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SGSiteGraph

calvin.edu

Calvin University | Grand Rapids, Michigan

Last scanned Jul 26, 2026, 5:17 AM · 2 views

89

Overall score

Great

Summary

Calvin University is a world-class Christian university in Grand Rapids, Michigan. This website uses Nginx hosted on Fastly behind Fastly CDN. SEO is good (85/100) and accessibility is excellent (100/100). Security scores excellent (90/100) and performance good (85/100). Top issue: No structured data (JSON-LD) found.

Calvin University is a world-class Christian university in Grand Rapids, Michigan. Calvin ranks #1 in the Midwest among regional colleges.

United States
Hosted on Fastly

Top issues to fix

3 issues found · 1 high priority

  • Missing Content-Security-Policy header

    Security

    Add a CSP to control which sources can run scripts — the strongest single defense against XSS.

  • No structured data (JSON-LD) found

    SEO

    Add JSON-LD (Organization, Article, Product…) to become eligible for rich results.

  • sitemap.xml not found

    SEO

    Publish an XML sitemap and reference it from robots.txt to speed up page discovery.

85

SEO

2 issue(s) found

85

Performance

9 ms

90

Security

HTTPS & header checks

100

Accessibility

0 issue(s) found

Not enough scan history yet to show a trend — check back after this site has been re-scanned a few more times.

Organization

Company details published in this site's own structured data.

Calvin University is a world-class Christian university in Grand Rapids, Michigan. Calvin ranks #1 in the Midwest among regional colleges.

Contact

Email, phone, and address published on this site's own pages.

Meta tags

Title
Calvin University | Grand Rapids, Michigan
Description
Calvin University is a world-class Christian university in Grand Rapids, Michigan. Calvin ranks #1 in the Midwest among regional colleges.
Canonical
https://calvin.edu/
Language
en
Charset
utf-8
Viewport
width=device-width, initial-scale=1, shrink-to-fit=no
Robots meta
index, follow
Manifest

OpenGraph & Twitter Card

OpenGraph

og:title
Calvin University | Grand Rapids, Michigan | Calvin University
og:description
Calvin University is a world-class Christian university in Grand Rapids, Michigan. Calvin ranks #1 in the Midwest among regional colleges.
og:type
website
og:url
https://calvin.edu/calvin-university-grand-rapids-michigan

Twitter Card

twitter:card
summary
twitter:title
Calvin University | Grand Rapids, Michigan | Calvin University
twitter:description
Calvin University is a world-class Christian university in Grand Rapids, Michigan. Calvin ranks #1 in the Midwest among regional colleges.

Technologies

Detected frameworks, languages, and tools.

Hosting & CDN

Hosting provider
Fastly
CDN provider
Fastly
IP address
23.185.0.3
ASN
AS54113 (FASTLY - Fastly, Inc., US)

DNS records

TypeValue
A
  • 23.185.0.3
AAAA
  • 2620:12a:8000::3
  • 2620:12a:8001::3
MX
  • mxb-002f7301.gslb.pphosted.com
  • mxa-002f7301.gslb.pphosted.com
TXT
  • bw=sI3BCDP5hiNl8KC9zB3Lx0v1PZ939bxKJmohuLnqvQWF
  • atlassian-domain-verification=DjNBBBOlarzEnFCvY9k/XKjLNq3a45aOAH/hB8dfX42LNc8NtbnpmXk8WhXHZ0oy
  • v=spf1 ip4:148.163.143.211 ip4:148.163.146.16 ip4:153.106.124.191 ip4:153.106.124.17 ip4:153.106.142.10 ip4:153.106.135.33 ip4:153.106.124.21 ip4:153.106.124.9 include:_spf1.calvin.edu ~all
NS
  • dns2.calvin.edu
  • dns.calvin.edu
CAA
CNAME
IPv6 supportYes

TLS / SSL certificate

Version
TLS 1.3
Issuer
Let's Encrypt
Subject
calvin.edu
Valid from
Jul 16, 2026
Valid to
Oct 14, 2026
Days until expiry
80
SAN domains
calvin.edu

Security headers

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

Compression: gzip · 0 cookie(s) observed

Content & assets

Headings

H1 1 · H2 23 · H3 16

Links

92 internal · 12 external · 0 broken

Images

22 total · 0 missing alt

Scripts / Styles

54 scripts · 38 stylesheets

JS / CSS size

2.6 MB · 23.1 KB

Page size

128 KB

Robots.txt & Sitemap

robots.txt
Found
Disallow rules
34
sitemap.xml
Not found
URLs in sitemap
0

SEO issues

  • No structured data (JSON-LD) found
  • sitemap.xml not found

Accessibility issues

No accessibility issues detected.

Careers

View careers page

This company has an active careers page, but individual openings weren't reliably parsed from it — visit the page above for current listings.

Scan details

Requested URL
https://calvin.edu
Final URL
https://calvin.edu
HTTP status
200
HTTP version
HTTP/2
Response time
7 ms
HTML size
128 KB
Redirect chain
https://calvin.edu

See something wrong on this report? Request a correction

Frequently asked questions

What technology does calvin.edu use?
calvin.edu is built with Drupal, Bootstrap, jQuery, Nginx.
Is calvin.edu secure (HTTPS)?
Yes. calvin.edu uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Oct 14, 2026.
Who hosts calvin.edu?
calvin.edu is hosted on Fastly, behind Fastly CDN.
What is calvin.edu's SEO score?
calvin.edu scored 85/100 for SEO in the latest analysis (great).
What is calvin.edu's overall website score?
calvin.edu has an overall SiteGraph score of 89/100, combining SEO, performance, security, and accessibility.
Is calvin.edu hiring?
calvin.edu has a careers page; check it directly for current openings.