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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tf1info.fr

https://tf1info.fr· First analyzed 17 Feb 2026· Updated 17 Feb 2026

Export

tf1info.fr

Sponsored

Hosting Provider

Amazon Web Services (AWS)

aws.amazon.com

IP Address

15.197.129.244

Server Location

🇨🇦 Montreal, Canada

ASN

AS16509

Organization

AWS Global Accelerator (GLOBAL)

Nameservers

nsc.perf1.com.nsa.perf1.fr.ns1.coltfrance.com.nsb.perf1.com.

Performance

Page Speed

603 KB

120 requests

Image Optimization

Lazy LoadAVIFResponsive

0–49

50–89

90–100

Architecture Stack

Hybrid

⚙️ SSR

Frontend

Framework

Next.js

Infrastructure

Hosting

Amazon Web Services (AWS)

Technology Stack

5 Technologies Detected

Advertising

Google Ads Snapchat Pixel

Meta Frameworks

Next.js

CSS Frameworks

Tailwind CSS

Customer Support

Zendesk

SEO Analysis

A88/100

tf1info.frtf1info.fr

TF1 Info - Actualités du jour en direct : Actualité en France et à ...

TF1 Info, toute l’information des rédactions du groupe TF1. Avec TF1 Info (TF1 et LCI) suivez l’actualité en direct 7J/7 et 24/24.

Title truncated.

Title Length82 chars

Recommended: 50-60 chars

Description Length130 chars

Recommended: 120-160 chars

Issues (0)

2 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

robots.txt

106 rules

Sitemap reference found

Allows all crawlers

Sponsored

Security Score

21%Critical

Interactive

HTTPS

No WAF

126d

Certificate Details

Type

Organization Validated (OV)

Certificate Authority

GlobalSign nv-sa

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

22.05.2025

Valid Until

23.06.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

*.tf1info.frtf1info.fr

SHA-256 Fingerprint

CA:90:DE:FE:11:FF:4C:2E:D4:6B:CE:A5:ED:51:4B:39:8B:9F:A8:21...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

cache-control

🟡 30s(max-age=30)

content-encoding

⚡ Brotli(br)

content-type

text/html; charset=utf-8

date

Tue, 17 Feb 2026 03:16:59 GMT

etag

W/"158g0tq682szsg0"

expires

Tue, 17 Feb 2026 03:17:29 GMT

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

None (Monitor Only)

Domain Information

tf1info.fr

Domain Age

18y 8m

Created

21.06.2007

Expires

09.06.2026

Last Updated

02.07.2025

Registrar

NAMESHIELD

DNSSEC

Not Enabled

Privacy & Compliance

OneTrust

Cookie Consent Banner

OneTrust

GDPR Indicators

Cookie consent banner detected

CMP: OneTrust

Data Protection Officer mentioned

Typography & Readability

Overpass

70/100

Readability

/30

32/40

38px · LH 1.22

Hierarchy

/20

15/25

0.84x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

13/20

2 fonts

Heading Font

Overpass

Sans32px

Body Font

Overpass

Sans38px

Contrast Ratio

Reading Comfort

~45 CPL

Optimal (45–75)

32px

22px

36px

38px

Major Second

Scale

✅ Excellent readability: 38px body text is ideal for all devices.

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

✅ Good performance: Using 2 font families keeps load times fast.

✅ 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.

✅ Protected text on images: Using gradient for readability.

Buy on MyFonts

Business & Marketing Stack

5 Tools Detected

Enterprise

Behavior Analytics

Matomo (Piwik)Mid-Market

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Privacy & Cookies

Quantcast ChoiceMid-Market

Cookie consent and privacy compliance tools

A/B Testing & Optimization

AB TastyMid-Market

Experimentation and conversion optimization

Sponsored

Scripts & Styles

20 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(18)cdns.eu1.gigya.com(1)cdn.tagcommander.com(1)

Website Identity

tf1info.fr

18 years old

NAMESHIELD

Sponsored

Last analyzed: 17 Feb 2026 at 03:17

Historical Analysis & Change Tracking