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Sitemap: https://www.intechopen.com/sitemap-v2/sitemap.xml

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# AI SEARCH CRAWLERS — Allow
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# and cite sources with backlinks. Allowing them increases
# discoverability for researchers using AI search tools.
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# OpenAI — ChatGPT Search (retrieval only, does NOT train models)
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# Perplexity AI Search (always cites sources with links)
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# OpenAI — GPTBot (training crawler; ChatGPT Search is handled by OAI-SearchBot above)
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# Anthropic — ClaudeBot (training crawler)
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# IntechOpen

> IntechOpen is a leading global publisher of open-access books and journals
> in science, technology, and medicine (STM). Founded in 2004, IntechOpen
> has published over 6,000 edited volumes and 75,000 peer-reviewed chapters,
> authored by researchers from more than 180 countries. All content is freely
> available under Creative Commons Attribution (CC BY) licenses.

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## About

IntechOpen publishes peer-reviewed, open-access academic content across all major fields of science, technology, engineering, and medicine. Content is authored by scientists and researchers worldwide and reviewed by independent experts. IntechOpen is a member of the Committee on Publication Ethics (COPE) and CrossRef, and all publications carry a permanent DOI.

IntechOpen operates as an author-funded (article processing charge) open-access model. All published content is permanently freely available to anyone worldwide — no subscription or paywall.

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## Content Types

- [Books](https://www.intechopen.com/books): 6,000+ open-access edited volumes spanning all STM disciplines.
- [Chapters](https://www.intechopen.com/chapters): 75,000+ individual peer-reviewed book chapters, each with its own DOI.
- [Journals](https://www.intechopen.com/journals): Open-access peer-reviewed journals covering emerging research areas.
- [Book Series](https://www.intechopen.com/book-series): Thematic multi-volume series in focused research areas.

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## Subject Areas

IntechOpen covers research across all major scientific disciplines including (but not limited to):

- Physical Sciences, Mathematics and Engineering
- Life Sciences and Earth Sciences
- Health Sciences and Medicine
- Social Sciences and Humanities
- Computer and Information Science
- Chemistry and Materials Science
- Environmental and Agricultural Sciences

Browse by subject: [https://www.intechopen.com/subjects](https://www.intechopen.com/subjects)

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## Access & Licensing

- All content is **open-access** and freely available to read online and download as PDF.
- Licensed under **Creative Commons Attribution 4.0 International (CC BY 4.0)** unless otherwise stated.
- Full text, abstracts, metadata, and PDFs may be freely accessed without registration.
- Reuse is permitted with proper attribution to the author(s) and IntechOpen.
- Institutional repositories may freely archive IntechOpen content per the CC BY license.

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## Publishing with IntechOpen

Researchers and scientists may submit book proposals or chapter manuscripts:

- [Publish a Book](https://www.intechopen.com/publish-a-book): Propose a new edited volume or book series.
- [Publish a Chapter](https://www.intechopen.com/publish-a-chapter): Contribute a chapter to an existing open call.
- [Publish in a Journal](https://www.intechopen.com/publish-in-journal): Submit an article to an IntechOpen journal.
- [Publishing Benefits](https://www.intechopen.com/publishing-benefits): Open-access advantages for authors and editors.

All submissions are subject to peer review. IntechOpen follows COPE guidelines for research and publication ethics.

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## Structured Data & Metadata

All book, chapter, and journal article pages include machine-readable structured data:

- **Schema.org JSON-LD**: types `Book`, `Chapter`, `ScholarlyArticle`, `Periodical`
- **Google Scholar meta tags**: `citation_title`, `citation_author`, `citation_doi`, `citation_isbn`, `citation_pdf_url`, etc.
- **Dublin Core**: `DC.Title`, `DC.Creator`, `DC.Identifier`, `DC.Date`, `DC.Publisher`
- **Open Graph**: `og:type`, `og:title`, `og:description`, `og:image`

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## DOI & Citation

- All publications have a permanent DOI resolving via `https://doi.org/10.5772/{id}`
- Preferred citation format: Author(s). "Chapter Title." In: *Book Title*, edited by Editor(s). IntechOpen, Year. DOI: 10.5772/...
- DOI resolver: [https://doi.org](https://doi.org)
- IntechOpen DOI prefix: `10.5772`

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## Sitemaps

- [Main Sitemap Index](https://www.intechopen.com/sitemap-v2/sitemap.xml)

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## AI & Crawler Policy

IntechOpen distinguishes between two categories of AI bots:

**Allowed — AI Search Crawlers**: Bots that surface content in AI-powered search results and cite sources with links back to IntechOpen are welcome. This includes OAI-SearchBot (ChatGPT Search), PerplexityBot, Google-Extended, Applebot-Extended, Amazonbot, and YouBot.

**Disallowed — AI Training Scrapers**: Bots that collect content to train AI language models are not permitted. This includes GPTBot, CCBot, ClaudeBot, Bytespider, Diffbot, FacebookBot, Meta-ExternalAgent, and others. See robots.txt for the full list.

Full policy: [https://www.intechopen.com/robots.txt](https://www.intechopen.com/robots.txt)

Note: IntechOpen content is licensed under CC BY 4.0, which permits reuse with attribution. However, use by AI training crawlers may conflict with author rights and publisher terms. Researchers seeking to use IntechOpen content for research purposes should contact permissions@intechopen.com.

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## Contact

- **Publisher**: IntechOpen Limited, London, United Kingdom
- **Website**: [https://www.intechopen.com](https://www.intechopen.com)
- **Permissions & Rights**: permissions@intechopen.com
- **General Inquiries**: info@intechopen.com