osc.lk


osc.lk Website Info

osc.lk (Home - The Overseas School of Colombo has been Sri Lanka's premier and one of the best international schools in Colombo since 1957! OSC is the only IB school in Sri Lanka.) DNS looks Active and website looks Accessable. According to Google, website speed score is 20/100 and SLOW. Website looks safe for children.
osc.lk


osc.lk Website Tags

Domain Status:
✓ Active
Is Site Accessable?:
✓ Yes
SSL(https):
✓ Yes
Accessable Url:
Title:
Overseas School of Colombo - The Best International School in Colombo
Description:
Home - The Overseas School of Colombo has been Sri Lanka's premier and one of the best international schools in Colombo since 1957! OSC is the only IB school in Sri Lanka.
Canonical URL:
[Not Set]

osc.lk Domain & Whois Details

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Server Type:
cloudflare
Hosting Location:
-
IP:
104.17.68.73 , 104.17.67.73 , 104.17.70.73 , 104.1



osc.lk Website Speed (Desktop)

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Overall Category:
SLOW
The human readable speed "category"
Speed Index:
20
Speed Index shows how quickly the contents of a page are visibly populated. [Learn more about the Speed Index metric].
Cumulative Layout Shift (CLS):
1.04 (SLOW)
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):
1.925 s (SLOW)
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):
4 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):
3.219 s (SLOW)
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):
4.764 s (SLOW)
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:
7479 KB
Total Size. Large network payloads cost users real money and are highly correlated with long load times.
Server Response Time:
1154 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.osc.lk/
Canonicalized and final URL for the document, after following page redirects (if any).
Last Date Checked:
8/9/2023 1:24:49 PM
The last time we checked this website.

osc.lk HTML Resources

Type
Request Count
Size
Total
93
7,479 KB
Third-party
77
6,588 KB
Image
67
6,166 KB
Script
12
1,037 KB
Font
5
142 KB
Stylesheet
4
111 KB
Document
1
12 KB
Other
4
8 KB
Media
0
0 KB

osc.lk Website Safety

Refresh
Last Check Date:
5/22/2023 9:20:28 AM
Fortiguard:
Education
Mcafee Category:
Education/Reference
OpenDNS:
notdecidedyet
Cloudflare DNS:
OK
MyWot Child Safety:
80

osc.lk HTTP Headers

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alt-svc :
h3=":443"; ma=86400
Cache-Control :
public, s-maxage=300, max-age=30, stale-if-error=21600, stale-while-revalidate=15
CF-Cache-Status :
REVALIDATED
CF-RAY :
7d4581517aab0f3b-EWR
Connection :
keep-alive
Content-Security-Policy :
frame-ancestors 'self' gecko.osc.lk;
Content-Type :
text/html; charset=utf-8
Date :
Fri, 09 Jun 2023 01:12:17 GMT
Referrer-Policy :
strict-origin-when-cross-origin
Server :
cloudflare
Set-Cookie :
__cf_bm=51XdK53gU44bkVDARAPvhADHrXVivXjWPG1fSHyMTM0-1686273137-0-AT75IFSIrEI5ewkHonq/2+ybhuDYiRNH8/K
strict-transport-security :
max-age=15552000
Transfer-Encoding :
chunked
Vary :
Accept-Encoding
x-content-type-options :
nosniff
X-Download-Options :
noopen
X-Frame-Options :
SAMEORIGIN
X-Permitted-Cross-Domain-Policies :
none
X-Request-Id :
91bd88ea-2053-4907-97a4-fa7632caa375
X-Runtime :
0.789017
x-xss-protection :
1; mode=block


osc.lk W3C HTML Validation Check Now

Last Check Date:
6/1/2023 12:00:00 AM
Errors:
88
Warnings:
0
Info:
38

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osc.lk Site Keywords

home
Overseas School of Colombo
Overseas School of Colombo is Sri Lanka
The Best International School in Colombo
The Overseas School of Colombo

osc.lk Site H Tags

Check Now
h1
Home
h2
LEARNING BEYOND CLASSROOMS
h2
Together We Are Making a Difference
h2
After School Activities
h2
Observe Art, Show Art, Create Art
h2
Home of the Geckos
h2
40+
h2
65
h2
1:6
h2
100%
h2
Stay Connected
h2
Unity in Diversity
h2
Summer Camp 2023

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