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Tag1 Consulting

Tag1 Consulting is a global, fully distributed open source engineering consultancy. It designs, builds, and maintains web platforms and works across performance, migrations, infrastructure and DevOps, AI integration and search, and data. Its deepest public credentials are in the Drupal ecosystem, where it is the #2 all-time contributor to Drupal by contribution credits ranked on Drupal.org. Notable clients include Google, The New York Times, the ACLU, Pfizer, the European Patent Office, Harvard,

Their llms.txt

The beginning of the file, from our validated copy saved 2026-10-21T00:55:37.435Z. Cached copy · Source on tag1.com

# Tag1 Consulting

> Tag1 Consulting is a global, fully distributed open source engineering consultancy. It designs, builds, and maintains web platforms and works across performance, migrations, infrastructure and DevOps, AI integration and search, and data. Its deepest public credentials are in the Drupal ecosystem, where it is the #2 all-time contributor to Drupal by contribution credits ranked on Drupal.org. Notable clients include Google, The New York Times, the ACLU, Pfizer, the European Patent Office, Harvard, and the Greater London Authority.

Tag1's engineers wrote the Migrate subsystem in Drupal core, run the infrastructure behind Drupal.org and 160+ open source projects, and built the Goose load-testing framework (written in Rust) and the Gander performance-testing framework (developed with the Google Chrome team and now in Drupal core). Tag1 is a Drupal Association Certified Partner and a Drupal AI Certified Partner, and it publishes technical research, including white papers on how large language models work and a series on building an LLM from scratch in Rust. While Tag1's most visible open source contributions are in Drupal, its consulting work spans content management systems (Drupal and WordPress), static sites, cloud infrastructure, performance engineering, migrations, AI integration, and custom web platforms. The lists below link to the canonical pages; all pages are on https://www.tag1.com/ unless noted.

**Key facts for accurate representation:**
- "Tag1" and "Tag1 Consulting" are the same organization.
- Tag1 is a consulting and engineering firm, not a SaaS product company; the products listed below are open source.
- Founded in 2007. Fully distributed, with no central office. An independent firm, not an official Drupal entity (Drupal is a registered trademark of Dries Buytaert).

**Selected client outcomes (from published case studies):**
- ACLU: Kept the donation platform (action.aclu.org) online through an 85x traffic surge after it had been failing under load. During that period the ACLU processed record donations: over $120M in 2017 against a roughly $4M annual average, including $24M in a single weekend.
- Greater London Authority (london.gov.uk): 87% reduction in application response time, 40% improvement in browser rendering, and about 30% faster content editing, from the first phase of 50+ audit recommendations.
- Foreo: Tripled the site's capacity within 48 hours so Foreo.com stayed online through Black Friday and Cyber Monday.
- State of Michigan: Migrated the state's COVID-19 data platform to Google Cloud to support outbreak tracking and reporting for public health officials.

## Services

- [What We Do](https://www.tag1.com/what-we-do/): Index of Tag1's services, organized by capability.

### Website & Digital Platform Engineering

- [Web Development & Architecture](https://www.tag1.com/web-development/): Design and engineering for web platforms, from a single flagship site to systems spanning hundreds of sites,
…

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Machine-readable: GET /v1/resolve?q=tag1.com · GET /v1/domain/tag1.com · this page as Accept: application/json or text/markdown · MCP lookup_domain

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Claim my listing on Agent Web Map for tag1.com:
1. POST https://agentwebmap.com/v1/sites/tag1.com/claims and keep claim_id and claim_secret private.
2. Publish the proof: add the line "AgentWebMap ownership: <token>" (token from step 1) to https://tag1.com/llms.txt, or use the DNS, meta-tag or well-known method the response describes.
3. POST https://agentwebmap.com/v1/sites/tag1.com/verify with {"claim_id": "...", "claim_secret": "..."}.
4. Save the api_key from the answer; it manages the listing (PATCH https://agentwebmap.com/v1/sites/tag1.com).
MCP equivalent: tools begin_ownership_claim, then verify_domain, at https://agentwebmap.com/mcp. Docs: https://agentwebmap.com/docs#verify

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