pcjs.org


pcjs.org Website Info

pcjs.org (PCjs is an open-source project that provides a browser-based emulator for vintage PCs. It allows users to simulate and interact with classic computer systems and operating environments directly within their web browsers, making it a valuable resource for education, preservation, and nostalgia.) was registered first at 2013-12-03 20:09:05. It's hosted by Fastly (GitHub, Inc). DNS looks Active and website looks Accessable. pcjs.org Website SEMRush Rank is 148,709. According to Google, website speed score is 100/100 and FAST. Website looks safe for children. We detected the website language as en-US.
pcjs.org


pcjs.org Website Tags

Domain Status:
✓ Active
Is Site Accessable?:
✓ Yes
SSL(https):
✓ Yes
Accessable Url:
Title:
PCjs - JavaScript-Based PC Emulator and Simulator
Description:
Home of the original IBM PC emulator for browsers. PCjs offers a variety of online machine emulators written in JavaScript. Run DOS, Windows, OS/2 and other vintage PC applications in a web browser on your desktop computer, iPhone, or iPad. An assortment of microcomputers, minicomputers, terminals, programmable calculators, and arcade machines are available, along with an archive of historical software and documentation.
Categories :
Computers/FAQs Help and Tutorials, Computers/Internet, Computers/Programming/Languages, Software/Hardware, Information Technology
External Links:
7
Internal Links:
520
Mobile Friendly?:
✓ Yes
Canonical URL:
https://www.pcjs.org/
Language:
en-US
XML Sitemap:
✗ No
robots.txt:
✓ Yes https://www.pcjs.org/robots.txt
Favicon:
✓ Yes

pcjs.org Domain & Whois Details

Refresh
Domain Create Date:
2013-12-03 20:09:05
Domain Age:
11 years, 7 months, 0 days
Domain Expire Date:
2023-12-03T20:09:05Z
Domain Last Update Date:
2023-12-03T20:09:05Z
Domain Owner:
https://domains.google.com - Google LLC - Registrant REDACTED FOR PRIVACY - Admin REDACTED FOR PRIVACY - Tech REDACTED FOR PRIVACY -
Server Type:
GitHub.com
Nameservers:
ns-cloud-d4.googledomains.com - ns-cloud-d1.googledomains.com - ns-cloud-d3.googledomains.com - ns-cloud-d2.googledomains.com -
Hosting Location:
Country:United States, City:San Francisco, Isp:Fastly, Inc., Org:GitHub, Inc
Hosting Provider:
Fastly (GitHub, Inc)
IP:
185.199.108.153 , 185.199.109.153 , 185.199.110.15

pcjs.org Backlinks & Rankings

SEMRush Rank:
148,709
Semrush Rank is a proprietary score that lets you find the domains that are getting the most traffic from organic search.
SEMRush Traffic:
13,827
Number of users expected to visit the website during the following month.
SEMRush Costs:
5,088
Estimated price of organic keywords in Google AdWords.
SEMRush URL Links:
471
Number of links to URL according to SemRush.
SEMRush Website Links:
1,203
Number of links to the website according to SemRush.
SEMRush Domain Links:
78,068
Number of links to SemRush Domain.
SEMRush Keywords In Top 100:
4,343
Number of keywords where site in Google's organic search top 100.

pcjs.org Social Media

Facebook Comments:
528
Facebook Shares:
919
Facebook Reactions:
2,053

pcjs.org Website Speed (Desktop)

Refresh
Overall Category:
FAST
The human readable speed "category"
Speed Index:
100
Speed Index shows how quickly the contents of a page are visibly populated. [Learn more about the Speed Index metric].
Cumulative Layout Shift (CLS):
0.08 (FAST)
The Cumulative Layout Shift (CLS) metric measures how much unexpected layout shifts affect the user experience on a page. These layout shifts occur when content moves around without prior user input. CLS
Time to First Byte (TTFB):
0.542 s (FAST)
TTFB (time to first byte) is the number of milliseconds it takes for a client’s browser to receive the first byte of the response from the web server. Usually, TTFB can be improved with faster hosting and server optimizations. TTFB
First Input Delay (FID):
3 ms (FAST)
First Input Delay (FID) measures the time from when the user interacts with your site for the first time (click a link, tap on a button, etc.) to the time when the browser is able to respond to that interaction. Google recommends keeping FID below 100ms for a good user experience. FID
First Contentful Paint (FCP):
1.757 s (FAST)
FCP (First Contentful Paint) measures the time from a user’s navigation to when the browser renders the first bit of content from the DOM. In other words, FCP marks the time at which the first text or image is painted for the user. According to PageSpeed Insights, FCP should occur in under 2 seconds. FCP
Interaction to Next Paint (INP):
29 ms (FAST)
Interaction to Next Paint (INP) is a web performance metric that measures user interface responsiveness – how quickly a website responds to user interactions like clicks or key presses. Specifically, it measures how much time elapses between a user interaction like a click or key press and the next time the user sees a visual update on the page. INP
Largest Contentful Paint (LCP):
2.06 s (FAST)
Largest Contentful Paint (LCP) is a metric that measures when the largest content in the viewport is rendered. It is used to measure how long it takes for the main content of your webpage to appear on the screen. Everything below 2.5s is considered good LCP time by PageSpeed Insights. LCP
Total Size:
1397 KB
Total Size. Large network payloads cost users real money and are highly correlated with long load times.
Server Response Time:
55 ms
Initial server response time. Keep the server response time for the main document short because all other requests depend on it. [Learn more about the Time to First Byte metric](https://developer.chrome.com/docs/lighthouse/performance/time-to-first-byte/).
Final Url:
https://www.pcjs.org/
Canonicalized and final URL for the document, after following page redirects (if any).
Last Date Checked:
5/26/2023 7:25:30 PM
The last time we checked this website.

pcjs.org HTML Resources

Type
Request Count
Size
Total
50
1,397 KB
Image
40
1,245 KB
Script
3
107 KB
Third-party
4
105 KB
Font
2
20 KB
Document
1
18 KB
Stylesheet
2
5 KB
Other
2
0 KB
Media
0
0 KB

pcjs.org Website Safety

Refresh
Last Check Date:
6/14/2023 3:13:57 PM
Fortiguard:
Information Technology
Mcafee Category:
Software/Hardware
OpenDNS:
notdecidedyet
Cloudflare DNS:
BLOCKED
MyWot Child Safety:
90

pcjs.org HTTP Headers

Refresh
Accept-Ranges :
bytes
Access-Control-Allow-Origin :
*
Age :
0
Cache-Control :
max-age=600
Connection :
keep-alive
Content-Length :
206183
Content-Type :
text/html; charset=utf-8
Date :
Fri, 12 May 2023 20:40:25 GMT
ETag :
"645e9af8-32567"
expires :
Fri, 12 May 2023 20:50:25 GMT
Last-Modified :
Fri, 12 May 2023 20:00:56 GMT
Server :
GitHub.com
Vary :
Accept-Encoding
Via :
1.1 varnish
X-Cache :
MISS
x-cache-hits :
0
X-Fastly-Request-ID :
18374fc40e8037adc16eb3b7ce4265a914e1a392
X-GitHub-Request-Id :
58B9:820D:29DD514:3C6196E:645EA439
X-Proxy-Cache :
MISS
X-Served-By :
cache-lga21978-LGA
X-Timer :
S1683924025.248414,VS0,VE15


pcjs.org W3C HTML Validation Check Now

Last Check Date:
5/27/2023 12:00:00 AM
Errors:
0
Warnings:
0
Info:
0

pcjs.org Similar Sites

Website
Title
Rank
AJF.me - Your Personalized Online Platform
Windows 93 - Virtual Operating System Simulation
218,540
Copy.sh - Online Cloud IDE & Terminal Emulator
623,417
JamesFriend.com.au | Your Trusted Real Estate Partner in Australia
191,541
OS/2 Museum - Preserving the Legacy of OS/2 Operating System
1,790,568

pcjs.org Site Keywords

browser-based emulator
javascript emulator
pc emulator
PCjs Machines
vintage computers
windows 1
windows 1.0
windows 3.1
windows 95
windows 95 emulator

pcjs.org Site H Tags

Check Now
h1
PCjs Machines
h2
Welcome to PCjs
h2
PCjs Explorer
h3
PCjs Highlights

pcjs.org Sites with Same Names

Website
Title
Rank
平昌建设网

What is SitesDB?

SitesDB is one of the largest databases of websites and domain names on the internet, with over 40 million entries and growing. For more than 12 years, we've been manually verifying and updating website and domain details, combining human expertise with AI-powered systems to ensure the accuracy and relevance of our data.

At SitesDB, we provide in-depth technical and useful information about websites and domains, including:

  • Website meta tags
  • Domain & WHOIS data
  • General backlink and ranking statistics
  • Social media engagement stats
  • Root page speed insights
  • Website content and HTML resources
  • Website safety and security details, sourced from multiple trusted security providers
  • HTTP headers analysis
  • HTML validation reports
  • Lists of similar websites and competitors
  • Website keyword analysis, including top traffic-driving keywords
  • Heading structure (H tags) breakdown
  • Domain variations across different TLDs (Top-Level Domains)

In addition to this data, SitesDB offers a suite of website analysis tools — including Chrome CRUX, Google Lighthouse, and our own AI-enhanced algorithms — to help identify alternative websites, direct competitors, and similar sites, all continuously refined through both automated systems and human review.