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

viadeo.com

https://viadeo.com· First analyzed 14 Feb 2026· Updated 14 Feb 2026

Export

viadeo.com

Mobile

Sponsored

Hosting Provider

CCM Benchmark Group

IP Address

195.248.251.103

Server Location

🇫🇷 Paris, France

ASN

AS43311

Organization

CCM Benchmark Group

Nameservers

a28-64.akam.net.a1-165.akam.net.a13-64.akam.net.a9-64.akam.net.+2 more

Performance

Page Speed

319 KB

56 requests

Image Optimization

Lazy Load

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

CCM Benchmark Group

Technology Stack

12 Technologies Detected

Advertising

Google Ads Google AdSense Outbrain

Libraries

Analytics

CSS Frameworks

Fonts

Tag Managers

Customer Support

Security

SEO Analysis

D58/100

viadeo.comviadeo.com

Viadeo : networking, réseautage professionnel

Avec Viadeo, développez votre réseau professionnel (collaborateurs, partenaires, clients, fournisseurs...). Évaluez aussi votre entreprise et découvrez les e...

Description truncated.

Title Length45 chars

Recommended: 50-60 chars

Description Length193 chars

Recommended: 120-160 chars

Issues (1)

• Missing H1 tag - every page should have one H1

5 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

robots.txt

10 rules

Sitemap reference found

Allows all crawlers

Sponsored

Security Score

0%Critical

Critical / Transactional

HTTPS

No WAF

30d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/1.1

Valid From

16.12.2025

Valid Until

16.03.2026

Subject Alternative Names (20)

actes.ccm2.netakm-creacdn.zebestof.comakm-imgcdn.zebestof.comakm-static.ccmbg.comandroid-dictionnaire.linternaute.comandroid-restaurant.linternaute.comastatic.ccmbg.comavis-deces.linternaute.com+12 more

SHA-256 Fingerprint

83:DB:47:C4:77:6F:33:6F:E7:72:57:87:DC:88:61:79:7D:0F:A7:81...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

connection

keep-alive

content-encoding

📦 Gzip(gzip)

content-language

content-length

15469

content-type

text/html; charset=UTF-8

date

Sat, 14 Feb 2026 11:20:49 GMT

Good Warning Issue

Email Infrastructure

Google Workspace

Score

SPF

DKIM

DMARC

MX Records (7)

aspmx2.googlemail.com

aspmx5.googlemail.com

aspmx3.googlemail.com

alt2.aspmx.l.google.com

+3 more

Domain Information

viadeo.com

Domain Age

20y 2m

Created

12.12.2005

Expires

12.12.2026

Last Updated

20.11.2025

Registrar

SafeBrands SAS

DNSSEC

Not Enabled

Privacy & Compliance

consentmanager

Cookie Consent Banner

consentmanager

GDPR Indicators

Cookie consent banner detected

CMP: consentmanager

Data Protection Officer mentioned

Typography & Readability

Open Sans + serif

43/100

Readability

/30

12/40

11px · LH 1.30

Hierarchy

/20

8/25

WCAG

/25

15/15

Contrast: undefined

Performance

/25

13/20

1 font

Heading Font

Open Sans

Serif

Body Font

serif

Serif11px

Contrast Ratio

Reading Comfort

~48 CPL

Optimal (45–75)

18px

11px

❌ Critical: 11px body text is too small. Increase to at least 14px.

✅ Good performance: Using 1 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.

✅ Optimal line length: ~48 characters per line is comfortable to read.

GGoogle Fonts

Business & Marketing Stack

5 Tools Detected

Enterprise

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Advertising

Google AdsEnterprise

Ad platforms and retargeting pixels

Privacy & Cookies

Quantcast ChoiceMid-Market

Cookie consent and privacy compliance tools

Social Media

Facebook SDKFree

Social widgets and sharing tools

Sponsored

Scripts & Styles

25 Resources

Scripts

Styles

Async

Defer

Top Script Sources

googletagmanager.com(3)astatic.ccmbg.com(3)securepubads.g.doubleclick.net(2)cdn.appconsent.io(2)ajax.googleapis.com(2)

Sponsored

Last analyzed: 14 Feb 2026 at 11:21

Historical Analysis & Change Tracking