changelog.gg

Set robots.txt rules for AI search, user-triggered browsing, and training crawlers that match your content policy.

AI search/user crawlers are allowed, while one or more training/data-use crawlers are blocked as a policy choice

Add explicit User-agent entries for AI crawlers — GPTBot, OAI-SearchBot, ClaudeBot, Claude-Web, Google-Extended, PerplexityBot, CCBot — with Allow/Disallow rules that reflect your policy. Decide per-bot whether you want training access, search indexing, or both, and document the choice in source so it doesn't silently drift in future edits.

Publish an A2A Agent Card so other agents can discover your agent-to-agent capabilities and supported interfaces.

No agent-to-agent surface was detected, so A2A agent-card discovery may not apply

Publish /.well-known/agent-card.json describing your agent: `name`, `description`, `endpoints`, `version`, and a complete `supportedInterfaces` array with the protocols and message types you accept. Include a `capabilities` block so calling agents can negotiate, and keep the URL stable across deploys — agents cache discovery responses.

Publish a discoverable agent-skills index so AI agents can find and load your structured skill bundles.

No agent skill surface was detected, so agent-skills discovery may not apply

Publish a skills discovery index at /.well-known/agent-skills/index.json (per the Agent Skills Discovery RFC v0.2.0) with a `$schema` field and a `skills` array. Each entry should have `name`, `type`, `description`, `url`, and a `sha256` digest of the SKILL.md so agents can verify integrity. Make sure each `url` resolves to a reachable SKILL.md.

No llms.txt file was detected; this emerging convention is optional and does not reduce the base score.

If you publish `/llms.txt`, serve it as plain text or markdown and link only to important public docs/resources. Treat it as an optional discovery aid, not a guaranteed ranking factor, and do not expose private/internal URLs.

Serve an MCP Server Card so agents can discover your Model Context Protocol surface and connect with the right capabilities.

No MCP server surface was detected, so MCP server-card discovery may not apply

Serve an MCP Server Card at /.well-known/mcp/server-card.json with `serverInfo` (name, version), the transport endpoint URL, and the `capabilities` you support. Accept /.well-known/mcp.json as a fallback for clients on the legacy path. The schema is being standardized — track the active proposal at github.com/modelcontextprotocol/modelcontextprotocol/pull/2127.

Expose OAuth/OIDC discovery metadata so agents can authenticate against your APIs programmatically.

No public login, signup, or protected API surface was detected, so OAuth/OIDC discovery may not apply

If your site has protected APIs, publish /.well-known/openid-configuration (for OpenID Connect) or /.well-known/oauth-authorization-server (for OAuth 2.0) with `issuer`, `authorization_endpoint`, `token_endpoint`, `jwks_uri`, and `grant_types_supported`. This lets agents discover how to authenticate without parsing your docs.

Publish OAuth Protected Resource metadata so agents know which auth servers issue valid tokens for your APIs.

No protected API surface was detected, so OAuth protected-resource metadata may not apply

Publish /.well-known/oauth-protected-resource (per RFC 9728) with your `resource` identifier, `authorization_servers` (the list of OAuth/OIDC issuer URLs that can issue tokens for this resource), and `scopes_supported`. This tells agents which auth server to obtain access tokens from and which scopes to request.

Expose in-page tools to AI agents via the WebMCP browser API so agents can act on your site directly.

No in-page agent tool surface was detected, so WebMCP may not apply

Implement the WebMCP API by calling `navigator.modelContext.provideContext()` with tool definitions exposing your site's key actions to AI agents. Each tool needs `name`, `description`, `inputSchema` (JSON Schema), and an `execute` callback. Register tools at the points an agent could meaningfully use them — after page hydration, on route changes, or when permission state changes.

Each indexable page carries enough unique, substantive content to merit indexing on its own without overlapping siblings.

2 page(s) are under 100 words; 0 page(s) are between 100 and 300 words; 0 duplicate-content fingerprint group(s) were detected.

Audit indexable pages for substantive, unique content — at minimum a few hundred words of original copy that delivers on the title and description. Consolidate near-duplicate pages with canonical tags or merge them into a single richer page. Don't ship placeholder "Coming soon" pages to production indexable URLs.

• /games/payday-2-218620/updates/2026-05-13-pubg-battlegrounds-x-payday-celebration-sale-be5a
• /games/far-cry-4-298110/updates/2026-05-13-get-farcry-4-at-80-off-542b

Pages expose complete Open Graph and Twitter Card metadata so they preview cleanly when shared on social, in chat, or by AI assistants.

2 blocking social preview issue(s) and 7 warning(s) were detected.

On shareable pages, add Open Graph and Twitter Card metadata in the head: `og:title`, `og:description`, `og:image` (1200×630 minimum), `og:url`, `og:type`, plus `twitter:card` set to `summary_large_image`. Make the OG content match the visible page so previews aren't misleading, and use a real image URL with stable dimensions so social platforms cache reliably.

• changelog.gg
• /games
• /games/counter-strike-2
• /games/dota-2
• /games/marvel-rivals

Article-like and substantial pages expose reliable freshness signals so answer engines know whether the content is current.

2 content page(s) have no reliable date signal and 0 have a newest signal older than six months.

Add truthful freshness metadata only where it reflects a real content update: JSON-LD dateModified/datePublished, article modified-time meta tags, a visible updated or reviewed date, or sitemap lastmod. Do not stamp every page with build time unless the visible content actually changed.

• changelog.gg
• /games

Content pages with factual claims link out to credible external primary sources so readers and answer engines can verify context.

5 content page(s) have fewer than two contextual external citation links.

For articles, guides, and research-like pages, cite official docs, standards, primary research, or authoritative sources where claims need support. Do not add arbitrary outbound links to transactional pages, and avoid vague anchors like "click here".

• changelog.gg
• /games
• /updates
• /games/marvel-rivals
• /games/stratus-battle-for-the-sky-355490/updates/2026-05-13-stratus-development-update-f192

Public page copy is readable enough for visitors, assistants, and crawlers to summarize without wading through oversized sentences.

2 sampled page(s) have unusually long sentence or word patterns.

Rewrite dense copy into shorter sentences and paragraphs with concrete nouns, direct verbs, and clear section breaks. Keep important explanatory pages easy to scan before adding more keywords or decorative copy.

• changelog.gg
• /games

Page copy reads naturally without repeating target keywords beyond useful frequency — informative for readers, not gamed for crawlers.

1 sampled page(s) have repeated phrase patterns that may read like keyword stuffing.

Re-read pages flagged for repetition and rewrite for human readers — the copy should explain the topic naturally, not chant the target keyword. Don't aim for a fixed keyword density; modern search engines and AI agents penalize unnatural repetition more than they reward it. Variety in vocabulary and sentence structure helps both ranking and comprehension.

• changelog.gg

No visible FAQ-style questions or FAQPage JSON-LD were detected.

Add visible question-and-answer sections only where they genuinely help users make a decision or complete a task.

Pages declare language and region alternates with hreflang annotations when content varies by locale, so search engines route the right version to the right reader.

No hreflang annotations were detected in the sampled pages.

On each localized page, add `<link rel="alternate" hreflang="...">` tags pointing to every language/region variant (including a self-reference). Use valid IANA language-region codes (e.g. `en-US`, `fr-FR`), absolute `href` URLs, and one `hreflang="x-default"` entry pointing to the version for unspecified locales. Each variant must reciprocally link back.

Lightweight server and document metrics from the sampled homepage are captured every scan so drift in HTML size, server stack, or DOM complexity is observable across reports.

Captured lightweight server and document metrics from the sampled homepage.

HTTP Observatory grade F with score 5.

Tighten response headers and HTTP posture where Observatory reports gaps.

Identify your own bot traffic with Web Bot Auth signed requests so receiving sites can verify and trust them.

Web Bot Auth directory exists but does not contain valid signing keys

Publish a JWKS at /.well-known/http-message-signatures-directory containing the public keys you use to sign outgoing bot requests, so receiving sites can verify those requests via HTTP Message Signatures (RFC 9421). Rotate keys on a regular cadence and keep the previous key in the JWKS until in-flight requests have aged out.

No Cloudflare Challenge Page marker was detected on the homepage response.

No DNSSEC DS or DNSKEY records were detected for the DNS zone.

Domain registration data is temporarily unavailable.

PSI mobile performance score is 74.

Improve mobile Lighthouse performance issues highlighted by PageSpeed Insights.

No Cloudflare cache status header was present on the homepage response.

Scanned 12 representative pages out of 26.

Publish Agentic Commerce Protocol discovery so agents can transact with your commerce surfaces without scraping.

No payable API surface was detected, so ACP discovery may not apply

Serve /.well-known/acp.json at the origin root with `protocol.name` set to `"acp"`, the `protocol.version`, `api_base_url`, supported transports, and `capabilities.services`. Agents can then discover your ACP implementation without first creating a checkout session.

No Cloudflare-generated error diagnostics were detected on the homepage response.

Detected Cloudflare product beacons: Web Analytics/RUM.

Detected 1 public DNS/service signal(s).

Publish Machine Payment Protocol metadata so agents can discover paid endpoints in your API.

No payable API surface was detected, so MPP discovery may not apply

Publish an OpenAPI document at /openapi.json with `x-payment-info` extensions on payable operations. Each operation should declare `intent` (charge or session), `method` (tempo, stripe, lightning, card), `amount`, and `currency`. Use the MPP SDK (`mppx` for TypeScript, `pympp` for Python) with framework middleware for Hono, Express, Next.js, or Elysia to handle the payment flow.

Expose Universal Commerce Protocol metadata so agents can transact for content or services through a standard interface.

No payable API surface was detected, so UCP discovery may not apply

Serve /.well-known/ucp with your protocol version, declared `services`, supported `capabilities`, and reachable `endpoints`. Make sure any spec URLs and referenced JSON Schemas resolve so agents can validate against them at discovery time.

Support x402-style HTTP 402 payment flows so agents can pay for API access machine-to-machine.

No payable API surface was detected, so x402 discovery may not apply

Add x402 payment middleware to your API routes so AI agents can pay for access via HTTP. Use `@x402/express`, `@x402/hono`, or `@x402/next` middleware with a facilitator URL and wallet address. Protected routes will return HTTP 402 with payment requirements that agents can fulfill automatically.

HTML validation is temporarily unavailable.