pingcoin.com valid
Pingcoin — Acoustic Coin Authentication
Pingcoin verifies precious metal coins using acoustic analysis (the "ping test"). Test coins **free in your browser** at pingcoin.com — no app download required.
- Authority
- 45 reach 0 · trust 10 · quality 20 · freshness 15
- Tier
- listed
- llms.txt
- https://pingcoin.com/llms.txt
- llms-full.txt
- https://pingcoin.com/llms-full.txt
- Sections
- 11
- Links
- 0
- Size
- 7295 bytes
- Registered
- 2012-07-19
- Country
- — Publisher location unknown; CDN address excluded
- Country evidence
- No published address evidence collected yet
- First seen
- 2026-10-23T21:44:48.686Z
- Last checked
- 2026-10-23T21:44:48.987Z
- Badge
Their llms.txt
The beginning of the file, from our validated copy saved 2026-10-23T21:44:48.689Z. Cached copy · Source on pingcoin.com
# Pingcoin — Acoustic Coin Authentication
> Pingcoin verifies precious metal coins using acoustic analysis (the "ping test"). Test coins **free in your browser** at pingcoin.com — no app download required.
## 🌐 Free Online Ping Test (Browser-Based)
**You can test coins directly in your web browser at pingcoin.com** — no download or account needed.
Each coin has a dedicated verification page with an interactive acoustic analyzer:
- Visit the coin's page (e.g., https://pingcoin.com/coins/1-oz-gold-american-eagle)
- Click "Start Recording" and tap your coin
- Get instant frequency analysis and authenticity verdict
This works on any device with a microphone — desktop, laptop, phone, or tablet.
## Quick Facts
- **Web App:** Free online ping test at pingcoin.com/coins/[coin-name]
- **Mobile App:** Android and iOS apps for on-the-go testing
- **How:** Analyzes acoustic resonance frequencies when you tap a coin
- **Pricing:** Web is free, App is free (10 verdicts/month) or $29/year unlimited
- **Coins Supported:** 39 types (25 silver, 14 gold)
- **Privacy:** Works offline in the app, no data leaves your device
## Online Coin Verification Pages
Direct links to test each coin type in your browser:
### Gold Coins
- American Gold Eagle: https://pingcoin.com/coins/1-oz-gold-american-eagle
- Canadian Gold Maple Leaf: https://pingcoin.com/coins/1-oz-gold-maple-leaf
- South African Krugerrand: https://pingcoin.com/coins/1-oz-gold-krugerrand
- Austrian Gold Philharmonic: https://pingcoin.com/coins/1-oz-gold-philharmonic
- British Gold Britannia (2013+): https://pingcoin.com/coins/1-oz-gold-britannia
- British Gold Britannia (1990-2012): https://pingcoin.com/coins/1-oz-gold-britannia-1990-2012
- Chinese Gold Panda: https://pingcoin.com/coins/1-oz-gold-panda
- Australian Gold Kangaroo: https://pingcoin.com/coins/1-oz-gold-kangaroo
- American Gold Buffalo: https://pingcoin.com/coins/1-oz-gold-buffalo
- British Gold Sovereign: https://pingcoin.com/coins/gold-sovereign
- Saint-Gaudens Double Eagle: https://pingcoin.com/coins/-gold-saint-gaudens-double-eagle
- Austrian 100 Corona: https://pingcoin.com/coins/corona-100
- Mexican Gold Libertad (1/2 oz): https://pingcoin.com/coins/1-2-oz-gold-libertad
- Iranian Azadi: https://pingcoin.com/coins/azadi
### Silver Coins
- American Silver Eagle: https://pingcoin.com/coins/1-oz-silver-american-eagle
- Canadian Silver Maple Leaf: https://pingcoin.com/coins/1-oz-silver-maple-leaf
- British Silver Britannia: https://pingcoin.com/coins/1-oz-silver-britannia
- Austrian Silver Philharmonic: https://pingcoin.com/coins/1-oz-silver-philharmonic
- Australian Silver Kangaroo: https://pingcoin.com/coins/1-oz-silver-kangaroo
- Australian Silver Kookaburra: https://pingcoin.com/coins/1-oz-silver-kookaburra
- Australian Silver Koala: https://pingcoin.com/coins/1-oz-silver-koala
- Mexican Silver Libertad: https://pingcoin.com/coins/1-oz-silver-libertad
- Chinese Silver Panda: https://pingcoin.com/coins/1-oz-silver-panda
- South Af
…Machine-readable: GET /v1/resolve?q=pingcoin.com · GET /v1/domain/pingcoin.com · 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 pingcoin.com, 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.
- See your website in the map
Review your indexed topics, nearby publishers sharing headings, measured listing exposure and map snapshots in a private report for your website.
- 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 pingcoin.com:
1. POST https://agentwebmap.com/v1/sites/pingcoin.com/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://pingcoin.com/llms.txt, or use the DNS, meta-tag or well-known method the response describes.
3. POST https://agentwebmap.com/v1/sites/pingcoin.com/verify with {"claim_id": "...", "claim_secret": "..."}.
4. Save the api_key from the answer; it manages the listing (PATCH https://agentwebmap.com/v1/sites/pingcoin.com).
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.