prairielearn.com
PrairieLearn
Last scanned Jul 26, 2026, 1:19 PM
Overall score
Great
Summary
PrairieLearn is an online assessment and learning system that empowers instructors to create robust educational resources for students. This website uses Next.js hosted on Cloudflare behind Cloudflare CDN. SEO is good (75/100) and accessibility is excellent (90/100). Security scores good (75/100) and performance excellent (100/100). Top issue: Missing canonical link.
PrairieLearn is an online assessment and learning system that empowers instructors to create robust educational resources for students.
- United States
- Hosted on Cloudflare
Products & pricing
Product and pricing information published in this site's own structured data.
Pricing
$8 USD
Top issues to fix
8 issues found · 1 high priority
Missing Content-Security-Policy header
SecurityAdd a CSP to control which sources can run scripts — the strongest single defense against XSS.
Missing X-Content-Type-Options header
SecurityAdd X-Content-Type-Options: nosniff to stop MIME-sniffing attacks.
Missing X-Frame-Options header
SecurityAdd X-Frame-Options (or a CSP frame-ancestors rule) to prevent clickjacking via hidden iframes.
Missing canonical link
SEOAdd <link rel="canonical"> so search engines know which URL variant to index.
No structured data (JSON-LD) found
SEOAdd JSON-LD (Organization, Article, Product…) to become eligible for rich results.
robots.txt not found
SEOPublish /robots.txt with a Sitemap: directive to guide crawlers.
+2 more issues — details in the sections below.
SEO
4 issue(s) found
Performance
329 ms
Security
HTTPS & header checks
Accessibility
1 issue(s) found
Organization
Company details published in this site's own structured data.
PrairieLearn is an online assessment and learning system that empowers instructors to create robust educational resources for students.
Contact
Email, phone, and address published on this site's own pages.
Meta tags
- Title
- PrairieLearn
- Description
- PrairieLearn is an online assessment and learning system that empowers instructors to create robust educational resources for students.
- Canonical
- Language
- Charset
- utf-8
- Viewport
- width=device-width
- Robots meta
- Manifest
Technologies
Detected frameworks, languages, and tools.
Hosting & CDN
- Hosting provider
- Cloudflare
- CDN provider
- Cloudflare
- IP address
- 172.67.72.194
- ASN
- AS13335 (CLOUDFLARENET - Cloudflare, Inc., US)
DNS records
| Type | Value |
|---|---|
| A |
|
| AAAA |
|
| MX | — |
| TXT | — |
| NS | — |
| CAA | — |
| CNAME | — |
| IPv6 support | Yes |
TLS / SSL certificate
- Version
- TLS 1.3
- Issuer
- Google Trust Services
- Subject
- prairielearn.com
- Valid from
- Jul 11, 2026
- Valid to
- Oct 9, 2026
- Days until expiry
- 72
- SAN domains
- prairielearn.com, *.prairielearn.com
Security headers
- Strict-Transport-SecurityEnabled
- Content-Security-PolicyMissing
- X-Frame-OptionsMissing
- X-Content-Type-OptionsMissing
- Referrer-PolicyMissing
- Permissions-PolicyMissing
Compression: gzip · 0 cookie(s) observed
Content & assets
Headings
H1 1 · H2 9 · H3 1
Links
13 internal · 3 external · 0 broken
Images
22 total · 0 missing alt
Scripts / Styles
15 scripts · 5 stylesheets
JS / CSS size
369 B · 377 B
Page size
26.6 KB
Robots.txt & Sitemap
- robots.txt
- Not found
- Disallow rules
- 0
- sitemap.xml
- Not found
- URLs in sitemap
- 0
SEO issues
- Missing canonical link
- No structured data (JSON-LD) found
- robots.txt not found
- sitemap.xml not found
Accessibility issues
- Missing <html lang> attribute
Careers
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://prairielearn.com
- Final URL
- https://www.prairielearn.com/
- HTTP status
- 200
- HTTP version
- HTTP/2
- Response time
- 329 ms
- HTML size
- 26.6 KB
- Redirect chain
- https://prairielearn.com → https://www.prairielearn.com/
See something wrong on this report? Request a correction
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Frequently asked questions
- What technology does prairielearn.com use?
- prairielearn.com is built with Next.js.
- Is prairielearn.com secure (HTTPS)?
- Yes. prairielearn.com uses TLS 1.3 with a certificate issued by Google Trust Services, valid until Oct 9, 2026.
- Who hosts prairielearn.com?
- prairielearn.com is hosted on Cloudflare, behind Cloudflare CDN.
- What is prairielearn.com's SEO score?
- prairielearn.com scored 75/100 for SEO in the latest analysis (fair).
- What is prairielearn.com's overall website score?
- prairielearn.com has an overall SiteGraph score of 84/100, combining SEO, performance, security, and accessibility.
- What products does prairielearn.com offer?
- prairielearn.com offers Pricing.
- Is prairielearn.com hiring?
- prairielearn.com has a careers page; check it directly for current openings.
OpenGraph & Twitter Card
OpenGraph
Twitter Card