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

buzzfeednews.com

https://buzzfeednews.com· First analyzed 12 Feb 2026· Updated 12 Feb 2026

Export

buzzfeednews.com

Mobile

Sponsored

Hosting Provider

Fastly, Inc.

IP Address

151.101.130.114

Server Location

🇨🇦 Montreal, Canada

ASN

AS54113

Organization

Fastly, Inc.

Server

Nginx

CDN

Fastly

Nameservers

ns-595.awsdns-10.net.ns-1029.awsdns-00.org.ns-118.awsdns-14.com.ns-1695.awsdns-19.co.uk.

Performance

Page Speed

3.1 MB

99 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

Fastly, Inc.

CDN

Fastly

Technology Stack

6 Technologies Detected

Analytics

Facebook Pixel Sentry

Advertising

Google Ads Google AdSense

CSS Frameworks

Tailwind CSS

Web Servers

Nginx

SEO Analysis

A84/100

buzzfeednews.combuzzfeednews.com

BuzzFeed News | Breaking News | Original Reporting | News Analysis

BuzzFeed News has breaking stories and original reporting on politics, world news, social media, viral trends, health, science, technology, entertainment, an...

Description truncated.

Title Length66 chars

Recommended: 50-60 chars

Description Length172 chars

Recommended: 120-160 chars

Issues (0)

2 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

4 URLs

robots.txt

156 rules

Sitemap reference found

Sponsored

A+

Security Score

96%Excellent

Static / Informational

HTTPS

No WAF

361d

Certificate Details

Type

Domain Validated (DV)

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

07.01.2026

Valid Until

08.02.2027

OCSP Stapling

Enabled

Subject Alternative Names (16)

*.buzzfeed.com*.buzzfeed.bio*.buzzfeednews.com*.bzfd.bio*.contagiousmedia.com*.tasty.cobuzzfeed.biobuzzfeed.com+8 more

SHA-256 Fingerprint

3F:A7:9A:CB:B1:F3:E6:C5:90:76:A4:48:D1:CB:5F:C9:F2:09:3E:FE...

Upgrade to view header details

HTTP Headers

Developer Console

accept-ranges

bytes

age

3108

cache-control

🔴 No Cache(no-cache, no-store, must-revalidate)

content-encoding

⚡ Brotli(br)

content-length

66227

content-security-policy

upgrade-insecure-requests

Good Warning Issue

Email Infrastructure

Google Workspace

Score

SPF

DKIM

DMARC

DMARC Policy

Quarantine (Moderate)

MX Records (5)

aspmx3.googlemail.com

alt2.aspmx.l.google.com

alt1.aspmx.l.google.com

aspmx2.googlemail.com

+1 more

Domain Information

buzzfeednews.com

Domain Age

12y 6m

Created

22.07.2013

Expires

22.07.2026

Last Updated

20.06.2024

Registrar

MarkMonitor Inc.

DNSSEC

Not Enabled

Privacy & Compliance

OneTrust

Cookie Consent Banner

OneTrust

GDPR Indicators

Cookie consent banner detected

CMP: OneTrust

Data Protection Officer mentioned

Legitimate interest basis mentioned

Typography & Readability

Basier

76/100

Readability

/30

40/40

16px · LH 1.50

Hierarchy

/20

13/25

1.75x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

13/20

1 font

Heading Font

Basier

Sans28px

Body Font

Basier

Sans16px

Contrast Ratio

Reading Comfort

~39 CPL

Needs attention

28px

14px

16px

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

✅ Optimal line spacing: 1.50 ratio ensures comfortable reading.

✅ Good hierarchy: Clear distinction between headlines and body text.

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

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

⚠️ Cramped layout: 41 elements lack adequate spacing.

Buy on MyFonts

Business & Marketing Stack

4 Tools Detected

Enterprise

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Advertising

Google AdsEnterprise

Facebook PixelMid-Market

Ad platforms and retargeting pixels

Privacy & Cookies

OneTrustEnterprise

Cookie consent and privacy compliance tools

Sponsored

Scripts & Styles

15 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(5)securepubads.g.doubleclick.net(2)connect.facebook.net(2)cdn.cookielaw.org(1)pagead2.googlesyndication.com(1)

Website Identity

buzzfeednews.com

12 years old

MarkMonitor Inc.📧 Google Workspace

Social Profiles

X (Twitter)

Sponsored

Last analyzed: 12 Feb 2026 at 13:10

Historical Analysis & Change Tracking