Sync

sync.so/docs
Score: 85 out of 100, grade B85
Grade B
Last checked: April 8, 2026 · Rerun
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Simulation: Fern // bud
Day 0
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Checks passed14/22Warnings3Failed4

Sync scores 85/100 (Grade B), passing 14 of 22 checks (64%). The documentation is broadly accessible to AI agents but has 7 areas that could be improved to better serve automated tooling.

# Agent Score Fix Report — Sync
URL: https://sync.so/docs
Score: 85/100 (Grade B)

I need help improving the AI-readiness of the documentation at https://sync.so/docs.
Agent Score found 4 failing checks and 3 warnings.

## Failing Checks (4)
- [content-discoverability] Llms Txt Directive: No llms.txt directive found in any of 5 sampled pages; 5 failed to fetch
- [page-size] Page Size Html: 2 of 10 sampled pages convert to over 100K chars (max 285K, 7% boilerplate)
- [page-size] Content Start Position: 2 of 10 sampled pages have content starting past 50% (worst 100%)
- [observability] Markdown Content Parity: 2 of 5 pages have substantive content differences between markdown and HTML (avg 32% missing); 1 failed to fetch

## Warnings (3)
- [content-discoverability] Llms Txt Valid: llms.txt contains parseable links but doesn't fully follow the proposed structure: https://sync.so/docs/llms.txt: No blockquote summary found; https://sync.so/llms.txt: No blockquote summary found
- [markdown-availability] Markdown Url Support: 5/10 sampled pages support .md URLs (50%); inconsistent support
- [markdown-availability] Content Negotiation: Content negotiation partially supported: 6 correct type, 0 wrong type, 4 HTML only

## Fix Instructions

For each issue above, please:
1. Analyze the documentation site at https://sync.so/docs
2. Implement the specific fix
3. Verify the fix would cause the check to pass

### Common fixes:
- **No llms.txt**: Create /llms.txt following https://llmstxt.org — list all doc pages in markdown format
- **No .md URL support**: Configure your docs platform to serve pages at equivalent .md URLs (e.g. /docs/quickstart.md)
- **No content negotiation**: Return markdown when request includes Accept: text/markdown header
- **Large page size**: Reduce nav boilerplate, inline scripts, and repetitive markup
- **No sitemap**: Generate /sitemap.xml listing all documentation URLs
- **Auth walls**: Ensure docs pages return 200 without requiring login cookies or tokens
- **No Last-Modified header**: Configure your server/CDN to include Last-Modified response headers
- **Tab content hidden**: Ensure tabbed content is rendered in the HTML (not JS-only) so agents can read all variants

## Run afdocs Locally for More Detail

To get deeper visibility into what's failing, run afdocs against your docs:

  npx afdocs check https://sync.so/docs --fixes --verbose

- **--fixes**: Adds "Fix:" lines to the output for each warn/fail check with actionable remediation steps
- **-v, --verbose**: Shows per-page details (specific URLs, character counts, error codes) for checks with issues — useful for per-URL visibility into what's failing
CHECK RESULTS

How your docs scored

markdown-url-support5/10 sampled pages support .md URLs (50%); inconsistent support
content-negotiationContent negotiation partially supported: 6 correct type, 0 wrong type, 4 HTML only
page-size-html2 of 10 sampled pages convert to over 100K chars (max 285K, 7% boilerplate)
content-start-position2 of 10 sampled pages have content starting past 50% (worst 100%)
rendering-strategyAll 10 sampled pages contain server-rendered content
page-size-markdownAll 6 pages under 50K chars (median 7K, max 19K)
auth-gate-detectionAll 10 sampled pages are publicly accessible
auth-alternative-accessAll docs pages are publicly accessible; no alternative access paths needed
markdown-content-parity2 of 5 pages have substantive content differences between markdown and HTML (avg 32% missing); 1 failed to fetch
llms-txt-freshnessllms.txt covers 100% of 51 sitemap doc pages; 3 llms.txt links not in sitemap (may indicate stale links or incomplete sitemap)
cache-header-hygieneAll 12 endpoints have appropriate cache headers
llms-txt-directiveNo llms.txt directive found in any of 5 sampled pages; 5 failed to fetch
llms-txt-validllms.txt contains parseable links but doesn't fully follow the proposed structure: https://sync.so/docs/llms.txt: No blockquote summary found; https://sync.so/llms.txt: No blockquote summary found
llms-txt-existsllms.txt found at 2 location(s)
llms-txt-sizellms.txt is 10,147 characters (under 50,000 threshold)
llms-txt-links-resolveAll 10 same-origin sampled links resolve (68 total links)
llms-txt-links-markdown9/10 same-origin sampled links point to markdown content (90%) (3 external links excluded)
tabbed-content-serializationNo tabbed content detected across 10 sampled pages
section-header-qualityNo tabbed content found; header quality check not applicable
markdown-code-fence-validityAll 10 code fences properly closed across 8 pages
http-status-codesAll 10 sampled pages return proper error codes for bad URLs
redirect-behaviorNo redirects detected across 10 sampled pages

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