What technology does columbia.edu use?

We did not detect any specific technologies for columbia.edu in the latest scan.

Is columbia.edu secure (HTTPS)?

Yes. columbia.edu uses TLS 1.3 with a certificate issued by Google Trust Services, valid until Aug 15, 2026.

Who hosts columbia.edu?

columbia.edu is hosted on Cloudflare, behind Cloudflare CDN.

What is columbia.edu's SEO score?

columbia.edu scored 50/100 for SEO in the latest analysis (fair).

What is columbia.edu's overall website score?

columbia.edu has an overall SiteGraph score of 83/100, combining SEO, performance, security, and accessibility.

columbia.edu

Just a moment...

Last scanned Jul 14, 2026, 1:29 PM

Overall score

Great

Summary

This website is hosted on Cloudflare. SEO is fair (50/100) and accessibility is excellent (90/100). Security scores excellent (100/100) and performance excellent (100/100). Top issue: Missing meta description.

SEO

7 issue(s) found

100

Performance

6 ms

100

Security

HTTPS & header checks

Accessibility

1 issue(s) found

Technologies

Detected frameworks, languages, and tools.

No technologies detected.

Hosting & CDN

Hosting provider: Cloudflare
CDN provider: Cloudflare
IP address: 162.159.128.65
ASN: AS13335 (CLOUDFLARENET - Cloudflare, Inc., US)

DNS records

Type	Value
A	162.159.128.65 162.159.138.64
AAAA	—
MX	mxa-00364e01.gslb.pphosted.com mxb-00364e01.gslb.pphosted.com
TXT	—
NS	auth1.dns.cogentco.com auth2.dns.cogentco.com ns1.lse.ac.uk ext-ns1.columbia.edu
CAA	—
CNAME	—
IPv6 support	No

TLS / SSL certificate

Version: TLS 1.3
Issuer: Google Trust Services
Subject: columbia.edu
Valid from: May 17, 2026
Valid to: Aug 15, 2026
Days until expiry: 31
SAN domains: columbia.edu, *.columbia.edu

Security headers

Strict-Transport-SecurityEnabled
Content-Security-PolicyEnabled
X-Frame-OptionsEnabled
X-Content-Type-OptionsEnabled
Referrer-PolicyEnabled
Permissions-PolicyEnabled

Compression: gzip · 1 cookie(s) observed

Content & assets

Headings

H1 0 · H2 0 · H3 0

Links

0 internal · 0 external · 0 broken

Images

0 total · 0 missing alt

Scripts / Styles

1 scripts · 0 stylesheets

JS / CSS size

3.0 KB · 1.2 KB

Page size

5.3 KB

Robots.txt & Sitemap

robots.txt: Not found
Disallow rules: 0
sitemap.xml: Not found
URLs in sitemap: 0

SEO issues

Missing meta description
Missing canonical link
No H1 heading found
No structured data (JSON-LD) found
Missing OpenGraph tags
robots.txt not found
sitemap.xml not found

Scan details

Requested URL: https://columbia.edu
Final URL: https://columbia.edu
HTTP status: 403
HTTP version: HTTP/2
Response time: 6 ms
HTML size: 5.3 KB
Redirect chain: https://columbia.edu

Frequently asked questions

What technology does columbia.edu use?: We did not detect any specific technologies for columbia.edu in the latest scan.
Is columbia.edu secure (HTTPS)?: Yes. columbia.edu uses TLS 1.3 with a certificate issued by Google Trust Services, valid until Aug 15, 2026.
Who hosts columbia.edu?: columbia.edu is hosted on Cloudflare, behind Cloudflare CDN.
What is columbia.edu's SEO score?: columbia.edu scored 50/100 for SEO in the latest analysis (fair).
What is columbia.edu's overall website score?: columbia.edu has an overall SiteGraph score of 83/100, combining SEO, performance, security, and accessibility.

Meta tags

OpenGraph & Twitter Card