How does PageSourceSearch know what java2-top.vercel.app is built with?

From the site's own source code. The crawler stores the exact bytes of its pages and first-party scripts; the libraries are recognised by fingerprinting that code against known releases, the identifiers are read out of the tag snippets, and the third-party hosts are the script, iframe and stylesheet sources in the HTML and the absolute URLs inside the scripts. Nothing is inferred from headers or guessed.

How far back does the history of java2-top.vercel.app go?

To the first crawl the timeline lists. Every crawl records what the site looked like; when a file's content changes, its earlier version stays viewable because the stored chunks are never deleted, only mapped. A crawl that finds a file unchanged adds no copy.

Can I see an older version of a script from java2-top.vercel.app?

Yes. In the stored files list, every date under a file opens the version that was live at that crawl, with the same viewer as the current one. The raw bytes can be downloaded from there.

Which other websites use the same tracking IDs as java2-top.vercel.app?

Each identifier links to its reverse lookup, the list of every site in the index whose source carries the same id: the sites one analytics property or tag manager container is shared across.

Site profile

java2-top.vercel.app

Built with @clerk/ui 1.34.0, @inkeep/cxkit-js 0.5.119, spectorjs 0.9.33, @moveo-ai/web-client 0.117.0, artplayer-plugin-vast 1.0.0, @ant-design/x 2.9.0, @joyfill/components 4.0.0-rc26, @chainlink/cl-search-frontend 0.13.2. 5 pages and 124 stored files, last crawled 2026-10-03.

8 libraries 0 identifiers 91 third-party hosts 1 crawl open the site

Technologies and libraries

Recognised by fingerprinting the stored files and bundles against known releases; a version is the release the bytes match.

Library	Version	Seen
@clerk/ui	1.34.0	2026-10-03
@inkeep/cxkit-js	0.5.119	2026-10-03
spectorjs	0.9.33	2026-10-03
@moveo-ai/web-client	0.117.0	2026-10-03
artplayer-plugin-vast	1.0.0	2026-10-03
@ant-design/x	2.9.0	2026-10-03
@joyfill/components	4.0.0-rc26	2026-10-03
@chainlink/cl-search-frontend	0.13.2	2026-10-03

Tracking, tag and verification IDs

No analytics property, tag manager container, pixel or site-verification token was found in the stored source.

Third-party hosts

Hosts outside java2-top.vercel.app that its pages load scripts, frames or stylesheets from, and that its own scripts name in absolute URLs (connect). Each links to every site loading from the same host.

Host	Loaded as	Found in
blog-img.coolsen.cn	connect	view source
blog.csdn.net	connect	view source
book.douban.com	connect	view source
camo.githubusercontent.com	connect	view source
cdn.jsdelivr.net	connect	view source
cdn.nlark.com	connect	view source
cdn.tobebetterjavaer.com	connect	view source
codetop.cc	connect	view source
computer-networks.github.io	connect	view source
cs144.github.io	connect	view source
cstack.github.io	connect	view source
dbdiagram.io	connect	view source
dbschema.com	connect	view source
docs.spring.io	connect	view source
docusaurus.io	connect	view source
elasticjob.io	connect	view source
fex.baidu.com	connect	view source
gitee.com	connect	view source
github.com	connect	view source
help.aliyun.com	connect	view source
how2j.cn	connect	view source
img.topjavaer.cn	connect	view source
insomnia.rest	connect	view source
jdk.java.net	connect	view source
juejin.cn	connect	view source
juejin.im	connect	view source
junit.org	connect	view source
learn.lianglianglee.com	connect	view source
leetcode-cn.com	connect	view source
link.juejin.cn	connect	view source
link.zhihu.com	connect	view source
lucene.apache.org	connect	view source
martinfowler.com	connect	view source
maven.apache.org	connect	view source
mmbiz.qpic.cn	connect	view source
mp.weixin.qq.com	connect	view source
mrbird.cc	connect	view source
mybatis.org	connect	view source
mysql.taobao.org	connect	view source
p1-jj.byteimg.com	connect	view source
p1-juejin.byteimg.com	connect	view source
p3-juejin.byteimg.com	connect	view source
p6-juejin.byteimg.com	connect	view source
p9-juejin.byteimg.com	connect	view source
pdos.csail.mit.edu	connect	view source
proanimer.com	connect	view source
react.dev	connect	view source
redis.io	connect	view source
resume.mdnice.com	connect	view source
schema.org	connect	view source
sentinelguard.io	connect	view source
service.api.company.com	connect	view source
shardingsphere.apache.org	connect	view source
skywalking.apache.org	connect	view source
spring.io	connect	view source
square.github.io	connect	view source
tech.meituan.com	connect	view source
time.geekbang.org	connect	view source
tobebetterjavaer.com	connect	view source
try.redis.io	connect	view source
webplatform.github.io	connect	view source
www.apifox.cn	connect	view source
www.baidu.com	connect	view source
www.bilibili.com	connect	view source
www.cnblogs.com	connect	view source
www.cs.usfca.edu	connect	view source
www.getpostman.com	connect	view source
www.icourse163.org	connect	view source
www.javalearn.cn	connect	view source
www.jianshu.com	connect	view source
www.liaoxuefeng.com	connect	view source
www.modb.pro	connect	view source
www.mybatis.org	connect	view source
www.mysql.com	connect	view source
www.navicat.com.cn	connect	view source
www.nowcoder.com	connect	view source
www.pdai.tech	connect	view source
www.powerjob.tech	connect	view source
www.projava.cn	connect	view source
www.ruanyifeng.com	connect	view source
www.runoob.com	connect	view source
www.scs.stanford.edu	connect	view source
www.shiyanlou.com	connect	view source
www.sxt.cn	connect	view source
www.w3.org	connect	view source
www.wondercv.com	connect	view source
www.xuetangx.com	connect	view source
www.zhihu.com	connect	view source
xiaolongcoder.oss-cn-beijing.aliyuncs.com	connect	view source
zhenbianshu.github.io	connect	view source
zhuanlan.zhihu.com	connect	view source

Stored pages and scripts

The newest stored version of each file, newest first@if (p.FilesTruncated) { (the 500 newest of 124) }. Versions are the crawls at which the file was new or its content changed; each opens the file as it was then, rebuilt from the same stored chunks.

File	Kind	Size	Collected	Versions
https://java2-top.vercel.app/assets/js/9841.135819de.js	js	22.1 KB	2026-10-03	2026-10-03
https://java2-top.vercel.app/assets/js/5062.29d056a9.js	js	1.2 KB	2026-10-03	2026-10-03
https://java2-top.vercel.app/assets/js/3693.8197b629.js	js	947 B	2026-10-03	2026-10-03
https://java2-top.vercel.app/assets/js/e4beb0d9.1fbd9e27.js	js	2.5 KB	2026-10-03	2026-10-03
https://java2-top.vercel.app/assets/js/5bca20b5.89f06495.js	js	7.8 KB	2026-10-03	2026-10-03
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https://java2-top.vercel.app/assets/js/33351c0b.5e20d54f.js	js	50.6 KB	2026-10-03	2026-10-03
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https://java2-top.vercel.app/assets/js/090c1e4a.69ddc60c.js	js	1.4 KB	2026-10-03	2026-10-03
https://java2-top.vercel.app/assets/js/6251f4d1.4ed17140.js	js	4.5 KB	2026-10-03	2026-10-03
https://java2-top.vercel.app/assets/js/ff303916.5cceec79.js	js	21.5 KB	2026-10-03	2026-10-03
https://java2-top.vercel.app/assets/js/185b5086.3db2ab0f.js	js	5.6 KB	2026-10-03	2026-10-03
https://java2-top.vercel.app/assets/js/6e5cfc05.5761aafd.js	js	11.6 KB	2026-10-03	2026-10-03
https://java2-top.vercel.app/assets/js/b13913d9.3446d066.js	js	32.7 KB	2026-10-03	2026-10-03
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https://java2-top.vercel.app/assets/js/6c7eed87.2e863f36.js	js	62.3 KB	2026-10-03	2026-10-03
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https://java2-top.vercel.app/assets/js/9dd3eaf9.cb67ead8.js	js	65.7 KB	2026-10-03	2026-10-03
https://java2-top.vercel.app/assets/js/78e02580.0db55ce0.js	js	51.8 KB	2026-10-03	2026-10-03
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https://java2-top.vercel.app/assets/js/cabd463d.a1d89c9d.js	js	5.1 KB	2026-10-03	2026-10-03
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https://java2-top.vercel.app/assets/js/5e7211ed.f0427cef.js	js	62.3 KB	2026-10-03	2026-10-03
https://java2-top.vercel.app/assets/js/cc6d7c46.7b3950f5.js	js	23.1 KB	2026-10-03	2026-10-03
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https://java2-top.vercel.app/assets/js/2cd44afa.c0947fc3.js	js	27.8 KB	2026-10-03	2026-10-03
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https://java2-top.vercel.app/assets/js/e90ddadf.19649f98.js	js	51.5 KB	2026-10-03	2026-10-03
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https://java2-top.vercel.app/assets/js/8cc8063a.1f805712.js	js	50.6 KB	2026-10-03	2026-10-03
https://java2-top.vercel.app/assets/js/ca8256cc.fd803b38.js	js	31.7 KB	2026-10-03	2026-10-03
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https://java2-top.vercel.app/assets/js/c4f5d8e4.43fd1ab4.js	js	68.5 KB	2026-10-03	2026-10-03
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https://java2-top.vercel.app/assets/js/b06984ac.4853cd0e.js	js	22.6 KB	2026-10-03	2026-10-03
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https://java2-top.vercel.app/assets/js/c4d07be7.cccb4f42.js	js	27.9 KB	2026-10-03	2026-10-03
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https://java2-top.vercel.app/assets/js/0b0b1c10.566fe72f.js	js	75.6 KB	2026-10-03	2026-10-03
https://java2-top.vercel.app/assets/js/5a4ff9ab.188af81f.js	js	11.3 KB	2026-10-03	2026-10-03
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https://java2-top.vercel.app/assets/js/62b924e8.82ee8971.js	js	15.5 KB	2026-10-03	2026-10-03
https://java2-top.vercel.app/assets/js/c8036695.d8e2034a.js	js	3.1 KB	2026-10-03	2026-10-03
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https://java2-top.vercel.app/assets/js/d60db1ae.987889f6.js	js	178 B	2026-10-03	2026-10-03
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https://java2-top.vercel.app/assets/js/17896441.76de85b0.js	js	14.5 KB	2026-10-03	2026-10-03
https://java2-top.vercel.app/assets/js/56a7f234.0aa49fe3.js	js	15.9 KB	2026-10-03	2026-10-03
https://java2-top.vercel.app/assets/js/main.1e47bf79.js	js	481.5 KB	2026-10-03	2026-10-03
https://java2-top.vercel.app/assets/js/runtime~main.c4476325.js	js	8.8 KB	2026-10-03	2026-10-03
https://java2-top.vercel.app/leetcode/	html	13 KB	2026-10-03	2026-10-03
https://java2-top.vercel.app/resource/	html	13.4 KB	2026-10-03	2026-10-03
https://java2-top.vercel.app/bagu/java/basic/java-basic	html	51.7 KB	2026-10-03	2026-10-03
https://java2-top.vercel.app/scene/mass-data/topk-template	html	60.3 KB	2026-10-03	2026-10-03
https://java2-top.vercel.app/	html	67.5 KB	2026-10-03	2026-10-03

Timeline

One entry per crawl, newest first, with what changed since the crawl before: libraries, identifiers, third-party hosts and files. Historical versions stay viewable because the stored chunks are shared between versions, never copied.

2026-10-03 first crawl

5 pages, 124 files, 2.7 MB; 8 libraries, 0 identifiers, 91 third-party hosts
8 libraries added
- @ant-design/x 2.9.0
- @inkeep/cxkit-js 0.5.119
- @clerk/ui 1.34.0
- @moveo-ai/web-client 0.117.0
- @joyfill/components 4.0.0-rc26
- spectorjs 0.9.33
- @chainlink/cl-search-frontend 0.13.2
- artplayer-plugin-vast 1.0.0
91 third-party hosts added
- webplatform.github.io
- react.dev
- www.w3.org
- docusaurus.io
- github.com
- proanimer.com
- zhenbianshu.github.io
- img.topjavaer.cn
- schema.org
- p1-jj.byteimg.com
- juejin.cn
- www.bilibili.com
- and 79 more
124 files added

Questions about java2-top.vercel.app

How does PageSourceSearch know what java2-top.vercel.app is built with?: From the site's own source code. The crawler stores the exact bytes of its pages and first-party scripts; the libraries are recognised by fingerprinting that code against known releases, the identifiers are read out of the tag snippets, and the third-party hosts are the script, iframe and stylesheet sources in the HTML and the absolute URLs inside the scripts. Nothing is inferred from headers or guessed.
How far back does the history of java2-top.vercel.app go?: To the first crawl the timeline lists. Every crawl records what the site looked like; when a file's content changes, its earlier version stays viewable because the stored chunks are never deleted, only mapped. A crawl that finds a file unchanged adds no copy.
Can I see an older version of a script from java2-top.vercel.app?: Yes. In the stored files list, every date under a file opens the version that was live at that crawl, with the same viewer as the current one. The raw bytes can be downloaded from there.
Which other websites use the same tracking IDs as java2-top.vercel.app?: Each identifier links to its reverse lookup, the list of every site in the index whose source carries the same id: the sites one analytics property or tag manager container is shared across.

Look up another site, browse sites by tracking ID, third-party host or technology. Site owners: see the crawler page for how stored pages are removed.