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中

Toys

A few lightweight interactions to open, try, and leave at any time.

Knowledge quizzes

Moegirlpedia quiz Read the Chinese anonymized introduction and choose the matching entry.

Starting a round makes one request to the Chinese Moegirlpedia API for a random batch of text introductions and categories. This page filters the round locally and replaces recognizable entry-title fragments in the Chinese clue with ⬛. Moegirlpedia can see the request, your IP address, and this site's Origin; this site uses no cookies, persistent storage, tracking, or images.

Artwork quiz (Cleveland Museum of Art) Choose the quiz direction and whether to show title, artist, or date.

Guess in either direction between a museum card and a complete artwork; choose the formats and whether cards show the title, artist, or date.

Anime protagonist quiz (AniList) Choose among three four-choice links between anime and their main characters.

Quick challenges

Color difference challenge Find the subtly different tile and see how far you can go.

Find the different tile among sixteen. By default, lightness, chroma, and hue changes are balanced. Each set contains three questions: get at least two right to move up; otherwise you move down. A correct answer adds 1 and a wrong answer subtracts 1, so the score may be negative.

Colors stay within a moderate lightness range. Every difference is checked again after conversion to final 8-bit RGB. This local game sends and stores no result, and it is not a color-vision test or medical assessment.

Ten-second estimate Stop as close to ten seconds as you can without watching a timer.

Start, count ten seconds in your head, then stop. No running clock is shown.

Up to 100 completed attempts are stored only in this browser. They are not uploaded, synced across devices, or ranked, and you can clear them from the history section.

Reaction time Wait for the signal, then respond as quickly as possible.

Start, wait for the signal, then press the same button as quickly as you can.

Up to 100 completed attempts and the early-press count are stored only in this browser. They are not uploaded, synced across devices, ranked, or used as an ability assessment, and you can clear them from the history section.

Logic puzzles

Number Wordle Use exact and digit-only matches to deduce the hidden number code.

Guess the hidden number code. Each matched digit counts in exactly one category: “Exact” means the digit and position both match; “Digit only” means the digit is present in a different position.

The code, settings, and round history stay only in this page’s memory. Nothing is sent or stored, and the result is not an assessment of intelligence or logical ability.

Make 24 Use each of four numbers once and combine them to make exactly 24.

Use all four numbers exactly once. Choose a left number, an operator, then a right number; after three exact operations, the last value must be 24.

The puzzle, settings, and steps stay only in this page’s memory. Nothing is sent or stored, and the result is not an assessment of mathematical ability.

Lights Out Flip a cell and its neighbours, then plan a route to turn every light off.

Pressing a cell flips it and its orthogonal neighbours. Turn every light off; there is no move limit.

The board, settings, and moves stay only in this page’s memory. Nothing is sent or stored, and the result is not an assessment.

Random generators

Random password Generate a configurable random password in your browser.

Random numbers Generate one or more random results from an integer range.

Utilities

Network latency and variation Inspect your current public-network attribution and compare typical HTTPS latency and variation across public DNS, a global edge, and fixed overseas metros.

Not started

Node selection 10/79 enabled
Automatic entry
Asia
Oceania
Europe
North America
South America
Africa

Current network

Sources are tried in order: IPIP.NET; only after failure, IP.SB. Used this time: —

Public IP / version
—
Carrier / network
—
Approximate region
—
Browser estimate
—

Node network latency

P50 ≤50 ms — Excellent ≤100 ms — Good ≤200 ms — Elevated latency >200 ms — Unstable
Variation ≤8 ms — Excellent ≤20 ms — Good ≤40 ms — Elevated latency >40 ms — Unstable
Global automatic entry · Tencent DNSPod
P50 —
Variation —
Show details
Live diagnostics
Overall reference
—
Latest sample
—
Success/measured
—
P95
—
Maximum
—
Failures
—
Spikes
—
Node source and characteristics
Finest location
Officially listed entry clusters in Beijing, Shanghai, Guangzhou, Hong Kong, and North America; the actual landing point is not visible here
Network type
Public recursive DNS; multi-carrier BGP Anycast access
Measurement
DoH GET; small DNS query
Characteristics
BGP Anycast-selected and may enter Mainland China, Hong Kong, or North America; the browser response is opaque, so HTTP status and the actual PoP cannot be verified
Global automatic entry · Alibaba Public DNS
P50 —
Variation —
Show details
Live diagnostics
Overall reference
—
Latest sample
—
Success/measured
—
P95
—
Maximum
—
Failures
—
Spikes
—
Node source and characteristics
Finest location
Official global public recursive service with published domestic and overseas nodes; the actual landing point is not visible here
Network type
Global public recursive DNS; service-directed entry
Measurement
DoH GET; small DNS query
Characteristics
Opaque browser response; timing and transport failures are visible, but HTTP status and actual PoP are not
Global nearby · Cloudflare
P50 —
Variation —
Show details
Live diagnostics
Overall reference
—
Latest sample
—
Success/measured
—
P95
—
Maximum
—
Failures
—
Spikes
—
Node source and characteristics
Finest location
Anycast-selected; the actual edge city is not readable here
Network type
Cloudflare global edge network
Measurement
Official zero-byte download endpoint
Characteristics
Success status is readable; the actual edge, intermediate carriers, and return path are unknown
Hong Kong SAR · Hong Kong · HostHatch
P50 —
Variation —
Show details
Live diagnostics
Overall reference
—
Latest sample
—
Success/measured
—
P95
—
Maximum
—
Failures
—
Spikes
—
Node source and characteristics
Finest location
Hong Kong SAR; HostHatch's official Looking Glass identifies the facility as Equinix HK1
Network type
HostHatch public-cloud Internet network; official Looking Glass
What is HostHatch?
HostHatch is an international cloud provider; this page connects to its public Looking Glass health endpoints. Official website
Measurement
HTTPS GET; approximately 0.2 KB health response; opaque to the browser
Characteristics
Fixed facility; timing and transport failures are visible, but HTTP status, intermediate carriers, and return path are not
Japan · Tokyo · HostHatch
P50 —
Variation —
Show details
Live diagnostics
Overall reference
—
Latest sample
—
Success/measured
—
P95
—
Maximum
—
Failures
—
Spikes
—
Node source and characteristics
Finest location
Tokyo, Japan; HostHatch's official Looking Glass identifies the facility as Equinix TY8
Network type
HostHatch public-cloud Internet network; official Looking Glass
What is HostHatch?
HostHatch is an international cloud provider; this page connects to its public Looking Glass health endpoints. Official website
Measurement
HTTPS GET; approximately 0.2 KB health response; opaque to the browser
Characteristics
Fixed facility; timing and transport failures are visible, but HTTP status, intermediate carriers, and return path are not
Japan · Tokyo · Vultr
P50 —
Variation —
Show details
Live diagnostics
Overall reference
—
Latest sample
—
Success/measured
—
P95
—
Maximum
—
Failures
—
Spikes
—
Node source and characteristics
Finest location
Tokyo metro, Japan (NRT); exact facility undisclosed
Network type
Vultr public-cloud Internet network
What is Vultr?
Vultr is an international cloud provider launched by Constant in 2014; this page connects to its public Looking Glass. Official overview
Measurement
HTTPS HEAD; zero response body
Characteristics
Fixed metro; status is CORS-readable; intermediate carriers and return path are unknown
Japan · Tokyo · Akamai / Linode
P50 —
Variation —
Show details
Live diagnostics
Overall reference
—
Latest sample
—
Success/measured
—
P95
—
Maximum
—
Failures
—
Spikes
—
Node source and characteristics
Finest location
Tokyo, Japan; the official speed-test page does not disclose the exact facility
Network type
Akamai Connected Cloud public Internet network; Linode speed-test host
What are Akamai / Linode?
Akamai provides cloud computing, cybersecurity, and content delivery, and acquired Linode in 2022. These are regional Linode speed-test hosts for Akamai Cloud, not nearby CDN edges. Official speed-test page
Measurement
HTTPS HEAD; zero response body; opaque to the browser
Characteristics
Official fixed-region speed-test host; timing and transport failures are visible, but HTTP status, intermediate carriers, and return path are not
Singapore · Singapore · HostHatch
P50 —
Variation —
Show details
Live diagnostics
Overall reference
—
Latest sample
—
Success/measured
—
P95
—
Maximum
—
Failures
—
Spikes
—
Node source and characteristics
Finest location
Singapore; HostHatch's official Looking Glass identifies the facility as Epsilon Global Hubs
Network type
HostHatch public-cloud Internet network; official Looking Glass
What is HostHatch?
HostHatch is an international cloud provider; this page connects to its public Looking Glass health endpoints. Official website
Measurement
HTTPS GET; approximately 0.2 KB health response; opaque to the browser
Characteristics
Fixed facility; timing and transport failures are visible, but HTTP status, intermediate carriers, and return path are not
Germany · Frankfurt · Vultr
P50 —
Variation —
Show details
Live diagnostics
Overall reference
—
Latest sample
—
Success/measured
—
P95
—
Maximum
—
Failures
—
Spikes
—
Node source and characteristics
Finest location
Frankfurt metro, Germany (FRA); exact facility undisclosed
Network type
Vultr public-cloud Internet network
What is Vultr?
Vultr is an international cloud provider launched by Constant in 2014; this page connects to its public Looking Glass. Official overview
Measurement
HTTPS HEAD; zero response body
Characteristics
Fixed metro; status is CORS-readable; intermediate carriers and return path are unknown
United States · Los Angeles · Vultr
P50 —
Variation —
Show details
Live diagnostics
Overall reference
—
Latest sample
—
Success/measured
—
P95
—
Maximum
—
Failures
—
Spikes
—
Node source and characteristics
Finest location
Los Angeles metro, California, US (LAX); exact facility undisclosed
Network type
Vultr public-cloud Internet network
What is Vultr?
Vultr is an international cloud provider launched by Constant in 2014; this page connects to its public Looking Glass. Official overview
Measurement
HTTPS HEAD; zero response body
Characteristics
Fixed metro; status is CORS-readable; intermediate carriers and return path are unknown

Test requests reveal your public IP, browser identifier, and request time to the corresponding providers. A complete test sends one warm-up plus 60 recorded requests to each enabled node. Current-network details try IPIP.NET once, then IP.SB once only if the first source fails; when the Cloudflare node is enabled, its existing response may provide an IP-only last fallback. This page stores neither results nor node choices, uses no cookies, localStorage, or sessionStorage, and does not continue testing in the background.

Apple gift code to camera-scannable card (external) Turn a text gift code that would otherwise need typing into a card an Apple device can scan with its camera; diax7's third-party page provides the conversion, and this site does not handle the code. Visit diax7.github.io (new tab)

Comments

Comments are public and stored in GitHub Discussions. This page connects to giscus.app and GitHub and sends the current page path only after you show comments manually or enable automatic loading. The first load is about 0.13 MB; actual usage varies with comment content. Do not include private information.

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