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SGSiteGraph

quizlet.com

Captcha Challenge…

Last scanned Jul 29, 2026, 12:00 PM · 9 views

83

Overall score

Great

Summary

SEO is fair (60/100) and accessibility is excellent (100/100). Security scores good (80/100) and performance excellent (100/100). Top issue: Missing meta description.

Top issues to fix

8 issues found · 3 high priority

  • Missing Strict-Transport-Security header

    Security

    Add HSTS so browsers always use HTTPS — this closes the protocol-downgrade attack window.

  • Missing Content-Security-Policy header

    Security

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

  • Missing meta description

    SEO

    Add a ~150-character meta description to control your search-result snippet and lift click-through rate.

  • Missing canonical link

    SEO

    Add <link rel="canonical"> so search engines know which URL variant to index.

  • No structured data (JSON-LD) found

    SEO

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

  • Missing OpenGraph tags

    SEO

    Add og:title/og:description/og:image so shared links render a proper preview card.

+2 more issues — details in the sections below.

60

SEO

6 issue(s) found

100

Performance

28 ms

80

Security

HTTPS & header checks

100

Accessibility

0 issue(s) found

Score history

-2 overall since Jul 18, 2026

Overall
83
SEO
60
Security
80
Performance
100
Accessibility
100

Meta tags

Title
Captcha Challenge…
Description
Canonical
Language
en
Charset
UTF-8
Viewport
width=device-width,initial-scale=1
Robots meta
Manifest

OpenGraph & Twitter Card

OpenGraph

og:title
og:description
og:type
og:url

Twitter Card

twitter:card
twitter:title
twitter:description

Technologies

Detected frameworks, languages, and tools.

No technologies detected.

Hosting & CDN

Hosting provider
CDN provider
Cloudflare
IP address
ASN

DNS records

TypeValue
A
AAAA
MX
TXT
NS
CAA
CNAME
IPv6 supportNo

TLS / SSL certificate

Version
TLS 1.3
Issuer
Let's Encrypt
Subject
quizlet.com
Valid from
Jun 25, 2026
Valid to
Sep 23, 2026
Days until expiry
56
SAN domains
ablink.account.quizlet.com, ablink.lifecycle.quizlet.com, ablink.newsletter.quizlet.com, quizlet.com

Security headers

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

Compression: gzip · 1 cookie(s) observed

Content & assets

Headings

H1 1 · 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

2.9 KB · 150 KB

Page size

157 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 structured data (JSON-LD) found
  • Missing OpenGraph tags
  • robots.txt not found
  • sitemap.xml not found

Accessibility issues

No accessibility issues detected.

Scan details

Requested URL
https://quizlet.com
Final URL
https://quizlet.com
HTTP status
403
HTTP version
HTTP/2
Response time
25 ms
HTML size
157 KB
Redirect chain
https://quizlet.com

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Frequently asked questions

What technology does quizlet.com use?
We did not detect any specific technologies for quizlet.com in the latest scan.
Is quizlet.com secure (HTTPS)?
Yes. quizlet.com uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Sep 23, 2026.
Who hosts quizlet.com?
Hosting provider information for quizlet.com is not available yet.
What is quizlet.com's SEO score?
quizlet.com scored 60/100 for SEO in the latest analysis (fair).
What is quizlet.com's overall website score?
quizlet.com has an overall SiteGraph score of 83/100, combining SEO, performance, security, and accessibility.
Has quizlet.com's score changed over time?
quizlet.com's overall score has declined by 2 points (from 85 to 83) since Jul 18, 2026.