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California Native Plant Society — 18 websites ranked by shared content topics, category and on-page relevance.

Each result shows its full tech stack, contacts and AI-policy — not just a name · Browse all sites in Environment →

Domain	Match	Title	Country/Lang	Category	AI files	Contact	AI-protection
nwf.org ↗	55 match shared topic	National Wildlife Federation	United States~ en	environment	robotsllmsaihumans	emailphone	none
butterfly-conservation.org ↗	55 match shared topic	Home page \| Butterfly Conservation	en	environment Drupal	robotsllmsaihumans	emailphone	partial · 8
gwct.org.uk ↗	55 match shared topic	Game & Wildlife Conservation Trust - The GWCT	United Kingdom en	environment	robotsllmsaihumans	emailphone	none
woodlandtrust.org.uk ↗	37 match shared topic	UK's Largest Woodland Conservation Charity - Woodland Trust	United Kingdom en	parks-and-nature	robotsllmsaihumans	emailphone	none
cwf-fcf.org ↗	37 match shared topic	Canadian Wildlife Federation: Your Connection with Wildlife	en	nature Adobe Experience Manager Shopify	robotsllmsaihumans	emailphone	none
scottishwildlifetrust.org.uk ↗	37 match shared topic	Scottish Wildlife Trust - Scotland's leading nature conservation charity	United Kingdom en	environment WordPress WooCommerce	robotsllmsaihumans	emailphone	none
audubon.org ↗	35 match shared topic	National Audubon Society	United States~ en	environment Drupal	robotsllmsaihumans	emailphone	none
plant-for-the-planet.org ↗	35 match shared topic	Plant-for-the-Planet \| Trillion Trees for Climate Justice	en	environment WordPress WooCommerce	robotsllmsaihumans	emailphone	none
treedom.net ↗	35 match shared topic	Treedom \| Plant or Gift Trees for Environmental Regeneration	en	environment	robotsllmsaihumans	emailphone	none
seashepherd.org ↗	35 match shared topic	Home — Sea Shepherd Conservation Society	en	environment WordPress WooCommerce	robotsllmsaihumans	emailphone	none
wildlife.org ↗	35 match shared topic	The Wildlife Society - For Wildlife Professionals, Students & Advocates	en	environment WordPress	robotsllmsaihumans	emailphone	none
esa.org ↗	35 match shared topic	Ecological Society of America – The Nation's Largest Community of Ecologists	en	environment WordPress	robotsllmsaihumans	email phone	none
justonetree.life ↗	35 match shared topic	JUST ONE Tree - £1 plants 1 Tree. Combat Climate Change through reforestation.	en	environment Weebly	robotsllmsaihumans	emailphone	none
lets-plant.org ↗	35 match shared topic	Home \| Let's Plant!	en	environment Drupal	robotsllmsaihumans	emailphone	none
plantlife.org.uk ↗	35 match shared topic	Plantlife	United Kingdom en	environment WordPress	robots llmsaihumans	emailphone	none
ecologyandsociety.org ↗	35 match shared topic	Home - Ecology & Society	en	environment WordPress	robots llmsaihumans	emailphone	partial · 8
wilderness.org ↗	35 match shared topic	Homepage \| The Wilderness Society	en	environment Drupal	robotsllmsaihumans	email phone	none
salmonsafe.org ↗	35 match shared topic	Salmon-Safe protects rivers, native salmon and watersheds in the Pacific Northwest \| Salmon-Safe	en	environment WordPress	robotsllmsaihumans	emailphone	none

How the match score works

Each match is a 0–100 similarity score — the higher it is, the more two sites resemble one another. It’s computed automatically from our own crawl data (never from what a site says about itself) by combining several independent signals, so a high score means several of them point the same way:

shared topics how many of the same fine‑grained content topics (IAB sub‑categories) both sites cover — the main signal.
same category whether they sit in the same business / industry category.
content & title how closely their titles and page descriptions line up in wording and meaning.

No single signal decides the result — they’re blended together. Treat the score as a way to rank candidates rather than an absolute percentage; the chips on each result show which signals contributed.