# Houston Retina Associates: Agent-Direct Score D (42%)

Site: http://www.hretina.com
Report: https://directindex.org/r/hretina.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.)
Houston Retina Associates is hard for agents to use.
Some AI assistants are turned away by Houston Retina Associates's website. It can't find a menu or price list, so it answers from other sites. It finds a way to book or order directly on the site.

## Direct links
- Book directly: https://www.hretina.com/patient-resources/request-appointment (on the business's own site)
- Phone: +12814952222
- Address: 13300 Hargrave Rd, 77070-3128, Houston

## Nearby, also direct
Places near Houston Retina Associates that take a booking or an order on their own website, with no marketplace in between.
- Sam Houston Heart & Vascular Center (210 m): https://directindex.org/r/samhoustonheart.com
- Westside Podiatry (210 m): https://directindex.org/r/westsidepodiatry.com
- Texas Digestive Disease Consultants: Houston - Willowbrook (220 m): https://directindex.org/r/tddctx.com
- Htx Prosthetics (940 m): https://directindex.org/r/htxprosthetics.com

## What to fix first
- **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
- **The server turns AI crawlers away at the door.** (+10 points) Requests as GPTBot (http_403), ClaudeBot (http_403), PerplexityBot (challenge:access denied) were refused, but a normal browser got the page. That's usually a bot list at the host or in a firewall that the owner never chose. Ask the host to allow these user agents. Guide: https://directindex.org/guides/blocking-ai-crawlers-without-knowing
- **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
- **robots.txt blocks GPTBot, ClaudeBot, Google-Extended.** (+3.7 points) These are the crawlers behind ChatGPT, Claude, Perplexity and Google's AI features. Remove the Disallow lines for them, or add explicit Allow rules. Guide: https://directindex.org/guides/robots-txt-for-ai-agents
- **No llms.txt.** (no points, but worth doing) Optional for now and cheap to add. It's a short text file that describes the business for language models. Guide: https://directindex.org/guides/llms-txt-for-a-business

## 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": "Houston Retina Associates",
  "url": "http://www.hretina.com",
  "telephone": "+12814952222",
  "address": "13300 Hargrave Rd, 77070-3128, Houston",
  "geo": {
    "@type": "GeoCoordinates",
    "latitude": 29.9678346,
    "longitude": -95.55192034999999
  },
  "potentialAction": [
    {
      "@type": "ReserveAction",
      "target": {
        "@type": "EntryPoint",
        "urlTemplate": "https://www.hretina.com/patient-resources/request-appointment",
        "actionPlatform": [
          "http://schema.org/DesktopWebPlatform",
          "http://schema.org/MobileWebPlatform"
        ]
      },
      "result": {
        "@type": "Reservation",
        "name": "Reservation"
      }
    }
  ]
}
</script>
```

robots.txt. Add these lines to /robots.txt and delete any Disallow rule that names these crawlers.

```
# Let AI assistants read the site: they send people to you; a marketplace keeps them.
# Remove any Disallow lines for these names elsewhere in this file.
User-agent: GPTBot
Allow: /

User-agent: ClaudeBot
Allow: /

User-agent: PerplexityBot
Allow: /

User-agent: Google-Extended
Allow: /

User-agent: OAI-SearchBot
Allow: /

User-agent: ChatGPT-User
Allow: /

User-agent: Claude-User
Allow: /

User-agent: Perplexity-User
Allow: /
```

llms.txt. Save as /llms.txt at the root of the site.

```
# Houston Retina Associates

> local business in 13300 Hargrave Rd, 77070-3128, Houston, Houston dentists, clinics and vets. Phone +12814952222.

## Book or order directly

- Book: https://www.hretina.com/patient-resources/request-appointment (on the business's own site)

## About

- Website: http://www.hretina.com
- This file follows llms.txt (https://llmstxt.org): a short plain-text description for language models.
```

## Already right
- **Appointments on your own site.** Agents can book an appointment without going through a marketplace.

## Where it stands
1671 of 2375 in Houston dentists, clinics and vets. Top 70% 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% | yes |
| Publish the menu or price list as HTML | 6% | no |
| Let AI crawlers in (no block at the server or in robots.txt) | 98% | no |
| Structured data with address, phone and hours | 44% | no |
| Have an llms.txt | 39% | no |

Nearest places in the index: Willowbrook Cardiovascular: Nielsen Anton P Md (C, 14 m, https://directindex.org/r/willowbrookcardiovascular.com); K. Mathew Warnock, MD (D, 151 m, https://directindex.org/r/warnockmd.com); Turnquest Surgical Solutions (D, 181 m, https://directindex.org/r/dturnquest.com); Sam Houston Heart & Vascular Center (C, 208 m, https://directindex.org/r/samhoustonheart.com); Westside Podiatry (F, 209 m, https://directindex.org/r/westsidepodiatry.com); Milepost Medical, PA (C, 219 m, https://directindex.org/r/milepostmedical.com); Texas Digestive Disease Consultants: Houston - Willowbrook (C, 219 m, https://directindex.org/r/tddctx.com); Open Door Pediatric Therapy (C, 784 m, https://directindex.org/r/opendoorpt.com); Southwest Veterinary Dermatology (F, 914 m, https://directindex.org/r/southwestvetderm.com); Htx Prosthetics (C, 937 m, https://directindex.org/r/htxprosthetics.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 Houston dentists, clinics and vets and named 59 places. Houston Retina Associates wasn't one of them. See who was named: https://directindex.org/city/houston-clinics/recommended


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

## Businesses like Houston Retina Associates in Houston dentists, clinics and vets

| Group | Sites | Avg score | A or B | This site |
|---|---|---|---|---|
| Businesses of the same kind in Houston dentists, clinics and vets | 2375 | 50% | 20% | 42% |

The best of the businesses of the same kind in Houston dentists, clinics and vets: Belage Center (A 95.4%, https://directindex.org/r/belagecenter.com); NeuMed Modern Urgent Care and IV Therapy (A 95.4%, https://directindex.org/r/neumed.com); Fastest Labs (A 89.2%, https://directindex.org/r/fastestlabs.com); Skin Pharm (A 89.2%, https://directindex.org/r/skinpharm.com); The Ruby Postnatal (A 87.7%, https://directindex.org/r/therubypostnatal.com).

With the three fixes above (No structured data for the business; The server turns AI crawlers away at the door; No list of services and prices found), the score would be about 89.7%. That would be 3rd of 2,375 in Houston dentists, clinics and vets, up from 1671st.

## The direct record
What agents get for Houston Retina Associates, as JSON: https://directindex.org/api/direct/hretina.com
- Book: https://www.hretina.com/patient-resources/request-appointment (own site; found by the scan of 2026-10-23, not yet tested)
- Order: none on record
- Menu: none on record
- Hours: none on record
- Phone: +12814952222
- Stable links that count: https://directindex.org/go/hretina.com/book

## 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

## Score breakdown
| Component | Points | Available |
|---|---|---|
| Reachable | 11.3 | 25 |
| Readable | 1 | 25 |
| Actionable | 15 | 15 (the action test: pending) |
| Cited | 0 | 0 (the assistant citation check: pending) |

## Agent readiness (Cloudflare)
Level 2 of 5, Bot-Aware. Cloudflare's report: https://isitagentready.com/hretina.com
- Link headers on the homepage: no (how: https://isitagentready.com/.well-known/agent-skills/link-headers/SKILL.md)
- sitemap.xml: yes
- AI bot rules in robots.txt: yes
- Content Signals in robots.txt: yes
- Markdown on Accept: text/markdown: no (how: https://isitagentready.com/.well-known/agent-skills/markdown-negotiation/SKILL.md)
- llms.txt: no (how: https://isitagentready.com/.well-known/agent-skills/llms-txt/SKILL.md)
- API catalog (RFC 9727): no (how: https://isitagentready.com/.well-known/agent-skills/api-catalog/SKILL.md)
- MCP server card: no (how: https://isitagentready.com/.well-known/agent-skills/mcp-server-card/SKILL.md)
- A2A agent card: no (how: https://isitagentready.com/.well-known/agent-skills/a2a-agent-card/SKILL.md)
- Agent Skills index: no (how: https://isitagentready.com/.well-known/agent-skills/agent-skills/SKILL.md)
- OAuth or OIDC discovery: no (how: https://isitagentready.com/.well-known/agent-skills/oauth-discovery/SKILL.md)
- OAuth protected resource metadata: no (how: https://isitagentready.com/.well-known/agent-skills/oauth-protected-resource/SKILL.md)
- auth.md: no (how: https://isitagentready.com/.well-known/agent-skills/auth-md/SKILL.md)
- Web Bot Auth key directory: no (how: https://isitagentready.com/.well-known/agent-skills/web-bot-auth/SKILL.md)
- ARD capability manifest: no (how: https://isitagentready.com/.well-known/agent-skills/ard/SKILL.md)
- DNS-AID records: no (how: https://isitagentready.com/.well-known/agent-skills/dns-aid/SKILL.md)
- WebMCP tools on the page: no (how: https://isitagentready.com/.well-known/agent-skills/webmcp/SKILL.md)
- JSON-LD for the business: no

Keep watching this business (https://directindex.org/r/hretina.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/hretina.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=hretina.com&force=1