# Northridge Ophthalmology Richard H Yook, Md And James C. Tan, Md, Phd: Agent-Direct Score F (4.6%)

Site: https://yookmd.com
Report: https://directindex.org/r/yookmd.com
Scanned: 2026-10-23 (Provisional, with the action test and the assistant citation check still to come. The hatched part of the bar isn't measured yet.)
Northridge Ophthalmology Richard H Yook, Md And James C. Tan, Md, Phd is largely invisible to agents.
AI assistants can't open Northridge Ophthalmology Richard H Yook, Md And James C. Tan, Md, Phd's website, so they go by what other sites say about it.

## Direct links
- Phone: 18189935410
- Address: 8719 Lindley Ave, 91325-3031, Northridge

## Nearby, also direct
Places near Northridge Ophthalmology Richard H Yook, Md And James C. Tan, Md, Phd that take a booking or an order on their own website, with no marketplace in between.
- Northridge Pet Hospital (250 m): https://directindex.org/r/northridgepethospital.net
- Northridge Animal Medical Center (810 m): https://directindex.org/r/northridgeamc.com
- A+ Orthodontics (830 m): https://directindex.org/r/orthoaplus.com
- Hilma Benjamin, Md (850 m): https://directindex.org/r/kidsandteensfoundation.org
- Meroujan Kodabakshian DDS (970 m): https://directindex.org/r/drkoda.com

## What to fix first
- **The site turns away every visitor that isn't a browser, AI agents included.** (+25 points) A plain fetch was refused (challenge:checking your browser). Only a real browser got the page. Every AI crawler and agent gets turned away the same way, so Reachable scores 0 and the rest is measured on the page as the browser rendered it. Ask the host to let the AI user agents through. Guide: https://directindex.org/guides/blocking-ai-crawlers-without-knowing
- **No structured data for the business.** (+14 points) Add schema.org JSON-LD for the business (Dentist, MedicalClinic, Physiotherapy or the closest type, with name, address, telephone and openingHoursSpecification). Every assistant reads this block first, and the fix kit below has it filled in. Guide: https://directindex.org/guides/structured-data-restaurant
- **No online booking link on the website.** (+13 points) There's only a phone number or WhatsApp, and agents can't use those yet. If you take bookings or orders through a platform, link to it from the site so agents can find it. Add an online appointment page. Guide: https://directindex.org/guides/book-direct-on-your-own-website
- **No list of services and prices found.** (+7 points) Agents answer 'what do they treat and what does it cost?' from directories instead. Add a page that lists services and prices as text, and link to it from the homepage. Guide: https://directindex.org/guides/menu-pdf-ai

## Fix kit: What to paste

Structured data (JSON-LD). Paste it as one block in the page's head, or in the builder's custom code box. Change anything that's wrong.

```html
<script type="application/ld+json">
{
  "@context": "https://schema.org",
  "@type": "LocalBusiness",
  "name": "Northridge Ophthalmology Richard H Yook, Md And James C. Tan, Md, Phd",
  "url": "https://yookmd.com",
  "telephone": "18189935410",
  "address": "8719 Lindley Ave, 91325-3031, Northridge",
  "geo": {
    "@type": "GeoCoordinates",
    "latitude": 34.2292394,
    "longitude": -118.5278301
  }
}
</script>
```

## Already right
- **robots.txt lets AI crawlers in.** There's no robots.txt, which means everything is allowed.

## Where it stands
2550 of 2992 in Los Angeles dentists, clinics and vets. Top 85% of the sites scanned in this index.

| What the top 10% of the index does | Top 10% | This site |
|---|---|---|
| Take bookings or orders on their own domain | 97% | no |
| Publish the menu or price list as HTML | 6% | no |
| Let AI crawlers in (no block at the server or in robots.txt) | 99% | no |
| Structured data with address, phone and hours | 29% | no |
| Have an llms.txt | 34% | no |

Nearest places in the index: Porter Veterinary Center (F, 250 m, https://directindex.org/r/portervet.com); Northridge Pet Hospital (D, 253 m, https://directindex.org/r/northridgepethospital.net); Northridge Animal Medical Center (C, 808 m, https://directindex.org/r/northridgeamc.com); Northridge Animal Medical Center (D, 820 m, https://directindex.org/r/northridge-dental.com); A+ Orthodontics (C, 834 m, https://directindex.org/r/orthoaplus.com); Hilma Benjamin, Md (C, 845 m, https://directindex.org/r/kidsandteensfoundation.org); Mj Dental Group (F, 931 m, https://directindex.org/r/megabusinessusa.com); Meroujan Kodabakshian DDS (C, 970 m, https://directindex.org/r/drkoda.com); Napeloni Dental (C, 971 m, https://directindex.org/r/napelonidental.com); Priority STD Testing Northridge (D, 990 m, https://directindex.org/r/prioritystdtesting.com).

## What assistants answer
The assistants haven't been asked about this business yet. They're asked about the top-ranked businesses in each city index, and about any business as soon as it's claimed. Claim this page to be included.

The assistants were asked 12 everyday questions about Los Angeles dentists, clinics and vets and named 61 places. Northridge Ophthalmology Richard H Yook, Md And James C. Tan, Md, Phd wasn't one of them. See who was named: https://directindex.org/city/los-angeles-clinics/recommended


Compared with its peers: Sites built with WordPress 55% (24% A or B, 217120 sites); This site 4.6%.

See what an AI agent reads on this site: https://directindex.org/r/yookmd.com/agent-view

## Businesses like Northridge Ophthalmology Richard H Yook, Md And James C. Tan, Md, Phd in Los Angeles dentists, clinics and vets

| Group | Sites | Avg score | A or B | This site |
|---|---|---|---|---|
| Businesses of the same kind in Los Angeles dentists, clinics and vets | 2992 | 45% | 16% | 4.6% |
| Sites built with WordPress in Los Angeles dentists, clinics and vets | 1185 | 56% | 26% | 4.6% |

The best of the sites built with WordPress in Los Angeles dentists, clinics and vets: Los Angeles Integrative Gastroenterology & Nutrition, Inc. (A 95.4%, https://directindex.org/r/laintegrativegi.com); Los Angeles Center For Endodontics (A 90.8%, https://directindex.org/r/lacenterendo.com); West LA Medical and Skincare (A 89.2%, https://directindex.org/r/westlaskincare.com); 395 Implants (A 86.2%, https://directindex.org/r/395implants.com); Brentwood LA Orthodontics | Dr. Amir Dadgar-Yeganeh (A 86.2%, https://directindex.org/r/brentwoodlaorthodontics.com).

With the three fixes above (The site turns away every visitor that isn't a browser, AI agents included; No structured data for the business; No online booking link on the website), the score would be about 84.6%. That would be 15th of 2,992 in Los Angeles dentists, clinics and vets, up from 2550th.

## The direct record
What agents get for Northridge Ophthalmology Richard H Yook, Md And James C. Tan, Md, Phd, as JSON: https://directindex.org/api/direct/yookmd.com
- Book: none on record
- Order: none on record
- Menu: none on record
- Hours: none on record
- Phone: 18189935410

## Can an agent transact?
Measured, not scored (the score stays at spec v1.0).
- UCP profile (/.well-known/ucp, Google and Shopify's Universal Commerce Protocol): no
- ACP discovery document (/.well-known/acp.json, OpenAI and Stripe's Agentic Commerce Protocol): no
- MCP server card (/.well-known/mcp/server-card.json): no
- Ordering vendor that takes agent orders (Square, Toast, or a vendor whose terms allow agents): no

Only a real browser got this page (a plain fetch got challenge:checking your browser); Readable and Actionable were measured on the rendered page.

## Score breakdown
| Component | Points | Available |
|---|---|---|
| Reachable | 0 | 25 |
| Readable | 1 | 25 |
| Actionable | 2 | 15 (the action test: pending) |
| Cited | 0 | 0 (the assistant citation check: pending) |

## Agent readiness (Cloudflare)
Not measured for this scan.
- JSON-LD for the business: no

Keep watching this business (https://directindex.org/r/yookmd.com/plan): the assistants are asked again every month, and you see what changed. 2 EUR a month or 19 EUR a year.
Deep report: https://directindex.org/r/yookmd.com/deep. Ten questions phrased the way people ask them, each assistant's full answer, the eight nearest similar places, the fix plan and a PDF. 5 EUR, paid once. Reading and scanning stay free. These few euros pay for the questions sent to the assistants and for the servers.
Methodology: https://directindex.org/methodology · Rescan now: https://directindex.org/scan?url=yookmd.com&force=1