openintro.org


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

openintro.org Website Info

openintro.org (OpenIntro's mission is to make educational products that are free, transparent, and lower barriers to education. We're a registered 501(c)(3) nonprofit.) was registered first at 2009-07-11 19:22:08. It's hosted by WEBSITEWELCOME.COM. DNS looks Active and website looks Accessable. According to Google, website speed score is 0/100 and AVERAGE. Website looks safe for children. We detected the website language as en.
openintro.org


openintro.org Website Tags

Domain Status:
✓ Active
Is Site Accessable?:
✓ Yes
SSL(https):
✓ Yes
Accessable Url:
https://www.openintro.org
Title:
OpenIntro: developer and promoter of educational products that are free, transparent, and lower barriers to education.
Description:
OpenIntro's mission is to make educational products that are free, transparent, and lower barriers to education. We're a registered 501(c)(3) nonprofit.
External Links:
0
Internal Links:
29
Canonical URL:
[Not Set]
Language:
en
XML Sitemap:
✓ Yes
robots.txt:
✗ No
Favicon:
✓ Yes

openintro.org Domain & Whois Details

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Domain Create Date:
2009-07-11 19:22:08
Domain Age:
15 years, 11 months, 23 days
Domain Owner:
Sponsoring Google Inc.Registrant Contact Privacy Inc. Customer 12434348Admin Contact Privacy Inc. Customer 12434348Tech Contact Privacy Inc. Customer 12434348
Server Type:
Apache
Nameservers:
NS1629.HOSTGATOR.COM - NS1630.HOSTGATOR.COM -
Hosting Location:
Country: United States (US) /
Location:
ISP:
Hosting Provider:
WEBSITEWELCOME.COM
IP:
192.185.65.127



openintro.org Website Speed (Desktop)

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Overall Category:
AVERAGE
The human readable speed "category"
Speed Index:
0
Speed Index shows how quickly the contents of a page are visibly populated. [Learn more about the Speed Index metric].
Cumulative Layout Shift (CLS):
0.24 (AVERAGE)
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):
0.799 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):
1.328 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
Largest Contentful Paint (LCP):
1.71 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:
1270 KB
Total Size. Large network payloads cost users real money and are highly correlated with long load times.
Server Response Time:
400 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.openintro.org/
Canonicalized and final URL for the document, after following page redirects (if any).
Last Date Checked:
8/24/2023 10:04:06 AM
The last time we checked this website.
Site Speed Check(Full)


openintro.org Website Safety

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Last Check Date:
3/22/2023 3:56:28 AM
Fortiguard:
Education
Mcafee Category:
Education/Reference
OpenDNS:
BeFirst
Cloudflare DNS:
OK
MyWot Child Safety:
99

openintro.org HTTP Headers

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Cache-Control :
no-store, no-cache, must-revalidate
Connection :
Upgrade, Keep-Alive
Content-Type :
text/html; charset=UTF-8
Date :
Mon, 05 Jun 2023 08:06:36 GMT
expires :
Thu, 19 Nov 1981 08:52:00 GMT
Keep-Alive :
timeout=5, max=75
Pragma :
no-cache
Server :
Apache
Set-Cookie :
PHPSESSID=bdfaaf0f79567ebee063c51dbcd630e6; path=/,os3=0; expires=Tue, 04-Jun-2024 08:06:36 GMT; Max
Transfer-Encoding :
chunked
Upgrade :
h2,h2c
Vary :
Accept-Encoding


openintro.org W3C HTML Validation Check Now

Last Check Date:
5/30/2023 12:00:00 AM
Errors:
3
Warnings:
0
Info:
4
Check Live:
Check openintro.org HTML Errors

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openintro.org Site Keywords

and lower barriers to education
developer and promoter of educational products that are free
open intro statistics
open intro statistics 3rd edition
open statistics
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transparent

openintro.org Site H Tags

Check Now
h1
Publishing Done Right
h2
Teacher Access
h4
Ensuring every student has access
h6
Statistics
h6
Mathematics
h6
About
h6
Company

openintro.org Sites with Same Names

Website
Title
Rank
openintro.us openintro.us
OpenIntro: developer and promoter of educational products that are free, transparent, and lower barriers to education.
48,323,511
openintro.com openintro.com
OpenIntro: developer and promoter of educational products that are free, transparent, and lower barriers to education.

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