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.

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riksdagen.se

https://riksdagen.se· First analyzed 18 Feb 2026· Updated 18 Feb 2026

Export

riksdagen.se

Sponsored

Hosting Provider

SUNET C

IP Address

193.11.1.15

Server Location

🇸🇪 Stockholm, Sweden

ASN

AS1653

Nameservers

ns1.riksdagen.se.ns2.riksdagen.se.

Performance

Page Speed

430 KB

76 requests

Image Optimization

Lazy LoadResponsive

0–49

50–89

90–100

Architecture Stack

Hybrid

⚙️ SSR

Frontend

Framework

Next.js

Styling

Tailwind CSS

CMS

Optimizely CMS (Episerver)

Infrastructure

Hosting

SUNET C

CDN

Vercel Image

Progressive Web App

Web ManifestApple Touch IconTheme Color

Technology Stack

4 Technologies Detected

Meta Frameworks

Other

CSS Frameworks

Analytics

SEO Analysis

C64/100

riksdagen.seriksdagen.se

Start | Sveriges riksdag

Här kan du läsa om riksdagens arbete och beslut, söka bland alla riksdagens dokument och lagar och hitta riksdagens ledamöter och partier.

Title Length24 chars

Recommended: 50-60 chars

Description Length138 chars

Recommended: 120-160 chars

Issues (0)

5 issues found

Upgrade to view details

Crawlability

Sitemap

robots.txt

7 rules

Sitemap reference found

Allows all crawlers

Sponsored

A+

Security Score

90%Excellent

Static / Informational

HTTPS

No WAF

283d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Hellenic Academic and Research Institutions CA

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/1.1

Valid From

28.11.2025

Valid Until

28.11.2026

OCSP Stapling

Enabled

Subject Alternative Names (7)

www.riksdagen.sefirademokratin.riksdagen.separleu2023.riksdagen.seriksdagen.sebeta.riksdagen.seeu.riksdagen.sedata.riksdagen.se

SHA-256 Fingerprint

7A:D7:C5:77:B3:60:87:BA:81:E1:5D:85:04:C4:5B:3B:88:CF:EF:B8...

Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

cache-control

🔵 Public(public, s-maxage=60, stale-while-revalidate=120)

content-encoding

⚡ Brotli(br)

content-length

52059

content-type

text/html; charset=utf-8

date

Wed, 18 Feb 2026 02:57:22 GMT

etag

"4vhoxl0oky85hx"

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

Reject (Strictest)

MX Records (3)

mailgw3.riksdagen.se

mailgw2.riksdagen.se

mailgw.riksdagen.se

Domain Information

riksdagen.se

DNSSEC

Not Enabled

Typography & Readability

__Open_Sans_ee216b

81/100

Readability

/30

40/40

16px · LH 1.61

Hierarchy

/20

11/25

1.12x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

20/20

System fonts

Heading Font

__Open_Sans_ee216b

Sans18px

Body Font

__Open_Sans_ee216b

Sans16px

Contrast Ratio

Reading Comfort

~34 CPL

Needs attention

18px

21px

16px

Minor Second

Scale

✅ Excellent readability: 16px body text is ideal for all devices.

✅ Optimal line spacing: 1.61 ratio ensures comfortable reading.

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

✅ Excellent performance: System fonts eliminate font loading delays (better LCP).

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

✅ Smart font loading: Using font-display: swap prevents invisible text during load.

Buy on MyFontsVariable Fonts

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

21 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(20)

Website Identity

X (Twitter)Instagram LinkedIn YouTube Bluesky

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Last analyzed: 18 Feb 2026 at 02:57

Historical Analysis & Change Tracking