--- tool: Crawlinx SEO audit source: https://crawlinx.com domain: customer.io report_url: "https://crawlinx.com/audit/customer.io" crawl_id: 20260711T010024-728f284b health_score: 73 generated_at: 2026-07-11T15:43:44Z total_pages: 50 html_pages: 50 indexable_pages: 44 errors: 2 warnings: 52 notices: 94 --- # SEO audit: customer.io **Health score: 73/100** — needs attention > Audited by [Crawlinx](https://crawlinx.com) — the free technical-SEO crawler. Full report: https://crawlinx.com/audit/customer.io ## Overview | Metric | Value | | --- | --- | | Pages crawled | 50 | | HTML pages | 50 | | Indexable | 44 | | Non-indexable | 5 | | Orphan pages | 10 | | Broken internal links | 0 | | Avg response time | 1074 ms | | Errors / Warnings / Notices | 2 / 52 / 94 | | Status codes | 49×200, 1×404 | ## Categories | Category | Score | Errors | Warnings | Notices | | --- | ---: | ---: | ---: | ---: | | Sitemap | 95 | 1 | 5 | 6 | | Crawlability | 96 | 1 | 3 | 1 | | Links | 90 | 0 | 16 | 12 | | Headings | 93 | 0 | 11 | 2 | | Structured Data | 95 | 0 | 8 | 2 | | Indexability | 96 | 0 | 6 | 0 | | Content | 99 | 0 | 2 | 42 | | Images | 99 | 0 | 1 | 5 | | Cache | 100 | 0 | 0 | 1 | | Duplicate | 100 | 0 | 0 | 4 | | Meta Description | 100 | 0 | 0 | 9 | | Performance | 100 | 0 | 0 | 1 | | Security | 100 | 0 | 0 | 2 | | URL | 100 | 0 | 0 | 7 | ## Issues ### Errors (2) #### Non-200 URL listed in sitemap - Rule: `sitemap.not_200` · Category: Sitemap · Occurrences: 1 - [https://customer.io/solutions](https://customer.io/solutions) — listed in sitemap but status 404 #### Client error (4xx) response - Rule: `status.4xx` · Category: Crawlability · Occurrences: 1 - [https://customer.io/solutions](https://customer.io/solutions) — HTTP 404 ### Warnings (52) #### Thin content (low word count) - Rule: `content.thin` · Category: Content · Occurrences: 2 - [https://customer.io/demo](https://customer.io/demo) — 182 words - [https://customer.io/solutions-partner-signup](https://customer.io/solutions-partner-signup) — 177 words #### Missing

- Rule: `h1.missing` · Category: Headings · Occurrences: 11 - [https://customer.io/agency-partners/](https://customer.io/agency-partners/) - [https://customer.io/careers](https://customer.io/careers) - [https://customer.io/competitors](https://customer.io/competitors) - [https://customer.io/confirm](https://customer.io/confirm) - [https://customer.io/contact](https://customer.io/contact) - [https://customer.io/customers](https://customer.io/customers) - [https://customer.io/features](https://customer.io/features) - [https://customer.io/google-cloud](https://customer.io/google-cloud) - [https://customer.io/integrations](https://customer.io/integrations) - [https://customer.io/solutions/activation](https://customer.io/solutions/activation) - [https://customer.io/tools](https://customer.io/tools) #### Images missing alt text - Rule: `images.missing_alt` · Category: Images · Occurrences: 1 - [https://customer.io/docs/journeys/amazon-s3-data-out](https://customer.io/docs/journeys/amazon-s3-data-out) — 2 of 17 images missing alt #### Page is noindex - Rule: `index.noindex` · Category: Indexability · Occurrences: 6 - [https://customer.io/confirm](https://customer.io/confirm) — meta/X-Robots: meta=noindex, follow - [https://customer.io/events/austin_od](https://customer.io/events/austin_od) — meta/X-Robots: meta=noindex, follow - [https://customer.io/events/chicago_mumford](https://customer.io/events/chicago_mumford) — meta/X-Robots: meta=noindex, follow - [https://customer.io/important-tips](https://customer.io/important-tips) — meta/X-Robots: meta=noindex, follow - [https://customer.io/solutions](https://customer.io/solutions) — meta/X-Robots: meta=noindex - [https://customer.io/startup-program-referral](https://customer.io/startup-program-referral) — meta/X-Robots: meta=noindex, follow #### Orphan page (no internal inlinks) - Rule: `links.orphan` · Category: Links · Occurrences: 10 - [https://customer.io/ai](https://customer.io/ai) — no internal links point here - [https://customer.io/events/ags-mx](https://customer.io/events/ags-mx) — no internal links point here - [https://customer.io/events/ags-tx](https://customer.io/events/ags-tx) — no internal links point here - [https://customer.io/events/ags_paris_6_26](https://customer.io/events/ags_paris_6_26) — no internal links point here - [https://customer.io/events/aibl_live_growth_26](https://customer.io/events/aibl_live_growth_26) — no internal links point here - [https://customer.io/events/aps-ldn-2025](https://customer.io/events/aps-ldn-2025) — no internal links point here - [https://customer.io/events/austin_dinner](https://customer.io/events/austin_dinner) — no internal links point here - [https://customer.io/events/boa_london_4_26](https://customer.io/events/boa_london_4_26) — no internal links point here - [https://customer.io/startup-partner-signup](https://customer.io/startup-partner-signup) — no internal links point here - [https://customer.io/startup-program-application](https://customer.io/startup-program-application) — no internal links point here #### Internal link points to a redirect - Rule: `links.redirect_target` · Category: Links · Occurrences: 6 - [https://customer.io/careers](https://customer.io/careers) — https://customer.io/blog/customer-io-raised-our-series-a/ → https://customer.io/learn/announcements/series-a - [https://customer.io/competitors](https://customer.io/competitors) — https://customer.io/competitors/customer-io-vs-intercom/ → https://www.try.customer.io/competitors/vs-intercom - [https://customer.io/integrations](https://customer.io/integrations) — https://customer.io/docs/journeys/amazon-s3-data-out → https://docs.customer.io/integrations/data-out/connections/amazon-s3-data-out/ - [https://customer.io/learn/announcements](https://customer.io/learn/announcements) — https://customer.io/learn/announcements/series-a → https://customer.io/learn/announcements/series-a - [https://customer.io/partners](https://customer.io/partners) — https://customer.io/agency-partners/ → https://customer.io/agency-partners - [https://customer.io/support](https://customer.io/support) — https://customer.io/agency-partners → https://customer.io/agency-partners #### Redirect chain (multiple hops) - Rule: `redirect.chain` · Category: Crawlability · Occurrences: 3 - [https://customer.io/blog/customer-io-raised-our-series-a/](https://customer.io/blog/customer-io-raised-our-series-a/) — 2 hops ending at https://customer.io/learn/announcements/series-a - [https://customer.io/competitors/customer-io-vs-intercom/](https://customer.io/competitors/customer-io-vs-intercom/) — 3 hops ending at https://www.try.customer.io/competitors/vs-intercom - [https://customer.io/docs/journeys/amazon-s3-data-out](https://customer.io/docs/journeys/amazon-s3-data-out) — 2 hops ending at https://docs.customer.io/integrations/data-out/connections/amazon-s3-data-out/ #### Rich-result schema missing required properties - Rule: `schema.invalid` · Category: Structured Data · Occurrences: 8 - [https://customer.io/events/ags-mx](https://customer.io/events/ags-mx) — Event missing: name, location - [https://customer.io/events/ags-tx](https://customer.io/events/ags-tx) — Event missing: name, location - [https://customer.io/events/ags_paris_6_26](https://customer.io/events/ags_paris_6_26) — Event missing: name, location - [https://customer.io/events/aibl_live_growth_26](https://customer.io/events/aibl_live_growth_26) — Event missing: name, location - [https://customer.io/events/amsterdam_dinner](https://customer.io/events/amsterdam_dinner) — Event missing: name, location - [https://customer.io/events/aps-ldn-2025](https://customer.io/events/aps-ldn-2025) — Event missing: name, location - [https://customer.io/events/austin_dinner](https://customer.io/events/austin_dinner) — Event missing: name, location - [https://customer.io/events/boa_london_4_26](https://customer.io/events/boa_london_4_26) — Event missing: name, location #### Non-indexable URL listed in sitemap - Rule: `sitemap.non_indexable` · Category: Sitemap · Occurrences: 5 - [https://customer.io/confirm](https://customer.io/confirm) — listed in sitemap but noindex - [https://customer.io/events/austin_od](https://customer.io/events/austin_od) — listed in sitemap but noindex - [https://customer.io/events/chicago_mumford](https://customer.io/events/chicago_mumford) — listed in sitemap but noindex - [https://customer.io/important-tips](https://customer.io/important-tips) — listed in sitemap but noindex - [https://customer.io/startup-program-referral](https://customer.io/startup-program-referral) — listed in sitemap but noindex ### Notices (94) #### Page served uncached (no-store/private or CDN bypass) - Rule: `cache.not_cacheable` · Category: Cache · Occurrences: 1 - [https://customer.io/learn/announcements](https://customer.io/learn/announcements) — Cache-Control: private, no-cache, no-store, max-age=0, must-revalidate · vercel: MISS #### Low text-to-HTML ratio - Rule: `content.low_ratio` · Category: Content · Occurrences: 42 - [https://customer.io/](https://customer.io/) — 0.9% - [https://customer.io/about](https://customer.io/about) — 0.7% - [https://customer.io/ai](https://customer.io/ai) — 1.5% - [https://customer.io/blog/customer-io-raised-our-series-a/](https://customer.io/blog/customer-io-raised-our-series-a/) — 1.6% - [https://customer.io/builders](https://customer.io/builders) — 2.0% - [https://customer.io/careers](https://customer.io/careers) — 1.8% - [https://customer.io/competitors](https://customer.io/competitors) — 1.0% - [https://customer.io/competitors/customer-io-vs-intercom/](https://customer.io/competitors/customer-io-vs-intercom/) — 2.5% - [https://customer.io/contact](https://customer.io/contact) — 1.0% - [https://customer.io/customers](https://customer.io/customers) — 1.0% - [https://customer.io/demo](https://customer.io/demo) — 0.7% - [https://customer.io/events](https://customer.io/events) — 0.3% - [https://customer.io/events/ags-mx](https://customer.io/events/ags-mx) — 0.6% - [https://customer.io/events/ags-tx](https://customer.io/events/ags-tx) — 0.6% - [https://customer.io/events/ags_paris_6_26](https://customer.io/events/ags_paris_6_26) — 0.5% - [https://customer.io/events/aibl_live_growth_26](https://customer.io/events/aibl_live_growth_26) — 0.5% - [https://customer.io/events/amsterdam_dinner](https://customer.io/events/amsterdam_dinner) — 0.8% - [https://customer.io/events/aps-ldn-2025](https://customer.io/events/aps-ldn-2025) — 0.6% - [https://customer.io/events/austin_dinner](https://customer.io/events/austin_dinner) — 0.8% - [https://customer.io/events/boa_london_4_26](https://customer.io/events/boa_london_4_26) — 0.6% - [https://customer.io/features](https://customer.io/features) — 1.4% - [https://customer.io/features/anonymous-messages](https://customer.io/features/anonymous-messages) — 0.9% - [https://customer.io/google-cloud](https://customer.io/google-cloud) — 1.1% - [https://customer.io/integrations](https://customer.io/integrations) — 1.0% - [https://customer.io/learn](https://customer.io/learn) — 0.7% - [https://customer.io/learn/announcements](https://customer.io/learn/announcements) — 0.4% - [https://customer.io/learn/announcements/a-new-look](https://customer.io/learn/announcements/a-new-look) — 1.0% - [https://customer.io/legal](https://customer.io/legal) — 0.7% - [https://customer.io/legal/acceptable-use-policy](https://customer.io/legal/acceptable-use-policy) — 4.8% - [https://customer.io/partners](https://customer.io/partners) — 1.4% - [https://customer.io/platform](https://customer.io/platform) — 1.1% - [https://customer.io/platform/data-integrations](https://customer.io/platform/data-integrations) — 1.1% - [https://customer.io/pricing](https://customer.io/pricing) — 1.0% - [https://customer.io/security](https://customer.io/security) — 1.2% - [https://customer.io/solutions-partner-signup](https://customer.io/solutions-partner-signup) — 0.6% - [https://customer.io/solutions/activation](https://customer.io/solutions/activation) — 0.9% - [https://customer.io/startup-partner-signup](https://customer.io/startup-partner-signup) — 0.6% - [https://customer.io/startup-program-application](https://customer.io/startup-program-application) — 0.6% - [https://customer.io/support](https://customer.io/support) — 1.5% - [https://customer.io/technology-partner-signup](https://customer.io/technology-partner-signup) — 0.6% - [https://customer.io/tools](https://customer.io/tools) — 1.0% - [https://customer.io/tools/calendar-link-generator](https://customer.io/tools/calendar-link-generator) — 0.8% #### Duplicate meta description across pages - Rule: `duplicate.meta_desc` · Category: Duplicate · Occurrences: 4 - [https://customer.io/events](https://customer.io/events) — meta description shared by 4 pages: https://customer.io/features, https://customer.io/legal/acceptable-use-policy, https://customer.io/events/aps-ldn-2025 - [https://customer.io/events/aps-ldn-2025](https://customer.io/events/aps-ldn-2025) — meta description shared by 4 pages: https://customer.io/events, https://customer.io/features, https://customer.io/legal/acceptable-use-policy - [https://customer.io/features](https://customer.io/features) — meta description shared by 4 pages: https://customer.io/events, https://customer.io/legal/acceptable-use-policy, https://customer.io/events/aps-ldn-2025 - [https://customer.io/legal/acceptable-use-policy](https://customer.io/legal/acceptable-use-policy) — meta description shared by 4 pages: https://customer.io/events, https://customer.io/features, https://customer.io/events/aps-ldn-2025 #### Multiple

elements - Rule: `h1.multiple` · Category: Headings · Occurrences: 2 - [https://customer.io/competitors/customer-io-vs-intercom/](https://customer.io/competitors/customer-io-vs-intercom/) — 16

elements - [https://customer.io/docs/journeys/amazon-s3-data-out](https://customer.io/docs/journeys/amazon-s3-data-out) — 2

elements #### Images without width/height (layout shift / CLS) - Rule: `images.missing_dimensions` · Category: Images · Occurrences: 5 - [https://customer.io/](https://customer.io/) — 7 of 79 images without width/height - [https://customer.io/agency-partners/](https://customer.io/agency-partners/) — 5 of 73 images without width/height - [https://customer.io/docs/journeys/amazon-s3-data-out](https://customer.io/docs/journeys/amazon-s3-data-out) — 17 of 17 images without width/height - [https://customer.io/events/austin_dinner](https://customer.io/events/austin_dinner) — 1 of 10 images without width/height - [https://customer.io/platform](https://customer.io/platform) — 1 of 24 images without width/height #### Internal link points to a noindex page - Rule: `links.to_noindex` · Category: Links · Occurrences: 12 - [https://customer.io/events](https://customer.io/events) — https://customer.io/events/austin_od - [https://customer.io/events](https://customer.io/events) — https://customer.io/events/chicago_mumford - [https://customer.io/events/ags-mx](https://customer.io/events/ags-mx) — https://customer.io/events/austin_od - [https://customer.io/events/ags-tx](https://customer.io/events/ags-tx) — https://customer.io/events/austin_od - [https://customer.io/events/ags_paris_6_26](https://customer.io/events/ags_paris_6_26) — https://customer.io/events/austin_od - [https://customer.io/events/aibl_live_growth_26](https://customer.io/events/aibl_live_growth_26) — https://customer.io/events/austin_od - [https://customer.io/events/amsterdam_dinner](https://customer.io/events/amsterdam_dinner) — https://customer.io/events/austin_od - [https://customer.io/events/aps-ldn-2025](https://customer.io/events/aps-ldn-2025) — https://customer.io/events/austin_od - [https://customer.io/events/austin_dinner](https://customer.io/events/austin_dinner) — https://customer.io/events/austin_od - [https://customer.io/events/austin_od](https://customer.io/events/austin_od) — https://customer.io/events/austin_od - [https://customer.io/events/boa_london_4_26](https://customer.io/events/boa_london_4_26) — https://customer.io/events/austin_od - [https://customer.io/events/chicago_mumford](https://customer.io/events/chicago_mumford) — https://customer.io/events/austin_od #### Meta description too long - Rule: `meta_desc.too_long` · Category: Meta Description · Occurrences: 7 - [https://customer.io/about](https://customer.io/about) — 164 chars - [https://customer.io/docs/journeys/amazon-s3-data-out](https://customer.io/docs/journeys/amazon-s3-data-out) — 272 chars - [https://customer.io/events/amsterdam_dinner](https://customer.io/events/amsterdam_dinner) — 179 chars - [https://customer.io/events/boa_london_4_26](https://customer.io/events/boa_london_4_26) — 165 chars - [https://customer.io/startup-program-application](https://customer.io/startup-program-application) — 267 chars - [https://customer.io/tools](https://customer.io/tools) — 169 chars - [https://customer.io/tools/calendar-link-generator](https://customer.io/tools/calendar-link-generator) — 176 chars #### Meta description too short - Rule: `meta_desc.too_short` · Category: Meta Description · Occurrences: 2 - [https://customer.io/events/aibl_live_growth_26](https://customer.io/events/aibl_live_growth_26) — 43 chars - [https://customer.io/legal](https://customer.io/legal) — 38 chars #### Slow server response - Rule: `perf.slow_response` · Category: Performance · Occurrences: 1 - [https://customer.io/docs/journeys/amazon-s3-data-out](https://customer.io/docs/journeys/amazon-s3-data-out) — 5083 ms #### URL redirects to another URL - Rule: `redirect.single` · Category: Crawlability · Occurrences: 1 - [https://customer.io/agency-partners/](https://customer.io/agency-partners/) — redirects to https://customer.io/agency-partners #### No structured data detected - Rule: `schema.none` · Category: Structured Data · Occurrences: 2 - [https://customer.io/agency-partners/](https://customer.io/agency-partners/) - [https://customer.io/competitors/customer-io-vs-intercom/](https://customer.io/competitors/customer-io-vs-intercom/) #### Missing recommended security headers - Rule: `security.missing_headers` · Category: Security · Occurrences: 2 - [https://customer.io/competitors/customer-io-vs-intercom/](https://customer.io/competitors/customer-io-vs-intercom/) — CSP - [https://customer.io/docs/journeys/amazon-s3-data-out](https://customer.io/docs/journeys/amazon-s3-data-out) — CSP, X-Content-Type-Options #### Indexable page not listed in sitemap - Rule: `sitemap.orphan_not_listed` · Category: Sitemap · Occurrences: 6 - [https://customer.io/](https://customer.io/) — indexable but not in sitemap - [https://customer.io/agency-partners/](https://customer.io/agency-partners/) — indexable but not in sitemap - [https://customer.io/competitors/customer-io-vs-intercom/](https://customer.io/competitors/customer-io-vs-intercom/) — indexable but not in sitemap - [https://customer.io/demo](https://customer.io/demo) — indexable but not in sitemap - [https://customer.io/docs/journeys/amazon-s3-data-out](https://customer.io/docs/journeys/amazon-s3-data-out) — indexable but not in sitemap - [https://customer.io/pricing](https://customer.io/pricing) — indexable but not in sitemap #### Underscores in URL path (prefer hyphens) - Rule: `url.underscores` · Category: URL · Occurrences: 7 - [https://customer.io/events/ags_paris_6_26](https://customer.io/events/ags_paris_6_26) - [https://customer.io/events/aibl_live_growth_26](https://customer.io/events/aibl_live_growth_26) - [https://customer.io/events/amsterdam_dinner](https://customer.io/events/amsterdam_dinner) - [https://customer.io/events/austin_dinner](https://customer.io/events/austin_dinner) - [https://customer.io/events/austin_od](https://customer.io/events/austin_od) - [https://customer.io/events/boa_london_4_26](https://customer.io/events/boa_london_4_26) - [https://customer.io/events/chicago_mumford](https://customer.io/events/chicago_mumford) ## Checks & coverage Crawlinx ran **85 technical-SEO checks** across 22 categories. Categories marked ✓ are fully clean. - ✓ Agent Readiness — clean - ✗ Cache — 1 notice(s) - ✓ Canonical — clean - ✗ Content — 2 warning(s), 42 notice(s) - ✗ Crawlability — 1 error(s), 3 warning(s), 1 notice(s) - ✗ Duplicate — 4 notice(s) - ✗ Headings — 11 warning(s), 2 notice(s) - ✓ Hreflang — clean - ✗ Images — 1 warning(s), 5 notice(s) - ✗ Indexability — 6 warning(s) - ✗ Links — 16 warning(s), 12 notice(s) - ✗ Meta Description — 9 notice(s) - ✓ Mobile — clean - ✗ Performance — 1 notice(s) - ✓ Rendering — clean - ✗ Security — 2 notice(s) - ✗ Sitemap — 1 error(s), 5 warning(s), 6 notice(s) - ✓ Social — clean - ✗ Structured Data — 8 warning(s), 2 notice(s) - ✓ Titles — clean - ✗ URL — 7 notice(s) - ✓ Video — clean --- *Generated by [Crawlinx](https://crawlinx.com) · free technical-SEO audits · https://crawlinx.com/audit/customer.io* ## 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