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Website Information Tool: Technologies, Rankings, WHOIS and IPChandra.si.edu Website Information

chandra.si.edu iconChandra.si.edu is a subdomain of chandra.si.edu iconSi.edu, which is the 📈9,107th most visited website in the world and the 2,077th most visited website in the United States. It has a medium pagerank of 4.4, which means that the website has a pretty good amount of backlinks.

The website is built with PHP and jQuery. Requests are handled by the Apache/2.4.6 (CentOS) OpenSSL/1.0.2k-fips web server, which is hosted by Harvard University, located in the United States and associated with IP address 131.142.198.52.

The domain will expire in 1 year and 9 months.

Chandra.si.edu thumbnail
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Website overview

Owned by
Smithsonian Institution, 380 Herndon Parkway, Herndon, VA 20170, USA
SSL certificate ownerSmithsonian Institution
District of Columbia, United States
Hosted byHarvard University
Server locationUnited States
Registration date
19 Jun 1992 (30 years and 3 months ago)
Expiration date
31 Jul 2024 (in 1 year and 9 months)
First archive date
2 May 1997 (25 years and 5 months ago)
Top visitor countryUnited States
CategoryArt/Culture/Heritage, Education/Reference

Page information

Titlechandra.si.edu iconChandra X-ray Observatory - NASA's flagship X-ray telescope
DescriptionNASA's sophisticated telescope is specially designed to detect X-ray emission from very hot regions of the Universe.
Word cloud
Language
English
Size
117.4 KB (120,188 bytes)
Text to code ratio
7.91%

Technologies

Analytics and trackingGoogle Analytics iconGoogle Analytics
JavaScript librariesjQuery 1.10.1
Operating systemsCentOS
Programming languagesPHP
Social networksFacebook, Flickr iconFlickr, Twitter
Video hostingYouTube
Web serversApache 2.4.6
WidgetsGoogle Translate

Rankings

Domain
chandra.si.edu
Open PageRank
4.44 PageRank 4PageRank 4 down (-0.05 since 19 Mar 2022)
Umbrella rank
610,134
Domain
si.edu
Alexa Rank
9,107 down (-137 since 17 Sep 2022)
Open PageRank
5.67 PageRank 5PageRank 5 up (+0.30 since 19 Mar 2022)
Majestic rank
413 up (+4 since 1 Sep 2022)
Rank among .edu
22 (no change since 1 Sep 2022)
Domain Authority
92 (no change since 2 Jun 2022)
MOZ rank
419 up (+7 since 2 Jun 2022)
Umbrella rank
36,632 down (-5,518 since 1 Sep 2022)
Quantcast rank
1,810 (no change since 1 Mar 2020)
Historical PageRank
8 PageRank 8PageRank 8 (cached on 27 Jan 2010)

Linking information

Domain
si.edu
Referring C subnets
38,985 down (-22 since 1 Sep 2022)
Referring IPs
76,388 up (+434 since 1 Sep 2022)
Linking root domains
295,419 up (+709 since 2 Jun 2022)

Social

Domain
chandra.si.edu
Pinterest Pins
277 up (+1 since 28 Jul 2022)
Buffer Shares
10 (no change since 28 Jul 2022)
Domain
si.edu
Facebook Likes
10,825 up (+222 since 20 Jul 2020)
Pinterest Pins
4,986 down (-6 since 17 Sep 2022)
Buffer Shares
13 (no change since 17 Sep 2022)

Safety

Safe3/3
WOT Trustworthiness
WOT Child safety
Excellent (95)
McAfee WebAdvisor

On-page data

Headings

<h1><h2><h3><h4><h5><h6>
000000

Linked domains

Images

Total68
Internal
67 98.5%
External
1 1.5%
Other
0 0%
Without ALT
2 2.9%
Without SRC
0 0%
With TITLE
0 0%
Duplicated
1 1.5%

File types

.php151
.html83
.jpg58
.js14
.gif3
.png3
.css2
.json1

URI schemes

(none)264
http185
https6
mailto2
//2

Meta tags

content-typetext/html; charset=iso-8859-1
description[...]
keywordschandra, chandra x-ray observatory, chandra x-ray center, chandra x-ray, cxo, chandra images, x-ray images, chandra pictures, x-ray astronomy pictures, chandra photos, x-ray astronomy photos, x-ray astronomy news, chandra press, chandra news, chandra science, chandra resources, formerly axaf, cxc, telescope, observatory, x-ray, astronomy, astrophysics, axaf
viewportwidth=device-width, initial-scale=1

Top ranking keywords


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Competitors


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Domain whois

Domain Namesi.edu
Name ServersA9-64.AKAM.NET, A1-88.AKAM.NET, A24-67.AKAM.NET, A11-67.AKAM.NET, A26-66.AKAM.NET, A28-65.AKAM.NET
Domain record activated19 Jun 1992 (30 years and 3 months ago)
Domain record last updated7 Sep 2022 (29 days and 23 hours ago)
Domain expires31 Jul 2024 (in 1 year and 9 months)
RegistrantSmithsonian Institution, 380 Herndon Parkway, Herndon, VA 20170, USA

IP addresses

HostnameIP addressReverse DNS HostnameLocation
chandra.si.edu131.142.198.52
Lookup
chandra.cfa.harvard.eduUnited States

IP whois

IP address131.142.198.52
Network Range131.142.0.0 - 131.142.255.255
Network NameCFA-NET
OrganizationHarvard-Smithsonian Center for Astrophysics
Address60 Garden Street, Cambridge, Massachusetts, 02138, United States
Registered21 Nov 1988 (33 years and 10 months ago)
Updated14 Dec 2021 (9 months and 22 days ago)
NOC contact
Abuse contact
Technical contact
Referral technical contact
Hewett, Robert A, +1-617-384-6594, email

Websites on this IP (4)

  • chandra.harvard.edu iconchandra.harvard.edu
  • chandra.si.edu iconchandra.si.edu
  • xrtpub.harvard.edu iconxrtpub.harvard.edu
  • chandra.cfa.harvard.edu iconchandra.cfa.harvard.edu

Server response data

Request URLhttp://chandra.si.edu (HTTP/1.1, port 80)
Response code307
Response headers
content-length0
locationhttps://chandra.si.edu/
cache-controlno-cache
Request URL (2)https://chandra.si.edu/ (HTTP/1.1, port 443, TLSv1.2)
SSL certificateissued by Internet2 on 15 Jul 2022 (2 months and 21 days ago)
for Smithsonian Institution, District of Columbia, United States
Response code200 (OK)
Response headers
dateThu, 06 Oct 2022 23:34:03 GMT
serverApache/2.4.6 (CentOS) OpenSSL/1.0.2k-fips
set-cookie
  1. PHPSESSID=ri4m6h2k1m4u06cifqgfv2c4s7; path=/
  2. SERVERID=cxcweb4; path=/
expiresThu, 19 Nov 1981 08:52:00 GMT (40 years and 10 months ago)
cache-controlno-store, no-cache, must-revalidate, post-check=0, pre-check=0
pragmano-cache
transfer-encodingchunked
content-typetext/html; charset=UTF-8

Additional resources

Disclaimer

Wmtips.com is not affiliated, associated, authorized, endorsed by, or in any way officially connected with si.edu. The data is collected from publicly available information and third-party services. All trademarks, product names and logos are the property of their respective owners.

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