81
/ 100
A
Great
Overall Domain Score
SEO 85 · LLM 73 · Perf 82
85
π SEO Score
11 / 13 checks passed
73
π€ LLM Readiness
8 / 11 checks passed
82
β‘ Performance
9 / 11 checks passed
π Extracted Page Tags
Title Tag
Calculator+iO β Online Calculators for Fitness, Science, Math, Finance, Health
Meta Description
Find the calculator you need with our extensive collection of free online calculators! We've got you covered from finance to math, health to physics. Try it now!
H1 Heading
Calculator+iO
Canonical URL
https://www.calculator.io/
π SEO Audit
85/100β Title Tag
Length: 78 chars (Ideal: 30-60).
β Meta Description
Length: 161 chars (Ideal: 50-160).
β
H1 Tag
Found 1 H1 tags. Exactly 1 is recommended.
β
Canonical URL
Canonical URL is set.
β
Open Graph Tags
Found 32 OG properties (4+ recommended).
β
Indexability
Page allows indexing.
β
Mobile Viewport
Viewport meta tag present.
β
Image Alt Text
0 of 6 images missing alt.
β
Sitemap
Sitemap declared.
β
Heading Hierarchy
H1 and H2 structure detected.
β
Internal Links
Found 70 internal links.
β
HSTS Security
HSTS header present.
β
HTTPS
Loads securely over HTTPS.
π€ LLMO
73/100β
Structured Data (JSON-LD)
Found 1 JSON-LD blocks.
β
Schema Entities
Types: organization
β FAQ Schema
Missing FAQ schema.
β
Contextual Summary
Description provides good AI context.
β E-E-A-T (Author)
No author meta or schema.
β
Organisation Schema
Business entity defined.
β Breadcrumb Schema
Missing BreadcrumbList.
β
AI Crawler Access
AI agents not blocked.
β
Language Declaration
Language set to 'en'.
β
Semantic Structure
Uses <main> or <article>.
β
Entity Verification Links
Social/publisher profiles linked.
β‘ Performance
82/100Network Waterfall (Total: 336ms)
- DNS: 125ms
- Connect: 133ms
- TTFB: 174ms
- Download: 162ms
β
Time to First Byte (TTFB)
TTFB: 174ms (Target: < 600ms).
β
HTML Payload Size
Raw HTML: 11.3KB (Target: < 150KB).
β
Text Compression
Compression enabled (gzip).
β
Cache Policies
Cache-Control headers set.
β
CDN Usage
Edge delivery detected.
β
Secure Delivery (HTTPS)
Served securely.
β Modern Protocol
Using HTTP/1.1.
β Native Lazy Loading
No lazy loading detected.
β
Minified Assets
Minified .js/.css referenced.
β
Preload / Preconnect Hints
Resource hints found.
β
Character Set
UTF-8 declared.
π‘οΈ Security & Blacklist
Cleanβ
Domain is clean.
β
Spamhaus DBLVerify β
Lookup inconclusive β use the Verify link to check manually.
β
SURBLVerify β
Not listed β no threats detected.
β
URIBLVerify β
Lookup inconclusive β use the Verify link to check manually.
β
Google Safe BrowsingVerify β
No unsafe content found per Google Safe Browsing.
βοΈ Technologies
E-Commerce
Magento
Analytics & Tracking
Google AnalyticsGoogle Tag Manager
Advertising
Google Ads
Infrastructure & CDN
Cloudflare
π WHOIS
Registrar
Cloudflare, Inc
Registered
2010-05-06T13:53:09Z
Expires
2029-05-06T13:53:09Z
Last Updated
2023-11-25T20:24:56Z
Status
clientTransferProhibited https://icann.org/epp#clientTransferProhibited
Name Servers
miles.ns.cloudflare.com, maria.ns.cloudflare.com
Registrant Org
Registrant Street: REDACTED
π DNS Records
| Type | Value |
|---|---|
| A | 104.26.4.39 |
| A | 104.26.5.39 |
| A | 172.67.72.174 |
| MX | route2.mx.cloudflare.net |
| MX | route3.mx.cloudflare.net |
| MX | route1.mx.cloudflare.net |
| TXT | google-site-verification=CFYrtcCtYnF58I330gciYwsTLg5EnWrVSlVOiOtYmQQ |
| TXT | hosting-site=calculator-io-db8f2 |
| TXT | v=spf1 a mx include:_spf.google.com include:_spf.mx.cloudflare.net ~all |
| TXT | google-site-verification=5lXWLQxEcH0h_nEZylVillwdZ84SUGgNtSvvnaLgqpE |
| NS | maria.ns.cloudflare.com |
| NS | miles.ns.cloudflare.com |