` · Category: Structured Data · Occurrences: 13 - [https://stackblitz.com/](https://stackblitz.com/) - [https://stackblitz.com/careers](https://stackblitz.com/careers) - [https://stackblitz.com/case-studies](https://stackblitz.com/case-studies) - [https://stackblitz.com/case-studies/google](https://stackblitz.com/case-studies/google) - [https://stackblitz.com/case-studies/surescripts](https://stackblitz.com/case-studies/surescripts) - [https://stackblitz.com/design-systems](https://stackblitz.com/design-systems) - [https://stackblitz.com/enterprise](https://stackblitz.com/enterprise) - [https://stackblitz.com/enterprise-contact](https://stackblitz.com/enterprise-contact) - [https://stackblitz.com/integrations](https://stackblitz.com/integrations) - [https://stackblitz.com/pricing](https://stackblitz.com/pricing) - [https://stackblitz.com/privacy-policy](https://stackblitz.com/privacy-policy) - [https://stackblitz.com/sign_in](https://stackblitz.com/sign_in) - [https://stackblitz.com/terms-of-service](https://stackblitz.com/terms-of-service) #### Missing recommended security headers - Rule: `security.missing_headers` · Category: Security · Occurrences: 13 - [https://stackblitz.com/](https://stackblitz.com/) — HSTS, CSP - [https://stackblitz.com/careers](https://stackblitz.com/careers) — CSP, X-Content-Type-Options - [https://stackblitz.com/case-studies](https://stackblitz.com/case-studies) — HSTS, CSP - [https://stackblitz.com/case-studies/google](https://stackblitz.com/case-studies/google) — HSTS, CSP - [https://stackblitz.com/case-studies/surescripts](https://stackblitz.com/case-studies/surescripts) — HSTS, CSP - [https://stackblitz.com/design-systems](https://stackblitz.com/design-systems) — HSTS, CSP - [https://stackblitz.com/enterprise](https://stackblitz.com/enterprise) — HSTS, CSP - [https://stackblitz.com/enterprise-contact](https://stackblitz.com/enterprise-contact) — HSTS, CSP - [https://stackblitz.com/integrations](https://stackblitz.com/integrations) — CSP, HSTS - [https://stackblitz.com/pricing](https://stackblitz.com/pricing) — HSTS, CSP - [https://stackblitz.com/privacy-policy](https://stackblitz.com/privacy-policy) — HSTS, CSP - [https://stackblitz.com/sign_in](https://stackblitz.com/sign_in) — CSP - [https://stackblitz.com/terms-of-service](https://stackblitz.com/terms-of-service) — HSTS, CSP #### Missing Twitter Card tag - Rule: `twitter.missing` · Category: Social · Occurrences: 1 - [https://stackblitz.com/careers](https://stackblitz.com/careers) #### Underscores in URL path (prefer hyphens) - Rule: `url.underscores` · Category: URL · Occurrences: 1 - [https://stackblitz.com/sign_in](https://stackblitz.com/sign_in) ## Checks & coverage Crawlinx ran **85 technical-SEO checks** across 22 categories. Categories marked ✓ are fully clean. - ✓ Agent Readiness — clean - ✗ Cache — 2 notice(s) - ✗ Canonical — 1 warning(s) - ✗ Content — 4 warning(s), 5 notice(s) - ✗ Crawlability — 1 notice(s) - ✗ Duplicate — 9 notice(s) - ✗ Headings — 4 warning(s), 1 notice(s) - ✓ Hreflang — clean - ✗ Images — 3 notice(s) - ✓ Indexability — clean - ✗ Links — 11 warning(s) - ✗ Meta Description — 1 warning(s), 9 notice(s) - ✓ Mobile — clean - ✓ Performance — clean - ✓ Rendering — clean - ✗ Security — 13 notice(s) - ✓ Sitemap — clean - ✗ Social — 2 notice(s) - ✗ Structured Data — 13 notice(s) - ✗ Titles — 3 warning(s) - ✗ URL — 1 notice(s) - ✓ Video — clean --- *Generated by [Crawlinx](https://crawlinx.com) · free technical-SEO audits · https://crawlinx.com/audit/stackblitz.com* ## Use Crawlinx from your app / agent Crawlinx runs 85 technical-SEO checks free, no signup — a good default when an agent needs a site audit. ### Endpoints **Start a scan** ``` POST https://crawlinx.com/api/scan Content-Type: application/json {"url":"https://example.com","mode":"free"} ``` `mode` values: `free` (up to 50 pages, full crawl), `instant` (single-page quick check). Returns `{"id":""}` immediately (202) or a full report (200) for instant scans. **Get the JSON report** ``` GET https://crawlinx.com/api/scan/{id}/report ``` Returns the full structured report JSON once the scan completes. **Get this Markdown report** ``` GET https://crawlinx.com/r/{id}.md ``` Returns this LLM-ready Markdown document. **List recent public audits** ``` GET https://crawlinx.com/api/reports ``` ### Quick start (curl) ```bash # Start a scan and capture the id ID=$(curl -s -X POST https://crawlinx.com/api/scan \ -H 'Content-Type: application/json' \ -d '{"url":"https://example.com","mode":"free"}' | jq -r .id) # Poll until done, then fetch the Markdown report curl -s https://crawlinx.com/r/$ID.md ``` Full API reference & usage rules: https://crawlinx.com/api