indexnow

indexnow is a skill for Claude Code, Codex from dalroot/agentic-seo. It costs 80 tokens per session (832 once invoked), scanned A, original, MIT.

When the user wants to implement IndexNow, notify search engines of new/updated URLs, or speed up Bing indexing. Also use when the user mentions "IndexNow," "Bing indexing," "URL notification," "instant indexing," "sitemap IndexNow sync," "share URL list with sitemap," or "IndexNow API." For sitemap SSOT, use…

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Install with agentmods
npx agentmods add skills/dalroot/agentic-seo/indexnow
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add dalroot/agentic-seo --skill indexnow
Clone the repo
git clone --depth 1 https://github.com/dalroot/agentic-seo

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for indexnow

README.md
[![agentmods](https://agentmods.dev/badge/skills/dalroot/agentic-seo/indexnow/github.svg)](https://agentmods.dev/skills/dalroot/agentic-seo/indexnow)
Your own site
<a href="https://agentmods.dev/skills/dalroot/agentic-seo/indexnow"><img src="https://agentmods.dev/badge/skills/dalroot/agentic-seo/indexnow/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for indexnow

Your own site · 80×15
<a href="https://agentmods.dev/skills/dalroot/agentic-seo/indexnow"><img src="https://agentmods.dev/badge/skills/dalroot/agentic-seo/indexnow.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 80 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 832 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin unknown No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00080 $0.00832
Opus 5.5 $0.00032 $0.00333
Sonnet 5.5 $0.00016 $0.00166
Haiku 4.5 $0.00008 $0.00083

Measured today against content hash 5d6c133b1fdc, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

indexnow scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured today.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

skills/seo/technical/indexnow/SKILL.md · 101 lines

How it starts

The opening of the file, as written. The whole thing — 101 lines — stays where its author put it; the contents beside it link to each section on GitHub.

SEO Technical: IndexNow

Guides IndexNow protocol integration for faster search engine indexing (primarily Bing).

When invoking: On first use, if helpful, open with 1–2 sentences on what this skill covers and why it matters, then provide the main output. On subsequent use or when the user asks to skip, go directly to the main output.

Scope (Technical SEO)

  • IndexNow: Submit URLs to Bing/Yandex for faster indexing
  • URL notification: Notify search engines of new or updated URLs

Initial Assessment

Check for project context first: If .claude/project-context.md or .cursor/project-context.md exists, read it for site URL.

Identify:

  1. Site URL: Base domain
  2. URL source: Config file, sitemap, CMS, etc.
  3. Deployment: CI/CD, manual, or both

Overview

IndexNow notifies search engines (mainly Bing) of new or updated URLs to speed up indexing.

Implementation Steps

1. API Key and Verification

  • Generate API key (e.g., UUID)
  • Create verification file: https://example.com/{key}.txt
  • File content: the API key string
  • Configure key and URL in your IndexNow client

2. Submission Methods

Method When to use
Single URL New or updated page
Batch Many URLs at once (e.g., after deploy)
Relative paths Convert to full URLs before submitting

3. Best Practices

Practice Note
When to submit New pages, major content updates, meta changes
When not to Minor edits; let natural crawling handle
Frequency Once per deploy; avoid excessive submissions
Priority Submit high-value commercial pages first

4. CI/CD Integration

npm run build
npm run indexnow:all

5. Single Source of Truth (URL List)

  • Use same config as sitemap: Import URL list from central config (e.g., site-pages-config.ts) or sitemap generation logic.
  • Avoid: Separate hardcoded URL lists for IndexNow—leads to inconsistency and missed URLs.
  • Feed: If you have RSS/feed, it can also consume from the same config to stay in sync.

Read the full file on GitHub · 101 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. today First seen · 101 lines · 80 tokens per session scan A 5d6c133b1fdc

Subscribe to this mod's changes

indexnow is a skill published in the GitHub repository dalroot/agentic-seo (25 stars, last pushed 6d ago), licensed MIT. It adds 80 tokens to every session and 832 once invoked, about $0.0003 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-10-26.

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