calculator-online.net
Calculator Online - 100% Free, Reliable & Accurate Calculators
Last scanned Jul 26, 2026, 11:19 AM
Overall score
Great
Summary
The 100% free and reliable online calculators that help you to solve any calculation-related problems and provides you with the precise measurements. This website uses PHP behind Cloudflare CDN. SEO is fair (70/100) and accessibility is excellent (100/100). Security scores good (80/100) and performance excellent (90/100). Top issue: Title longer than 60 characters.
The 100% free and reliable online calculators that help you to solve any calculation-related problems and provides you with the precise measurements.
Top issues to fix
9 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.
1 cookie without Secure/HttpOnly flags
SecuritySet Secure and HttpOnly on session cookies so they can't leak over HTTP or be read by injected scripts.
Title longer than 60 characters
SEOShorten the title to under 60 characters so search results don't truncate it.
No structured data (JSON-LD) found
SEOAdd JSON-LD (Organization, Article, Product…) to become eligible for rich results.
Missing OpenGraph tags
SEOAdd og:title/og:description/og:image so shared links render a proper preview card.
+3 more issues — details in the sections below.
SEO
5 issue(s) found
Performance
792 ms
Security
HTTPS & header checks
Accessibility
0 issue(s) found
Organization
Company details published in this site's own structured data.
The 100% free and reliable online calculators that help you to solve any calculation-related problems and provides you with the precise measurements.
Meta tags
- Title
- Calculator Online - 100% Free, Reliable & Accurate Calculators
- Description
- The 100% free and reliable online calculators that help you to solve any calculation-related problems and provides you with the precise measurements.
- Canonical
- https://calculator-online.net/
- Language
- en
- Charset
- UTF-8
- Viewport
- width=device-width, initial-scale=1.0
- Robots meta
- Manifest
Technologies
Detected frameworks, languages, and tools.
Hosting & CDN
- Hosting provider
- —
- CDN provider
- Cloudflare
- 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
- Google Trust Services
- Subject
- calculator-online.net
- Valid from
- Jul 13, 2026
- Valid to
- Oct 11, 2026
- Days until expiry
- 74
- SAN domains
- calculator-online.net, *.calculator-online.net
Security headers
- Strict-Transport-SecurityMissing
- Content-Security-PolicyMissing
- X-Frame-OptionsEnabled
- X-Content-Type-OptionsEnabled
- Referrer-PolicyEnabled
- Permissions-PolicyMissing
Compression: gzip · 2 cookie(s) observed
Content & assets
Headings
H1 1 · H2 19 · H3 0
Links
307 internal · 5 external · 20 broken
Images
150 total · 0 missing alt
Scripts / Styles
14 scripts · 1 stylesheets
JS / CSS size
47.2 KB · 31.6 KB
Page size
392 KB
Robots.txt & Sitemap
- robots.txt
- Not found
- Disallow rules
- 0
- sitemap.xml
- Not found
- URLs in sitemap
- 0
SEO issues
- Title longer than 60 characters
- 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://calculator-online.net
- Final URL
- https://calculator-online.net
- HTTP status
- 200
- HTTP version
- HTTP/2
- Response time
- 784 ms
- HTML size
- 392 KB
- Redirect chain
- https://calculator-online.net
See something wrong on this report? Request a correction
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Frequently asked questions
- What technology does calculator-online.net use?
- calculator-online.net is built with Laravel, PHP, Google Analytics, Cloudflare Analytics.
- Is calculator-online.net secure (HTTPS)?
- Yes. calculator-online.net uses TLS 1.3 with a certificate issued by Google Trust Services, valid until Oct 11, 2026.
- Who hosts calculator-online.net?
- Hosting provider information for calculator-online.net is not available yet.
- What is calculator-online.net's SEO score?
- calculator-online.net scored 70/100 for SEO in the latest analysis (fair).
- What is calculator-online.net's overall website score?
- calculator-online.net has an overall SiteGraph score of 84/100, combining SEO, performance, security, and accessibility.
OpenGraph & Twitter Card
OpenGraph
Twitter Card