Explore the dynamics of our changing planet over the past three and a half decades.

Live view of Starlink internet satellites and coverage.

地铁数据库:提供中国地铁客流量查询,北京地铁客流查询,上海地铁客流查询,广州地铁客流查询,深圳地铁客流查询,成都地铁客流查询,南京地铁客流查询,武汉地铁客流查询,重庆地铁客流查询,西安地铁客流查询,长沙地铁客流查询...

OpenStreetMap's Blinking Beacons.

A virtual platform to walk around cities of the world and feel the vibes of the city. Listen to the sounds and choose day or night. You can also take a virtual walk along the best beaches, feel the waves next to you and be transported to that place.

Live HD webcams broadcasting from the world's best attractions and destinations, 100 million viewers are already hooked. Join them now!

Awesome Privacy - A curated list of services and alternatives that respect your privacy because PRIVACY MATTERS.

🔒 A compiled checklist of 300+ tips for protecting digital security and privacy in 2024

Protect your data against global mass surveillance programs.

电子邮件监控侵犯了我们的基本权利，威胁了言论自由。本指南将在四十分钟里教会你如何使用 GnuPG 加密。

天涯帖子备份

TL;DR当前版本后续可能会变 基本医疗保险: 职工/居民医保 长期医疗: 20年保证续保的百万医疗险/针对xxx人群的百万医疗，仔细阅读健康告知，能过健康告知的优先买百万医疗。年纪越大费用越贵 短期医疗险: <6年期的百万医疗险短期的百万医疗通常待遇都好于长期的不过也有傻逼产品。年纪越大费用越贵 普惠健康险：固定价格，是否患有既往症大部分都可以投保，只是既往症报销比例

A visualization of satellites, debris, and other objects tracked by LeoLabs in low earth orbit

Travel Remotely - Travel from home

Watch the path of a raindrop from anywhere in the United States.

QGIS is a free, open source, cross platform (lin/win/mac) geographical information system (GIS)

Air travel has been in existence for over one hundred years. Since its inception, thousands of airports runways have been built – each one of them designed site specifically, and according to landscape and natural conditions.

GPS log file viewer and analyzer with support for GPX, TCX, KML, FIT, IGC, NMEA, SLF, SML, LOC, GPI, GeoJSON and OziExplorer files.

Make smart choices to protect your privacy.
Search for products. Read expert reviews. Get tips and tricks.

Have I Been Pwned allows you to search across multiple data breaches to see if your email address or phone number has been compromised.

U2F USB token optimized for physical security, affordability, and style

'I have read and agree to the Terms' is the biggest lie on the web. Together, we can fix that.

让国行手机用上 eSIM：支持 iOS 写卡切卡、OTA 远程管理的可插拔 eSIM 卡。

数据无价，时常备份服务器中的数据是良好的习惯。Rclone 是一个命令行程序，用于将文件、目录与不同云存储提供商进行同步。利用 Rclone备份 VPS中的数据到onedrive、google drive等云盘中，保障我们的数据安全。

GPX - The GPS Exchange Format

This website shows a map of reddit. Each dot is a subreddit. Two dots within the same cluster are usually close to each other if multiple users frequently leave comments on both subreddits

This website allows you to select a city and then draws every single road on a screen.

TeleGeography's comprehensive and regularly updated interactive map of the world's major submarine cable systems and landing stations.

Travel, virtually: Immerse yourself in digital experiences at monuments and museums around the world.

Live Marine Traffic, Density Map and Current Position of ships in TAIWAN STRAIT

五级行政区划查询和下载网是一个提供中国从2010年到2023年的省市县乡村五级行政区划数据查询和下载的免费网站，省级矢量、市级矢量、县级矢量、乡镇级矢量和村级矢量

谷歌地图的 MyMaps 本身用于做行程规划，但是用来记录自己的旅行足迹似乎也是一个不错的玩法。

The Hitchhiker’s Guide to Online Anonymity

How to stay safe online and prevent phishing with FIDO2, WebAuthn and security keys. A look into YubiKeys, TOTP authenticator apps, passwordless and more.

A collection of awesome software, libraries, documents, books, resources and cools stuffs about security.

Overview of alternative open source front-ends for popular internet platforms (e.g. YouTube, Twitter, etc.)

一本面向新手的隐私教程。

尽管文中介绍的功能我们希望你永远用不上，但我们还是建议你花几分钟时间了解、设置。

五年前的今天我飞往西雅图参加亚马逊的面试。面试完后连夜做红眼航班飞往波士顿赶去参加老婆在MIT的博士答辩。答辩一半的时候电话响了，对方说恭喜你面试通过，想聊下薪水。我说其实就面了你们一家，直接给就是，先挂了。 [图片] 答辩完第二天跟老婆去市政局登记结婚。在宣誓厅门口排队的时候，老板打电话过来，很兴奋的说你来了后可以做这个做那个。我说是挺好的，但先要结婚去了。老板一愣，道了一声恭喜，继续往下说。我不得不打断：…