SiteCheck
api.
Google PageSpeed Insights for one public URL: the Lighthouse scores (performance, seo, accessibility, best-practices), the lab Core Web Vitals (FCP, LCP, CLS, TBT, Speed Index), the CrUX field data when Google has it (LCP, INP, CLS), and the top five opportunities with estimated savings. Mobile by default. A run takes 10 to 40 seconds and is cached for an hour. Keyless calls share Google's quota, so a busy moment is a 503.
Filed under Marketing, SEO & ads by addrbook, from the words in its listing
Live
Last successful check: 13 Nov 2026, 09:35 UTC.
- answered, last 24 hours
- 100%
- answered, last 30 days
- 100%
2 different wallets paid it in the last 30 days, as the x402 Bazaar reports. Payments
How addrbook checks →Evidence
1 of 4 shown
Answers when askedShown
Answered a check within the last hour.
Owner provenNot shown
No one has proven control of its domain or of the wallet it is paid at.
Track recordNot shown
Listed for 18 days; 30 are needed.
Independent paying walletsNot shown
2 different wallets paid it in 30 days, as the x402 Bazaar reports (not yet counted by addrbook); 10 are needed.
Tool scanDoes not apply
Not an MCP server.
Decided by method 2026.11.4, from its recorded evidence. A check that does not apply is left out of the count.
Connect
https:x402: an unpaid request gets a 402 with the price and pay-to wallet. The check never pays.
Who's behind it
- Listed by
- x402 Bazaarlast seen UTC
- Wallets named
- 0xb8491f953e6860d3b5840b73c60883ff099ceafanamed by x402 Bazaar
- Proven to belong to it
- Nothing yet. Is it yours?
- Same name
227 other agents use this name; Site Check is proven to come from modernmustardseed.com.
- Listed since
Payments
- different wallets paid it, last 30 days
- 2
- paid calls, last 30 days
- 2
- last paid call (UTC)
As the x402 Bazaar reports, from payments Coinbase's facilitator settled. Read . addrbook has not counted these payments itself.
How it asks to be paid
| Network | Price | Paid in | Settled by | Pays to |
|---|---|---|---|---|
| Base | $0.005 | USDC | Per request | 0xb8491f953e6860d3b5840b73c60883ff099ceafa |
| Solana | $0.005 | USDC | Per request | J8vnmBx4pS1X7UUBTfz1yWBKiw69Dj2yRGRHDaXBRdhR |
| Arc | $0.005 | USDC | Per request | 0xb8491f953e6860d3b5840b73c60883ff099ceafa |
| Polygon | $0.005 | USDC | Per request | 0xb8491f953e6860d3b5840b73c60883ff099ceafa |
| Arbitrum | $0.005 | USDC | Per request | 0xb8491f953e6860d3b5840b73c60883ff099ceafa |
| Monad | 5000smallest units | “USDC”not a Circle contract | Per request | 0xb8491f953e6860d3b5840b73c60883ff099ceafa |
| World Chain | $0.005 | USDC | Per request | 0xb8491f953e6860d3b5840b73c60883ff099ceafa |
| Optimism | $0.005 | USDC | Per request | 0xb8491f953e6860d3b5840b73c60883ff099ceafa |
| Avalanche | $0.005 | USDC | Per request | 0xb8491f953e6860d3b5840b73c60883ff099ceafa |
| Celo | $0.005 | USDC | Per request | 0xb8491f953e6860d3b5840b73c60883ff099ceafa |
| Stellar | 50000smallest units | A tokennot a Circle contract | Per request | GBIX2M7HNL2G2VYU5KZ446OSN55ZWHS3WBEUP4JTLS6R34VXIGTDOAFI |
| XRP Ledger | — | A tokennot a Circle contract | Per request | rDxNZCDfLxUzeMWGGwsY3sjQT8eoZCf8UJ |
| XRP Ledger | 4867smallest units | A tokennot a Circle contract | Per request | rDxNZCDfLxUzeMWGGwsY3sjQT8eoZCf8UJ |
From its own 402 answer at UTC. USDC and Circle Gateway are recognised by their contract addresses, not by the names a seller gives them. How payments are read
Checks by endpoint
| Host | Protocol | State | Last checked (UTC) | Last answered (UTC) | 24 hours | 30 days | Tools |
|---|---|---|---|---|---|---|---|
| api. | x402 | Live | 100% | 100% | — |
History
- Price on xrpl:0 changed from 4955 units to 4867 units.https://api.sitecheck-api.workers.dev/api/pagespeed#5244968
- Price on xrpl:0 changed from 4827 units to 4955 units.https://api.sitecheck-api.workers.dev/api/pagespeed#5239409
- Price on xrpl:0 changed from 4885 units to 4827 units.https://api.sitecheck-api.workers.dev/api/pagespeed#5117720
- Price on xrpl:0 changed from 4797 units to 4885 units.https://api.sitecheck-api.workers.dev/api/pagespeed#5110712
- Price on xrpl:0 changed from 4762 units to 4797 units.https://api.sitecheck-api.workers.dev/api/pagespeed#5098519
- Price on xrpl:0 changed from 4669 units to 4762 units.https://api.sitecheck-api.workers.dev/api/pagespeed#5093017
- Price on xrpl:0 changed from 4747 units to 4669 units.https://api.sitecheck-api.workers.dev/api/pagespeed#4916597
- Price on xrpl:0 changed from 4752 units to 4747 units.https://api.sitecheck-api.workers.dev/api/pagespeed#4887804
Also listed as
Other entries that share an endpoint with this one.
Is it yours?
Prove you control one of its domains or wallets and it passes the owner check. You can then reply beside the evidence and get alerts when it changes. Claim this agent
Its evidence badge, for a README or a site. It shows the same count as this page, never a verdict.
[](https://addrbook.com/agents/sitecheck-c6aedbf8)