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qf.com

QuantitativeFinance.com -- QF.com

Last scanned Jul 22, 2026, 8:45 PM · 1 view

74

Overall score

Fair

Summary

This is the home page of QuantitativeFinance.com - QF.com. This website uses Nginx hosted on AS-VULTR - The Constant Company, LLC, US. SEO is fair (60/100) and accessibility is good (75/100). Security scores fair (65/100) and performance excellent (100/100). Top issue: Missing canonical link.

This is the home page of QuantitativeFinance.com - QF.com

United States
Hosted on AS-VULTR - The Constant Company, LLC, US

Top issues to fix

12 issues found · 4 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.

  • No H1 heading found

    SEO

    Add exactly one H1 describing the page's main topic — it anchors the document outline for search engines and screen readers.

  • Missing viewport meta tag

    Accessibility

    Add <meta name="viewport" content="width=device-width, initial-scale=1"> — without it the site is broken on mobile.

  • Missing X-Content-Type-Options header

    Security

    Add X-Content-Type-Options: nosniff to stop MIME-sniffing attacks.

  • Missing X-Frame-Options header

    Security

    Add X-Frame-Options (or a CSP frame-ancestors rule) to prevent clickjacking via hidden iframes.

+6 more issues — details in the sections below.

60

SEO

6 issue(s) found

100

Performance

375 ms

65

Security

HTTPS & header checks

75

Accessibility

3 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.

This is the home page of QuantitativeFinance.com - QF.com

Meta tags

Title
QuantitativeFinance.com -- QF.com
Description
This is the home page of QuantitativeFinance.com - QF.com
Canonical
Language
Charset
iso-8859-1
Viewport
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.

Google AnalyticsNginx

Hosting & CDN

CDN provider
—
IP address
149.248.59.22
ASN
AS20473 (AS-VULTR - The Constant Company, LLC, US)

DNS records

TypeValue
A
  • 149.248.59.22
AAAA—
MX
  • localhost.quantitativefinance.com
TXT
  • v=spf1 -all
NS
  • ns2.systemdns.com
  • ns1.systemdns.com
  • ns3.systemdns.com
CAA—
CNAME—
IPv6 supportNo

TLS / SSL certificate

Version
TLS 1.3
Issuer
Let's Encrypt
Subject
quantitativefinance.com
Valid from
May 25, 2026
Valid to
Aug 23, 2026
Days until expiry
31
SAN domains
quantitativefinance.com, www.quantitativefinance.com

Security headers

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

Compression: none · 0 cookie(s) observed

Content & assets

Headings

H1 0 · H2 0 · H3 0

Links

0 internal · 2 external · 0 broken

Images

0 total · 0 missing alt

Scripts / Styles

4 scripts · 1 stylesheets

JS / CSS size

655 B · 0 B

Page size

1.8 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 H1 heading found
  • No structured data (JSON-LD) found
  • Missing OpenGraph tags
  • robots.txt not found
  • sitemap.xml not found

Accessibility issues

  • No H1 heading found
  • Missing <html lang> attribute
  • Missing viewport meta tag

Scan details

Requested URL
https://qf.com
Final URL
https://quantitativefinance.com/?utm_source=qf.com
HTTP status
200
HTTP version
HTTP/2
Response time
375 ms
HTML size
1.8 KB
Redirect chain
https://qf.com → https://quantitativefinance.com/?utm_source=qf.com

See something wrong on this report? Request a correction

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Frequently asked questions

What technology does qf.com use?
qf.com is built with Google Analytics, Nginx.
Is qf.com secure (HTTPS)?
Yes. qf.com uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Aug 23, 2026.
Who hosts qf.com?
qf.com is hosted on AS-VULTR - The Constant Company, LLC, US.
What is qf.com's SEO score?
qf.com scored 60/100 for SEO in the latest analysis (fair).
What is qf.com's overall website score?
qf.com has an overall SiteGraph score of 74/100, combining SEO, performance, security, and accessibility.