# Dr. Robert Phong Ho DDS: Agent-Direct Score F (0%)

Site: https://zentist.io/clinics/us/dr-robert-p-ho-dds/dr-robert-p-ho-dds
Report: https://directindex.org/r/zentist.io
Scanned: 2026-10-24 (Provisional, with the assistant citation check still to come. The hatched part of the bar isn't measured yet.)
The scanner couldn't reach Dr. Robert Phong Ho DDS's website on 2026-10-24 (challenge:access denied). Rescans are free.
AI assistants can't open Dr. Robert Phong Ho DDS's website, so they go by what other sites say about it.

## Direct links
- Book directly: https://assets.calendly.com/assets/external/widget.js (through calendly acting for the business)
- Phone: (415) 386-0666
- Address: 307 12th Ave, 94118, San Francisco

## Nearby, also direct
Places near Dr. Robert Phong Ho DDS that take a booking or an order on their own website, with no marketplace in between.
- Lily Voong - Dds (310 m): https://directindex.org/r/sfdentaloffice.com
- Hearing and Low Vision Solutions (370 m): https://directindex.org/r/hearsf.com
- Kauno (460 m): https://directindex.org/r/kauno.health
- Richmond Dental Care (480 m): https://directindex.org/r/richmondfamilydentalcare.com

## What to fix first
- **The site couldn't be read at all.** There's a bot challenge in front of the site (challenge:access denied), so a plain fetch never gets to the page. A real browser tried too and got http_404.

## Already right
- Nothing.

## Where it stands
869 of 927 in San Francisco dentists, clinics and vets. Top 94% 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 | 5% | no |
| Let AI crawlers in (no block at the server or in robots.txt) | 99% | no |
| Structured data with address, phone and hours | 26% | no |
| Have an llms.txt | 20% | yes |

Nearest places in the index: Turtle Rabbit Physical Therapy and Integrative Performance (D, 54 m, https://directindex.org/r/turtlerabbitsf.com); Wayne M Wong Dds (F, 66 m, https://directindex.org/r/smilesbywayne.com); Island Dental (F, 293 m, https://directindex.org/r/bit.ly); Lily Voong - Dds (B, 312 m, https://directindex.org/r/sfdentaloffice.com); Clement Street Dental (D, 325 m, https://directindex.org/r/blouieddsinc.com); Hearing and Low Vision Solutions (B, 370 m, https://directindex.org/r/hearsf.com); San Francisco Foot & Ankle Group (F, 434 m, https://directindex.org/r/sffeet.com); Kauno (B, 461 m, https://directindex.org/r/kauno.health); Raymond H Katz DDS (C, 472 m, https://directindex.org/r/sfdds4kids.com); Richmond Dental Care (C, 482 m, https://directindex.org/r/richmondfamilydentalcare.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 San Francisco dentists, clinics and vets and named 53 places. Dr. Robert Phong Ho DDS wasn't one of them. See who was named: https://directindex.org/city/san-francisco-clinics/recommended


Compared with its peers: Sites using Calendly 62% (32% A or B, 1170 sites); This site 0%.

## Businesses like Dr. Robert Phong Ho DDS in San Francisco dentists, clinics and vets

| Group | Sites | Avg score | A or B | This site |
|---|---|---|---|---|
| Businesses of the same kind in San Francisco dentists, clinics and vets | 927 | 49% | 17% | 0% |
| Sites using Calendly in San Francisco dentists, clinics and vets | 7 | 58% | 0% | 0% |

The best of the sites using Calendly in San Francisco dentists, clinics and vets: Avid Sports Medicine (C 67.7%, https://directindex.org/r/avidsportsmed.com); Dayone Baby (C 67.7%, https://directindex.org/r/dayonebaby.com); SF Pediatric Dentistry (C 58%, https://directindex.org/r/sfpediatricdentistry.com); Lisa Capaldini, Md (C 55.4%, https://directindex.org/r/signaturemd.com); SignatureMD (C 55.4%, https://directindex.org/r/signaturemd.com).

## The direct record
What agents get for Dr. Robert Phong Ho DDS, as JSON: https://directindex.org/api/direct/zentist.io
- Book: https://assets.calendly.com/assets/external/widget.js (vendor on own site: Calendly; found by the scan of 2026-10-24, not yet tested)
- Order: none on record
- Menu: none on record
- Hours: none on record
- Phone: (415) 386-0666
- Stable links that count: https://directindex.org/go/zentist.io/book

## Score breakdown
| Component | Points | Available |
|---|---|---|
| Reachable | 0 | 25 |
| Readable | 0 | 25 |
| Actionable | 0 | 30 |
| 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/zentist.io/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/zentist.io/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=zentist.io&force=1