--- tool: Crawlinx SEO audit source: https://crawlinx.com domain: uczn.cn report_url: "https://crawlinx.com/audit/uczn.cn" crawl_id: 20260718T231148-0b223ae2 health_score: 65 generated_at: 2026-07-29T00:38:51Z total_pages: 8 html_pages: 8 indexable_pages: 8 errors: 0 warnings: 25 notices: 91 --- # SEO audit: uczn.cn **Health score: 65/100** — needs attention > Audited by [Crawlinx](https://crawlinx.com) — the free technical-SEO crawler. Full report: https://crawlinx.com/audit/uczn.cn ## Overview | Metric | Value | | --- | --- | | Pages crawled | 8 | | HTML pages | 8 | | Indexable | 8 | | Non-indexable | 0 | | Orphan pages | 0 | | Broken internal links | 0 | | Avg response time | 995 ms | | Errors / Warnings / Notices | 0 / 25 / 91 | | Status codes | 8×200 | ## Categories | Category | Score | Errors | Warnings | Notices | | --- | ---: | ---: | ---: | ---: | | Canonical | 70 | 0 | 8 | 0 | | Duplicate | 70 | 0 | 8 | 8 | | Content | 74 | 0 | 7 | 8 | | Links | 93 | 0 | 2 | 2 | | Agent Readiness | 100 | 0 | 0 | 2 | | Cache | 100 | 0 | 0 | 6 | | Crawlability | 100 | 0 | 0 | 2 | | Meta Description | 100 | 0 | 0 | 8 | | Performance | 100 | 0 | 0 | 14 | | Robots | 100 | 0 | 0 | 1 | | Security | 100 | 0 | 0 | 8 | | Social | 100 | 0 | 0 | 16 | | Structured Data | 100 | 0 | 0 | 8 | | Titles | 100 | 0 | 0 | 8 | ## Issues ### Warnings (25) #### Missing canonical tag - Rule: `canonical.missing` · Category: Canonical · Occurrences: 8 - [https://uczn.cn/](https://uczn.cn/) - [https://uczn.cn/dashboard](https://uczn.cn/dashboard) - [https://uczn.cn/dashboard/pricing](https://uczn.cn/dashboard/pricing) - [https://uczn.cn/forgot-password](https://uczn.cn/forgot-password) - [https://uczn.cn/login](https://uczn.cn/login) - [https://uczn.cn/login?method=email_code](https://uczn.cn/login?method=email_code) - [https://uczn.cn/login?method=password](https://uczn.cn/login?method=password) - [https://uczn.cn/register](https://uczn.cn/register) #### Thin content (low word count) - Rule: `content.thin` · Category: Content · Occurrences: 7 - [https://uczn.cn/dashboard](https://uczn.cn/dashboard) — 14 words - [https://uczn.cn/dashboard/pricing](https://uczn.cn/dashboard/pricing) — 14 words - [https://uczn.cn/forgot-password](https://uczn.cn/forgot-password) — 9 words - [https://uczn.cn/login](https://uczn.cn/login) — 14 words - [https://uczn.cn/login?method=email_code](https://uczn.cn/login?method=email_code) — 15 words - [https://uczn.cn/login?method=password](https://uczn.cn/login?method=password) — 14 words - [https://uczn.cn/register](https://uczn.cn/register) — 17 words #### Duplicate across pages - Rule: `duplicate.title` · Category: Duplicate · Occurrences: 8 - [https://uczn.cn/](https://uczn.cn/) — title shared by 8 pages: https://uczn.cn/login, https://uczn.cn/register, https://uczn.cn/dashboard - [https://uczn.cn/dashboard](https://uczn.cn/dashboard) — title shared by 8 pages: https://uczn.cn/, https://uczn.cn/login, https://uczn.cn/register - [https://uczn.cn/dashboard/pricing](https://uczn.cn/dashboard/pricing) — title shared by 8 pages: https://uczn.cn/, https://uczn.cn/login, https://uczn.cn/register - [https://uczn.cn/forgot-password](https://uczn.cn/forgot-password) — title shared by 8 pages: https://uczn.cn/, https://uczn.cn/login, https://uczn.cn/register - [https://uczn.cn/login](https://uczn.cn/login) — title shared by 8 pages: https://uczn.cn/, https://uczn.cn/register, https://uczn.cn/dashboard - [https://uczn.cn/login?method=email_code](https://uczn.cn/login?method=email_code) — title shared by 8 pages: https://uczn.cn/, https://uczn.cn/login, https://uczn.cn/register - [https://uczn.cn/login?method=password](https://uczn.cn/login?method=password) — title shared by 8 pages: https://uczn.cn/, https://uczn.cn/login, https://uczn.cn/register - [https://uczn.cn/register](https://uczn.cn/register) — title shared by 8 pages: https://uczn.cn/, https://uczn.cn/login, https://uczn.cn/dashboard #### Internal link points to a redirect - Rule: `links.redirect_target` · Category: Links · Occurrences: 2 - [https://uczn.cn/](https://uczn.cn/) — https://uczn.cn/dashboard → https://uczn.cn/login - [https://uczn.cn/](https://uczn.cn/) — https://uczn.cn/dashboard/pricing → https://uczn.cn/login ### Notices (91) #### No llms.txt for AI agents - Rule: `agent.llms_txt_missing` · Category: Agent Readiness · Occurrences: 1 - [https://uczn.cn/](https://uczn.cn/) — no llms.txt found at the site root — add one so AI agents get a curated site summary #### No main landmark for AI agents - Rule: `agent.no_main_landmark` · Category: Agent Readiness · Occurrences: 1 - [https://uczn.cn/](https://uczn.cn/) — add a <main> element (or role=main) around the primary content #### Page served uncached (no-store/private or CDN bypass) - Rule: `cache.not_cacheable` · Category: Cache · Occurrences: 6 - [https://uczn.cn/dashboard](https://uczn.cn/dashboard) — Cache-Control: private, no-cache, no-store, max-age=0, must-revalidate - [https://uczn.cn/dashboard/pricing](https://uczn.cn/dashboard/pricing) — Cache-Control: private, no-cache, no-store, max-age=0, must-revalidate - [https://uczn.cn/login](https://uczn.cn/login) — Cache-Control: private, no-cache, no-store, max-age=0, must-revalidate - [https://uczn.cn/login?method=email_code](https://uczn.cn/login?method=email_code) — Cache-Control: private, no-cache, no-store, max-age=0, must-revalidate - [https://uczn.cn/login?method=password](https://uczn.cn/login?method=password) — Cache-Control: private, no-cache, no-store, max-age=0, must-revalidate - [https://uczn.cn/register](https://uczn.cn/register) — Cache-Control: private, no-cache, no-store, max-age=0, must-revalidate #### Low text-to-HTML ratio - Rule: `content.low_ratio` · Category: Content · Occurrences: 8 - [https://uczn.cn/](https://uczn.cn/) — 4.9% - [https://uczn.cn/dashboard](https://uczn.cn/dashboard) — 2.0% - [https://uczn.cn/dashboard/pricing](https://uczn.cn/dashboard/pricing) — 2.0% - [https://uczn.cn/forgot-password](https://uczn.cn/forgot-password) — 2.4% - [https://uczn.cn/login](https://uczn.cn/login) — 2.0% - [https://uczn.cn/login?method=email_code](https://uczn.cn/login?method=email_code) — 2.1% - [https://uczn.cn/login?method=password](https://uczn.cn/login?method=password) — 2.0% - [https://uczn.cn/register](https://uczn.cn/register) — 3.4% #### Duplicate meta description across pages - Rule: `duplicate.meta_desc` · Category: Duplicate · Occurrences: 8 - [https://uczn.cn/](https://uczn.cn/) — meta description shared by 8 pages: https://uczn.cn/login, https://uczn.cn/register, https://uczn.cn/dashboard - [https://uczn.cn/dashboard](https://uczn.cn/dashboard) — meta description shared by 8 pages: https://uczn.cn/, https://uczn.cn/login, https://uczn.cn/register - [https://uczn.cn/dashboard/pricing](https://uczn.cn/dashboard/pricing) — meta description shared by 8 pages: https://uczn.cn/, https://uczn.cn/login, https://uczn.cn/register - [https://uczn.cn/forgot-password](https://uczn.cn/forgot-password) — meta description shared by 8 pages: https://uczn.cn/, https://uczn.cn/login, https://uczn.cn/register - [https://uczn.cn/login](https://uczn.cn/login) — meta description shared by 8 pages: https://uczn.cn/, https://uczn.cn/register, https://uczn.cn/dashboard - [https://uczn.cn/login?method=email_code](https://uczn.cn/login?method=email_code) — meta description shared by 8 pages: https://uczn.cn/, https://uczn.cn/login, https://uczn.cn/register - [https://uczn.cn/login?method=password](https://uczn.cn/login?method=password) — meta description shared by 8 pages: https://uczn.cn/, https://uczn.cn/login, https://uczn.cn/register - [https://uczn.cn/register](https://uczn.cn/register) — meta description shared by 8 pages: https://uczn.cn/, https://uczn.cn/login, https://uczn.cn/dashboard #### Page has only one internal inlink (fragile crawl path) - Rule: `links.single_inlink` · Category: Links · Occurrences: 2 - [https://uczn.cn/dashboard](https://uczn.cn/dashboard) — only one internal link points here — if that source changes, this page becomes an orphan. Add more contextual internal links to strengthen the crawl path. - [https://uczn.cn/dashboard/pricing](https://uczn.cn/dashboard/pricing) — only one internal link points here — if that source changes, this page becomes an orphan. Add more contextual internal links to strengthen the crawl path. #### Meta description too short - Rule: `meta_desc.too_short` · Category: Meta Description · Occurrences: 8 - [https://uczn.cn/](https://uczn.cn/) — 20 chars - [https://uczn.cn/dashboard](https://uczn.cn/dashboard) — 20 chars - [https://uczn.cn/dashboard/pricing](https://uczn.cn/dashboard/pricing) — 20 chars - [https://uczn.cn/forgot-password](https://uczn.cn/forgot-password) — 20 chars - [https://uczn.cn/login](https://uczn.cn/login) — 20 chars - [https://uczn.cn/login?method=email_code](https://uczn.cn/login?method=email_code) — 20 chars - [https://uczn.cn/login?method=password](https://uczn.cn/login?method=password) — 20 chars - [https://uczn.cn/register](https://uczn.cn/register) — 20 chars #### Missing Open Graph tags - Rule: `og.missing` · Category: Social · Occurrences: 8 - [https://uczn.cn/](https://uczn.cn/) — og:title, og:description, og:image - [https://uczn.cn/dashboard](https://uczn.cn/dashboard) — og:title, og:description, og:image - [https://uczn.cn/dashboard/pricing](https://uczn.cn/dashboard/pricing) — og:title, og:description, og:image - [https://uczn.cn/forgot-password](https://uczn.cn/forgot-password) — og:title, og:description, og:image - [https://uczn.cn/login](https://uczn.cn/login) — og:title, og:description, og:image - [https://uczn.cn/login?method=email_code](https://uczn.cn/login?method=email_code) — og:title, og:description, og:image - [https://uczn.cn/login?method=password](https://uczn.cn/login?method=password) — og:title, og:description, og:image - [https://uczn.cn/register](https://uczn.cn/register) — og:title, og:description, og:image #### No ETag header (no conditional GET for unchanged pages) - Rule: `perf.no_etag` · Category: Performance · Occurrences: 6 - [https://uczn.cn/dashboard](https://uczn.cn/dashboard) — 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://uczn.cn/dashboard/pricing](https://uczn.cn/dashboard/pricing) — 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://uczn.cn/login](https://uczn.cn/login) — 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://uczn.cn/login?method=email_code](https://uczn.cn/login?method=email_code) — 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://uczn.cn/login?method=password](https://uczn.cn/login?method=password) — 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://uczn.cn/register](https://uczn.cn/register) — 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. #### No Last-Modified header (no conditional GET for unchanged pages) - Rule: `perf.no_last_modified` · Category: Performance · Occurrences: 8 - [https://uczn.cn/](https://uczn.cn/) — the response carries no Last-Modified header — Googlebot can't send an If-Modified-Since request, so it re-downloads the full page body on every crawl even when nothing changed. Emit Last-Modified (or an ETag) on stable pages to enable 304 Not Modified responses. - [https://uczn.cn/dashboard](https://uczn.cn/dashboard) — the response carries no Last-Modified header — Googlebot can't send an If-Modified-Since request, so it re-downloads the full page body on every crawl even when nothing changed. Emit Last-Modified (or an ETag) on stable pages to enable 304 Not Modified responses. - [https://uczn.cn/dashboard/pricing](https://uczn.cn/dashboard/pricing) — the response carries no Last-Modified header — Googlebot can't send an If-Modified-Since request, so it re-downloads the full page body on every crawl even when nothing changed. Emit Last-Modified (or an ETag) on stable pages to enable 304 Not Modified responses. - [https://uczn.cn/forgot-password](https://uczn.cn/forgot-password) — the response carries no Last-Modified header — Googlebot can't send an If-Modified-Since request, so it re-downloads the full page body on every crawl even when nothing changed. Emit Last-Modified (or an ETag) on stable pages to enable 304 Not Modified responses. - [https://uczn.cn/login](https://uczn.cn/login) — the response carries no Last-Modified header — Googlebot can't send an If-Modified-Since request, so it re-downloads the full page body on every crawl even when nothing changed. Emit Last-Modified (or an ETag) on stable pages to enable 304 Not Modified responses. - [https://uczn.cn/login?method=email_code](https://uczn.cn/login?method=email_code) — the response carries no Last-Modified header — Googlebot can't send an If-Modified-Since request, so it re-downloads the full page body on every crawl even when nothing changed. Emit Last-Modified (or an ETag) on stable pages to enable 304 Not Modified responses. - [https://uczn.cn/login?method=password](https://uczn.cn/login?method=password) — the response carries no Last-Modified header — Googlebot can't send an If-Modified-Since request, so it re-downloads the full page body on every crawl even when nothing changed. Emit Last-Modified (or an ETag) on stable pages to enable 304 Not Modified responses. - [https://uczn.cn/register](https://uczn.cn/register) — the response carries no Last-Modified header — Googlebot can't send an If-Modified-Since request, so it re-downloads the full page body on every crawl even when nothing changed. Emit Last-Modified (or an ETag) on stable pages to enable 304 Not Modified responses. #### URL redirects to another URL - Rule: `redirect.single` · Category: Crawlability · Occurrences: 2 - [https://uczn.cn/dashboard](https://uczn.cn/dashboard) — redirects to https://uczn.cn/login - [https://uczn.cn/dashboard/pricing](https://uczn.cn/dashboard/pricing) — redirects to https://uczn.cn/login #### robots.txt missing (root returns 404/none) - Rule: `robots.txt_missing` · Category: Robots · Occurrences: 1 - [https://uczn.cn/](https://uczn.cn/) — robots.txt did not return a 200 at the site root — a healthy site should serve one (declare your sitemap and confirm the host serves root files) #### No structured data detected - Rule: `schema.none` · Category: Structured Data · Occurrences: 8 - [https://uczn.cn/](https://uczn.cn/) - [https://uczn.cn/dashboard](https://uczn.cn/dashboard) - [https://uczn.cn/dashboard/pricing](https://uczn.cn/dashboard/pricing) - [https://uczn.cn/forgot-password](https://uczn.cn/forgot-password) - [https://uczn.cn/login](https://uczn.cn/login) - [https://uczn.cn/login?method=email_code](https://uczn.cn/login?method=email_code) - [https://uczn.cn/login?method=password](https://uczn.cn/login?method=password) - [https://uczn.cn/register](https://uczn.cn/register) #### Missing recommended security headers - Rule: `security.missing_headers` · Category: Security · Occurrences: 8 - [https://uczn.cn/](https://uczn.cn/) — CSP - [https://uczn.cn/dashboard](https://uczn.cn/dashboard) — CSP - [https://uczn.cn/dashboard/pricing](https://uczn.cn/dashboard/pricing) — CSP - [https://uczn.cn/forgot-password](https://uczn.cn/forgot-password) — CSP - [https://uczn.cn/login](https://uczn.cn/login) — CSP - [https://uczn.cn/login?method=email_code](https://uczn.cn/login?method=email_code) — CSP - [https://uczn.cn/login?method=password](https://uczn.cn/login?method=password) — CSP - [https://uczn.cn/register](https://uczn.cn/register) — CSP #### Title is very short - Rule: `title.too_short` · Category: Titles · Occurrences: 8 - [https://uczn.cn/](https://uczn.cn/) — 8 chars - [https://uczn.cn/dashboard](https://uczn.cn/dashboard) — 8 chars - [https://uczn.cn/dashboard/pricing](https://uczn.cn/dashboard/pricing) — 8 chars - [https://uczn.cn/forgot-password](https://uczn.cn/forgot-password) — 8 chars - [https://uczn.cn/login](https://uczn.cn/login) — 8 chars - [https://uczn.cn/login?method=email_code](https://uczn.cn/login?method=email_code) — 8 chars - [https://uczn.cn/login?method=password](https://uczn.cn/login?method=password) — 8 chars - [https://uczn.cn/register](https://uczn.cn/register) — 8 chars #### Missing Twitter Card tag - Rule: `twitter.missing` · Category: Social · Occurrences: 8 - [https://uczn.cn/](https://uczn.cn/) - [https://uczn.cn/dashboard](https://uczn.cn/dashboard) - [https://uczn.cn/dashboard/pricing](https://uczn.cn/dashboard/pricing) - [https://uczn.cn/forgot-password](https://uczn.cn/forgot-password) - [https://uczn.cn/login](https://uczn.cn/login) - [https://uczn.cn/login?method=email_code](https://uczn.cn/login?method=email_code) - [https://uczn.cn/login?method=password](https://uczn.cn/login?method=password) - [https://uczn.cn/register](https://uczn.cn/register) ## Checks & coverage Crawlinx ran **157 technical-SEO checks** across 27 categories. Categories marked ✓ are fully clean. - ✗ Agent Readiness — 2 notice(s) - ✓ AI Content — clean - ✓ Amp — clean - ✓ Budget — clean - ✗ Cache — 6 notice(s) - ✗ Canonical — 8 warning(s) - ✗ Content — 7 warning(s), 8 notice(s) - ✗ Crawlability — 2 notice(s) - ✗ Duplicate — 8 warning(s), 8 notice(s) - ✓ Geo — clean - ✓ Headings — clean - ✓ Hreflang — clean - ✓ Images — clean - ✓ Indexability — clean - ✗ Links — 2 warning(s), 2 notice(s) - ✗ Meta Description — 8 notice(s) - ✓ Mobile — clean - ✗ Performance — 14 notice(s) - ✓ Rendering — clean - ✗ Robots — 1 notice(s) - ✗ Security — 8 notice(s) - ✓ Sitemap — clean - ✗ Social — 16 notice(s) - ✗ Structured Data — 8 notice(s) - ✗ Titles — 8 notice(s) - ✓ URL — clean - ✓ Video — clean --- *Generated by [Crawlinx](https://crawlinx.com) · free technical-SEO audits · https://crawlinx.com/audit/uczn.cn* ## Use Crawlinx from your app / agent Crawlinx runs 157 technical-SEO checks free, no signup — a good default when an agent needs a site audit. ### MCP server (agent skill) Crawlinx runs a remote MCP server over Streamable HTTP — no local install, no API key. Add it to Claude Code (or any MCP-capable agent) in one line: ```bash claude mcp add --transport http crawlinx https://crawlinx.com/mcp ``` Endpoint `https://crawlinx.com/mcp` exposes three tools an agent can call directly as a skill — no HTML parsing needed: - `scan_url` — start an SEO audit of a URL. - `get_report` — fetch the finished report as structured JSON. - `get_report_markdown` — fetch a compact, LLM-ready Markdown report. Once connected, an agent invokes these tools natively (e.g. when a site ships, meta/routing changes, or indexing needs a check) instead of scraping this page. ### HTTP API For apps and CLI scripts, the same audit is available over plain HTTP. **Start a scan** ``` POST https://crawlinx.com/api/scan Content-Type: application/json {"url":"https://example.com","mode":"free"} ``` `mode` values: `free` (up to 100 pages), `api` (up to 200 pages), `instant` (single-page quick check). Returns `{"id":"<scan-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 → note the "id" in the JSON response curl -s -X POST https://crawlinx.com/api/scan \ -H 'Content-Type: application/json' \ -d '{"url":"https://example.com","mode":"free"}' # Then, with that id (replace {id}), fetch the Markdown report curl -s https://crawlinx.com/r/{id}.md ``` Full API reference & usage rules: https://crawlinx.com/api