calculatorsoup.com
Calculators | Calculator Soup
Last scanned Aug 1, 2026, 2:00 PM · 10 views
Overall score
Great
Summary
Find the ideal calculator for math, science, statistics. This website uses PHP. SEO is excellent (90/100) and accessibility is excellent (100/100). Security scores fair (65/100) and performance excellent (100/100). Top issue: robots.txt not found.
Calculator Soup
Find the ideal calculator for math, science, statistics. Browse calculators for banking, finance, loans, time and date, conversion, fractions, algebra and more.
Top issues to fix
7 issues found · 2 high priority
Missing Strict-Transport-Security header
SecurityAdd HSTS so browsers always use HTTPS — this closes the protocol-downgrade attack window.
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.
robots.txt not found
SEOPublish /robots.txt with a Sitemap: directive to guide crawlers.
sitemap.xml not found
SEOPublish an XML sitemap and reference it from robots.txt to speed up page discovery.
+1 more issue — details in the sections below.
SEO
2 issue(s) found
Performance
531 ms
Security
HTTPS & header checks
Accessibility
0 issue(s) found
Score history
-3 overall since Jul 25, 2026
- Overall
- 88
- SEO
- 90
- Security
- 65
- Performance
- 100
- Accessibility
- 100
Organization
Company details published in this site's own structured data.
Calculator Soup
Find the ideal calculator for math, science, statistics. Browse calculators for banking, finance, loans, time and date, conversion, fractions, algebra and more.
- Founded
- Dec 25, 2009
Contact
Email, phone, and address published on this site's own pages.
Meta tags
- Title
- Calculators | Calculator Soup
- Description
- Find the ideal calculator for math, science, statistics. Browse calculators for banking, finance, loans, time and date, conversion, fractions, algebra and more.
- Canonical
- https://www.calculatorsoup.com/index.php
- Language
- en
- Charset
- utf-8
- Viewport
- width=device-width, initial-scale=1
- Robots meta
- Manifest
- https://www.calculatorsoup.com/manifest.json?v=20230405
Technologies
Detected frameworks, languages, and tools.
Hosting & CDN
- Hosting provider
- —
- CDN provider
- —
- IP address
- —
- ASN
- —
DNS records
| Type | Value |
|---|---|
| A | — |
| AAAA | — |
| MX | — |
| TXT | — |
| NS | — |
| CAA | — |
| CNAME | — |
| IPv6 support | No |
TLS / SSL certificate
- Version
- TLS 1.3
- Issuer
- Sectigo Limited
- Subject
- calculatorsoup.com
- Valid from
- Dec 8, 2025
- Valid to
- Jan 8, 2027
- Days until expiry
- 160
- SAN domains
- calculatorsoup.com, www.calculatorsoup.com
Security headers
- Strict-Transport-SecurityMissing
- 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 6 · H3 6
Links
459 internal · 1 external · 20 broken
Images
1 total · 0 missing alt
Scripts / Styles
6 scripts · 2 stylesheets
JS / CSS size
2.2 KB · 11.5 KB
Page size
177 KB
Robots.txt & Sitemap
- robots.txt
- Not found
- Disallow rules
- 0
- sitemap.xml
- Not found
- URLs in sitemap
- 0
SEO issues
- robots.txt not found
- sitemap.xml not found
Accessibility issues
No accessibility issues detected.
Scan details
- Requested URL
- https://calculatorsoup.com
- Final URL
- https://www.calculatorsoup.com/
- HTTP status
- 200
- HTTP version
- HTTP/2
- Response time
- 528 ms
- HTML size
- 177 KB
- Redirect chain
- https://calculatorsoup.com → https://www.calculatorsoup.com/
See something wrong on this report? Request a correction
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Frequently asked questions
- What technology does calculatorsoup.com use?
- calculatorsoup.com is built with PHP, Google Analytics, Apache.
- Is calculatorsoup.com secure (HTTPS)?
- Yes. calculatorsoup.com uses TLS 1.3 with a certificate issued by Sectigo Limited, valid until Jan 8, 2027.
- Who hosts calculatorsoup.com?
- Hosting provider information for calculatorsoup.com is not available yet.
- What is calculatorsoup.com's SEO score?
- calculatorsoup.com scored 90/100 for SEO in the latest analysis (excellent).
- What is calculatorsoup.com's overall website score?
- calculatorsoup.com has an overall SiteGraph score of 88/100, combining SEO, performance, security, and accessibility.
- What company operates calculatorsoup.com?
- calculatorsoup.com is operated by Calculator Soup. Find the ideal calculator for math, science, statistics. Browse calculators for banking, finance, loans, time and date, conversion, fractions, algebra and more.
- Has calculatorsoup.com's score changed over time?
- calculatorsoup.com's overall score has declined by 3 points (from 91 to 88) since Jul 25, 2026.
OpenGraph & Twitter Card
OpenGraph
Twitter Card