hdc.org valid
HDC
- Authority
- 49 reach 7 · trust 10 · quality 17 · freshness 15
- Tier
- listed
- llms.txt
- https://hdc.org/llms.txt
- Sections
- 24
- Links
- 6112
- Size
- 590365 bytes
- Popularity rank
- #495636
- Registered
- 1995-11-03
- Country
- United States Hosting inference
- Hosting country
- United States Hosting inference
- Country evidence
- No published address evidence collected yet
- For agents
- Documentation: developer or product docs worth reading, nothing to call
- First seen
- 2026-10-19T10:43:39.696Z
- Last checked
- 2026-10-21T04:51:22.096Z
- Badge
Their llms.txt
The beginning of the file, from our validated copy saved 2026-10-21T04:51:13.510Z. Cached copy (size limited) · Source on hdc.org
Generated by All in One SEO v5.0.0.1, this is an llms.txt file, used by LLMs to index the site.
# HDC
## Sitemaps
- [XML Sitemap](https://hdc.org/sitemap.xml): Contains all public & indexable URLs for this website.
## Posts
- [HDC remembers Jeffrey Kroessler (1952-2023)](https://hdc.org/jeffrey-kroessler/)
- [](https://hdc.org/48421-2/)
- [2022 SIX TO CELEBRATE Applications Are Now Being Accepted!](https://hdc.org/2022-six-to-celebrate-applications-are-now-being-accepted/)
- [HAWTHORNE COURT APARTMENTS TESTIMONY](https://hdc.org/hawthorne-court-apartments-testimony/)
- [Designations at LPC … and Two Decalendarings](https://hdc.org/designations-at-lpc-and-two-decalendarings/)
- [The Shore Thing: A Practical Seminar on Shoring Methods and Case Studies for Historic Buildings-2010](https://hdc.org/the-shore-thing-a-practical-seminar-on-shoring-methods-and-case-studies-for-historic-buildings/)
- [Give LPC a Bigger Slice of the Pie!](https://hdc.org/give-lpc-a-bigger-slice-of-the-pie/)
- [Voices from the Neighborhood](https://hdc.org/voices-neighborhood-post/)
- [HDC@LPC - May 15, 2012](https://hdc.org/may-15-2012/)
- [Six to Celebrate App Privacy Policy](https://hdc.org/six-to-celebrate-app-privacy-policy/)
- [Six to Celebrate App](https://hdc.org/six-to-celebrate-app/)
- [LPC Designates Domino Sugar Factory](https://hdc.org/lpc-designates-domino-sugar-factory/)
- [150 Years of LGBT History - By the Landmarks Preservation Commission](https://hdc.org/150-years-lgbt-history-landmarks-preservation-commission-2/)
- [BK Live-Losing Our Churches](https://hdc.org/losing-churches/)
- [ALERT: Help Save Fort Greene](https://hdc.org/alert-help-save-fort-greene/)
- [NEWS: Wallabout preservation updates](https://hdc.org/news-wallabout-preservation-updates/)
- [Rezoning Victorian Flatbush](https://hdc.org/rezoning-victorian-flatbush/)
- [Preservation in the News](https://hdc.org/preservation-news/)
- [View All](https://hdc.org/programs-events-and-news/)
- [HAPPY HOLIDAYS FROM THE HISTORIC DISTRICTS COUNCIL](https://hdc.org/happy-holidays-historic-districts-council-2/)
- [Andrew Scott Dolkart in the NYT Sunday Routine](https://hdc.org/andrew-scott-dolkart-nyt-sunday-routine-2/)
- [Historic Pub Crawl- Pictures](https://hdc.org/historic-pub-crawl-pictures/)
- [Pictures of Recent Historic Districts Council Events](https://hdc.org/pictures-recent-historic-districts-council-events/)
- [Six To Celebrate Tour- Forest Close, Queens-Pictures](https://hdc.org/forest-close-pictures/)
- [Six To Celebrate Tours- Park Avenue, Manhattan-Pictures](https://hdc.org/park-avenue-pictures/)
- [Six To Celebrate Tours- Atlantic Avenue, Brooklyn-Pictures](https://hdc.org/six-celebrate-tours-atlantic-avenue-brooklyn-pictures/)
- [Congratulations to HDC Board Member Jack Taylor on his Victorian Society NY Lifetime Achievement Award](https://hdc.org/congratulations-hdc-board-member-jack-taylor-victorian-society-ny-lifetime-achievement-award/)
- [New York Public Library Drops Plan to Des
…Machine-readable: GET /v1/resolve?q=hdc.org · GET /v1/domain/hdc.org · this page as Accept: application/json or text/markdown · MCP lookup_domain
Automatically discovered from public files. Inclusion does not imply endorsement or publisher participation.
Own or manage this website?
If you own or manage hdc.org, you can update its listing and review file health, discovery activity and score history.
Manage this listing — optional
What verification unlocks
See how your site is discovered—and control what agents see.
- Control what agents see
Edit your listing description, tags, public contact details and additional llms.txt paths. Publish your terms for automated access, attribution and pricing.
- Make your profile eligible for search
A valid, listed, unblocked, verified profile can appear in our publisher sitemap and become eligible for search-engine visibility. Search engines decide what to index and rank.
- Appear in our llms-full.txt
Eligible verified publishers are listed by name, with their file links and summaries, in the service overview agents can read.
Free. No account registration, backlink or payment required. Public discovery remains available without verification.
Let your coding agent verify it
If your coding agent is authorized to manage this website, paste these instructions into it.
Claim my listing on Agent Web Map for hdc.org:
1. POST https://agentwebmap.com/v1/sites/hdc.org/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://hdc.org/llms.txt, or use the DNS, meta-tag or well-known method the response describes.
3. POST https://agentwebmap.com/v1/sites/hdc.org/verify with {"claim_id": "...", "claim_secret": "..."}.
4. Save the api_key from the answer; it manages the listing (PATCH https://agentwebmap.com/v1/sites/hdc.org).
MCP equivalent: tools begin_ownership_claim, then verify_domain, at https://agentwebmap.com/mcp. Docs: https://agentwebmap.com/docs#verifyCorrections or removal requests: contact the directory.