remainder.info
Remainder Calculator - Fast Division With Remainder Tool | Remainder.info
Last scanned Aug 24, 2026, 1:23 PM
Overall score
Great
Summary
Free online remainder calculator. This website uses PHP hosted on HETZNER-AS - Hetzner Online GmbH, DE. SEO is good (80/100) and accessibility is excellent (100/100). Security scores fair (65/100) and performance excellent (100/100). Top issue: Title longer than 60 characters.
Free online remainder calculator. Calculate division with remainders instantly using long division method. Learn quotient and remainder formulas with step-by-step examples.
- Germany
- Hosted on HETZNER-AS - Hetzner Online GmbH, DE
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.
Title longer than 60 characters
SEOShorten the title to under 60 characters so search results don't truncate it.
Meta description longer than 160 characters
SEOTrim the meta description to under 160 characters to avoid truncation in search results.
+1 more issue — details in the sections below.
SEO
3 issue(s) found
Performance
313 ms
Security
HTTPS & header checks
Accessibility
0 issue(s) found
Organization
Company details published in this site's own structured data.
Free online remainder calculator. Calculate division with remainders instantly using long division method. Learn quotient and remainder formulas with step-by-step examples.
Contact
Email, phone, and address published on this site's own pages.
Meta tags
- Title
- Remainder Calculator - Fast Division With Remainder Tool | Remainder.info
- Description
- Free online remainder calculator. Calculate division with remainders instantly using long division method. Learn quotient and remainder formulas with step-by-step examples.
- Canonical
- https://remainder.info
- Language
- en
- Charset
- UTF-8
- Viewport
- width=device-width, initial-scale=1, maximum-scale=1
- Robots meta
- index,follow,all
- Manifest
Technologies
Detected frameworks, languages, and tools.
Hosting & CDN
- Hosting provider
- HETZNER-AS - Hetzner Online GmbH, DE
- CDN provider
- —
- IP address
- 65.21.116.169
- ASN
- AS24940 (HETZNER-AS - Hetzner Online GmbH, DE)
DNS records
| Type | Value |
|---|---|
| A |
|
| AAAA | — |
| MX |
|
| TXT |
|
| NS |
|
| CAA | — |
| CNAME | — |
| IPv6 support | No |
TLS / SSL certificate
- Version
- TLS 1.3
- Issuer
- Let's Encrypt
- Subject
- remainder.info
- Valid from
- Jul 8, 2026
- Valid to
- Oct 6, 2026
- Days until expiry
- 42
- SAN domains
- *.remainder.info, remainder.info
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 1 · H2 10 · H3 17
Links
39 internal · 0 external · 0 broken
Images
1 total · 0 missing alt
Scripts / Styles
11 scripts · 1 stylesheets
JS / CSS size
775 KB · 22.7 KB
Page size
14.9 KB
Robots.txt & Sitemap
- robots.txt
- Found
- Disallow rules
- 0
- sitemap.xml
- Found
- URLs in sitemap
- 4514
SEO issues
- Title longer than 60 characters
- Meta description longer than 160 characters
- No structured data (JSON-LD) found
Accessibility issues
No accessibility issues detected.
Scan details
- Requested URL
- https://remainder.info
- Final URL
- https://remainder.info
- HTTP status
- 200
- HTTP version
- HTTP/1.1
- Response time
- 313 ms
- HTML size
- 14.9 KB
- Redirect chain
- https://remainder.info
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Frequently asked questions
- What technology does remainder.info use?
- remainder.info is built with PHP, Google Analytics, Google Ads, Nginx.
- Is remainder.info secure (HTTPS)?
- Yes. remainder.info uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Oct 6, 2026.
- Who hosts remainder.info?
- remainder.info is hosted on HETZNER-AS - Hetzner Online GmbH, DE.
- What is remainder.info's SEO score?
- remainder.info scored 80/100 for SEO in the latest analysis (great).
- What is remainder.info's overall website score?
- remainder.info has an overall SiteGraph score of 85/100, combining SEO, performance, security, and accessibility.
OpenGraph & Twitter Card
OpenGraph
Twitter Card