What does StackOptic analyze?

StackOptic runs 18 analysis modules on any public website from a single URL. It detects 7,000+ technologies (CMS, frameworks, analytics, payments, CDN, hosting), evaluates SSL certificates and HTTP security headers with grades from A+ to F, measures Core Web Vitals (LCP, CLS, TBT, FCP), audits SEO meta tags and structured data, checks email security (SPF, DKIM, DMARC), analyzes AI & LLM readiness including bot access and llms.txt validation, extracts color palettes and typography, estimates carbon footprint, and generates permanent shareable reports.

Does it work on sites behind Cloudflare or bot protection?

Yes. StackOptic uses a real browser engine that loads pages exactly like a human visitor — executing JavaScript, rendering CSS, and handling redirects. This allows it to bypass Cloudflare, LiteSpeed, Sucuri, and other bot protection systems where traditional crawlers and HTTP-only tools fail.

What do I get on the free plan?

The free plan includes 5 analyses per day with access to all 18 modules, full scores, technology detection, and security grades. Every report is permanently accessible via a unique shareable URL — no login required to view. No credit card needed. AI-powered insights, re-analysis, PDF/JSON export, and comparison features are available on Pro ($24/mo) and Agency ($99/mo) plans.

What is AI & LLM readiness analysis?

This module evaluates how visible and citable your website is to AI search engines like ChatGPT, Perplexity, Google AI Overviews, and Claude. It audits access permissions for 8 major AI bots, validates llms.txt and llms-full.txt files, scores citation-ready content structure, and analyzes structured data (JSON-LD) for GEO readiness — helping you rank in the next generation of search.

How long does an analysis take?

Most analyses complete in under 10 seconds. StackOptic runs all 18 modules in parallel using a real browser session, so you get technology detection, security audit, performance metrics, SEO analysis, and AI readiness scoring simultaneously.

How accurate are the results?

Detection is based on real browser execution — DOM inspection, JavaScript runtime analysis, HTTP headers, and DNS records. With 7,000+ technology signatures and Lighthouse-calibrated performance scoring, StackOptic achieves high accuracy for mainstream technologies.

What security checks are performed?

The security module evaluates SSL/TLS certificates, 12+ HTTP security headers (HSTS, CSP, X-Frame-Options, Permissions-Policy, Referrer-Policy), HTTPS enforcement, and email authentication (SPF, DKIM, DMARC). Each site receives a letter grade from A+ to F with specific remediation steps.

Do you store the websites I analyze?

StackOptic only stores publicly available information that any visitor to a website would see — HTML content, HTTP headers, DNS records, and screenshots. We do not access private data, log in to websites, or perform any intrusive testing.

Back to Search

hi.is

https://hi.is· First analyzed 18 Feb 2026· Updated 18 Feb 2026

Export

hi.is

Sponsored

Hosting Provider

Haskoli Islands

IP Address

130.208.165.58

Server Location

🇮🇸 Hafnarfjordur, Iceland

ASN

AS15474

Organization

Haskoli Islands

Server

Apache

Nameservers

dvalinn.rhnet.is.info.rhi.hi.is.borg.rhi.hi.is.

Performance

Page Speed

1.3 MB

36 requests

Image Optimization

Lazy Load

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Drupalv7

Technology Stack

12 Technologies Detected

Analytics

Libraries

CSS Frameworks

Icon Libraries

Tag Managers

Customer Support

Advertising

Web Servers

Languages

SEO Analysis

C64/100

hi.ishi.is

Háskóli Íslands |

Háskóli Íslands býður upp á fjölbreytt nám á grunn og framhaldsstigi. Lögð er áhersla á fræðilega nálgun og rannsóknatengt nám með góð tengsl við atvinnulíf ...

Description truncated.

Title Length17 chars

Recommended: 50-60 chars

Description Length169 chars

Recommended: 120-160 chars

Issues (0)

5 issues found

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Crawlability

Sitemap

Type: index

2 URLs

robots.txt

151 rules

Sponsored

Security Score

46%Poor

Interactive

HTTPS

No WAF

21d

Certificate Details

Type

Organization Validated (OV)

Certificate Authority

GlobalSign nv-sa

Key Algorithm

RSA (3072 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/1.1

Valid From

07.02.2025

Valid Until

11.03.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

*.hi.ishi.is

SHA-256 Fingerprint

41:EE:19:65:E8:AF:5E:A7:82:CD:1C:DA:66:89:DB:77:F1:EE:C7:0A...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

cache-control

🟡 1800s(public, max-age=1800)

connection

Keep-Alive

content-encoding

📦 Gzip(gzip)

content-language

content-type

text/html; charset=utf-8

date

Wed, 18 Feb 2026 01:48:33 GMT

Good Warning Issue

Email Infrastructure

Microsoft 365

Score

SPF

DKIM

DMARC

DMARC Policy

None (Monitor Only)

MX Records (1)

hi-is.mail.protection.outlook.com

Domain Information

hi.is

Domain Age

39y 2m

Created

11.12.1986

Last Updated

08.12.2025

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

Typography & Readability

Jost

58/100

Readability

/30

25/40

49px · LH 1.19

Hierarchy

/20

8/25

0.07x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

13/20

1 font

Heading Font

Jost

Sans4px

Body Font

Jost

Sans49px

Contrast Ratio

Reading Comfort

Single Font Family

left aligned

4px

51px

14px

49px

✅ Excellent readability: 49px body text is ideal for all devices.

⚠️ Tight line spacing (1.19). Consider 1.4-1.6 for better readability.

⚠️ Weak hierarchy: Headlines should be at least 2x body size for clear visual structure.

✅ Good performance: Using 1 font families keeps load times fast.

✅ Consistent design: Single font family with weight variations is a modern best practice.

✅ Protected text on images: Using gradient for readability.

Buy on MyFonts

Business & Marketing Stack

4 Tools Detected

Advanced

Customer Support

ZendeskEnterprise

Live chat and helpdesk tools

Behavior Analytics

Matomo (Piwik)Mid-Market

Google AnalyticsFree

Google Tag ManagerFree

User behavior and product analytics

Sponsored

Scripts & Styles

13 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(7)vefgreinir.hi.is(1)google-analytics.com(1)static.zdassets.com(1)

Website Identity

Facebook Instagram YouTube

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Last analyzed: 18 Feb 2026 at 01:48

Historical Analysis & Change Tracking