jigsaw.w3.org

Tags Whois Backlink & Rankings Speed Safety Headers Similar Sites Keywords H Tags

Tags Whois Rank Speed Safety Headers Similar Sites Keywords H Tags

jigsaw.w3.org Website Info

jigsaw.w3.org (Jigsaw is an open-source web server and application server created by the World Wide Web Consortium (W3C). It is designed to support the latest web standards and provide a flexible platform for developing and deploying web applications. Jigsaw emphasizes modularity, extensibility, and compliance with web protocols, making it a useful tool for both developers and researchers interested in web technologies.) It's hosted by Massachusetts Institute of Technology. DNS looks Active and website looks Accessable. According to Google, website speed score is 100/100 and FAST. Website looks safe for children. We detected the website language as en.

jigsaw.w3.org Website Tags

Domain Status:

✓ Active

Is Site Accessable?:

✓ Yes

SSL(https):

✓ Yes

Accessable Url:

https://jigsaw.w3.org

Title:

W3C Jigsaw - Web Server and Application Server

Description:

Discover Jigsaw, an open-source web server and application server developed by W3C, supporting the latest web standards and providing a flexible platform for web development.

External Links:

Internal Links:

Mobile Friendly?:

✓ Yes

Canonical URL:

[Not Set]

Language:

XML Sitemap:

✓ Yes

robots.txt:

✗ No

Favicon:

✗ No

jigsaw.w3.org Domain & Whois Details

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Server Type:

cloudflare

Hosting Provider:

Massachusetts Institute of Technology

jigsaw.w3.org Website Speed (Desktop)

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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):

0.03 (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):

0.774 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):

2 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):

0.971 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):

0.964 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:

9 KB

Total Size. Large network payloads cost users real money and are highly correlated with long load times.

Server Response Time:

198 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://jigsaw.w3.org/

Canonicalized and final URL for the document, after following page redirects (if any).

Last Date Checked:

5/25/2023 6:02:11 AM

The last time we checked this website.

Site Speed Check(Full)

jigsaw.w3.org HTML Resources

Type

Request Count

Size

Total

9 KB

Image

6 KB

Document

3 KB

Stylesheet

0 KB

Media

0 KB

Font

0 KB

Script

0 KB

Other

0 KB

Third-party

0 KB

jigsaw.w3.org Website Safety

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Last Check Date:

2/4/2023 4:56:09 PM

Fortiguard:

Information Technology

Mcafee Category:

Software/Hardware

OpenDNS:

Software/Technology

Cloudflare DNS:

MyWot Child Safety:

jigsaw.w3.org HTTP Headers

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alt-svc :

h3=":443"; ma=86400, h3-29=":443"; ma=86400

Cache-Control :

max-age=86400

CF-Cache-Status :

DYNAMIC

CF-RAY :

7c64bf060c31191e-EWR

Connection :

keep-alive

Content-Length :

5174

Content-Location :

https://jigsaw.w3.org/Overview.html

Content-Type :

text/html;charset=ISO-8859-1

Date :

Fri, 12 May 2023 18:32:45 GMT

ETag :

"mvanct:12eh8j49o"

expires :

Sat, 13 May 2023 18:32:45 GMT

Last-Modified :

Sat, 07 Jul 2007 21:16:53 GMT

Public-Key-Pins :

pin-sha256="cN0QSpPIkuwpT6iP2YjEo1bEwGpH/yiUn6yhdy

Server :

cloudflare

Set-Cookie :

__cf_bm=MTwvzrNcvAAQ.8LoxSNx5914dJfXS_GTIFfu1CEVr5

strict-transport-security :

max-age=15552015; includeSubDomains; preload

X-Frame-Options :

deny

X-Request-Id :

7c64bf060c31191e

x-xss-protection :

1; mode=block

jigsaw.w3.org W3C HTML Validation Check Now

Last Check Date:

5/27/2023 12:00:00 AM

Errors:

Warnings:

Info:

Check Live:

Check jigsaw.w3.org HTML Errors

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jigsaw.w3.org Site Keywords

Application Server

CSS validator

Jigsaw Overview

open-source

W3 Validator

w3c

w3c validator

web development

web server

web standards

jigsaw.w3.org Site H Tags

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