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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bigpicture.ru

https://bigpicture.ru· First analyzed 22 Apr 2026· Updated 22 Apr 2026

Export

bigpicture.ru

Mobile

Sponsored

Hosting Provider

Selectel

IP Address

77.223.103.65

Site Location

🇷🇺 Russiavia tld

Server Location

🇷🇺 Moscow, Russia

ASN

AS50340

Organization

Selectel

Server

Nginx

Nameservers

ns4.selectel.ru.ns3.selectel.ru.ns2.selectel.ru.ns1.selectel.ru.

Performance

100

Core Web Vitals

Weight

First Contentful Paint

196 ms10%

Speed Index

255 ms10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

1.5 MB

91 requests

Image Optimization

Lazy LoadResponsive

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

WordPress

cms

BigPicture NEWv0.0.1Custom

by Daniil Tatarenko

Technology Stack

8 Technologies Detected

Analytics

Plugins

Libraries

CSS Frameworks

Fonts

Web Servers

SEO Analysis

B78/100

Meta Tags12/15

Content8/12

Headings5/8

Technical24/25

E-E-A-T2/7

Images4/7

Links4/5

URL5/5

Social4/5

Freshness4/4

Mobile3/4

Indexability3/3

bigpicture.rubigpicture.ru

БигПикча НОВОСТИ В ФОТОГРАФИЯХ

Сайт Бигпикча - это фоторепортажи, фотопроекты, полезные статьи, интересные истории, новости в фотографиях, лонгриды, тесты, мемы

Title Length30 chars

Recommended: 50-60 chars (~186px / 580px)

Description Length129 chars

Recommended: 120-160 chars

Issues (0)

6 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

214 URLs

214 sub-sitemaps

robots.txt

24 rules

Sitemap reference found

Local SEO

Local Search Readiness

14/100

Poor

4 13

This site doesn't appear to be a local business. Local SEO signals are optional for non-local websites.

Sponsored

AI & LLM Readiness

D43/100

Bot Access

20/25

Machine Read.

5/25

Schema Data

7/25

Citation

11/25

AI Bot Access

14/14 accessible

AI Search

OAI-SearchBot

PerplexityBot

Claude-SearchBot

Gemini-Deep-Research

DuckAssistBot

Training

GPTBot

ClaudeBot

Google-Extended

Meta-ExternalAgent

Bytespiderinfo

Amazonbot

Applebot-Extended

CCBotinfo

Fetch

ChatGPT-User

Machine Readability

llms.txt

llms-full.txt

Semantic HTML

Heading Hierarchy

navheader/footer

Text ratio:2%

Words:276

Token eff.:Too Short

Depth:2/5

Structured Data

4 JSON-LD

Organization×1.1WebSiteBreadcrumbListSearchAction

Citation Readiness

Opening Summary748w

Descriptive Headings

Canonical URL

Open Graph2/3

Twitter Card1/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (9)

AI readiness recommendation preview...

Upgrade to view recommendations

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Accessibility

WCAG 2.1 Compliance

Evaluates how accessible your website is for users with disabilities, based on WCAG 2.1 guidelines. Checks images, forms, keyboard navigation, ARIA roles, and color contrast.

65/100

Passed

Critical

Warnings

Images & Alt Text

15/20

Checks if images have descriptive alt text for screen readers and visually impaired users.

Semantic Structure

17/20

Evaluates proper use of HTML5 semantic elements (header, nav, main, footer) and heading hierarchy.

Forms & Inputs

10/15

Verifies form fields have labels, error messages are clear, and inputs are properly associated.

Color & Contrast

15/15

Tests text-to-background color contrast ratios against WCAG AA/AAA minimum requirements.

Keyboard & Focus

7/15

Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).

ARIA & Roles

1/15

Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.

3 recommendations

•Accessibility recommendation preview...

Upgrade to view recommendations

Carbon Footprint

SWDM v4 · Eco-Score

Carbon emissions estimated using the Sustainable Web Design Model v4 (SWDM v4). Factors in data center, network, and device energy across new and returning visitors. Grade thresholds based on HTTP Archive percentiles.

54/100

191 mg

CO₂e / view

1.5 MB

Page Weight

60%

Cleaner Than

New Visitor

218 mg

Returning (cached)

109 mg

Annual (10K/mo)

22.9 kg

Emission Segments

Data Center

43 mg

Network

46 mg

Device

102 mg

Resource Breakdown

JavaScript

346.8 KB

Images

1.1 MB

CSS

13.8 KB

Fonts

1.0 KB

HTML

19.0 KB

Green Hosting Not Verified

Selectel

4 recommendations

•Carbon footprint recommendation preview...

Upgrade to view recommendations

Security Score

36%Critical

Interactive

HTTPS

No WAF

67d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.2

HTTP Protocol

HTTP/2

Valid From

30.03.2026

Valid Until

28.06.2026

Subject Alternative Names (2)

bigpicture.ruwww.bigpicture.ru

SHA-256 Fingerprint

BB:B2:1E:D6:66:DC:24:51:C1:F6:19:1D:56:D5:DC:24:1D:E0:08:E9...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

accept-ranges

bytes

cache-control

🟡 0s(max-age=0)

content-encoding

📦 Gzip(gzip)

content-length

19172

content-type

text/html; charset=UTF-8

date

Wed, 22 Apr 2026 17:01:11 GMT

Good Warning Issue

Email Infrastructure

Yandex Mail

Score

SPF

DKIM

DMARC

MX Records (1)

mx.yandex.net

Domain Information

bigpicture.ru

Domain Age

17 years

Created

01.04.2009

Expires

01.04.2027

Registrar

MASTERHOST-RU

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

Mobile Compatibility

Viewport & Responsive Test

Tests how well your website works on mobile devices. Checks viewport configuration, responsive layout, touch targets, font readability, and simulates rendering across different screen sizes.

72/100

Mobile Friendly6 breakpoints

Viewport Meta

The viewport meta tag tells mobile browsers how to scale the page. Without it, mobile devices render at desktop width.

Responsive Design

Uses CSS media queries or flexible layouts to adapt content to different screen sizes automatically.

Touch Icons

Apple touch icons and favicons displayed when users add the site to their home screen on mobile devices.

Readable Font Size

Base font size should be at least 16px on mobile to ensure text is readable without zooming.

Relative Units

Using em, rem, %, or vw instead of fixed px values allows content to scale properly across screen sizes.

No H-Scroll Risk

No elements wider than the viewport that would cause horizontal scrolling on mobile devices.

Tap Targets OK

Interactive elements (buttons, links) are at least 48x48px with enough spacing to prevent accidental taps.

No Fixed Widths

No elements with fixed pixel widths that could overflow on smaller screens and break the layout.

Viewport

width=device-width, initial-scale=1.0

2 recommendations

•Mobile compatibility recommendation preview...

Upgrade to view recommendations

Typography & Readability

Montserrat

WCAG Partial

65/100

Readability

/30

16/30

12px · LH 2.00

Hierarchy

/20

14/20

2x ratio

WCAG

/25

17/25

1:1 min contrast

Performance

/25

18/25

1 font · 1 req

Heading Font

Montserrat

Sans24px

Body Font

Montserrat

Sans12px

Contrast Ratio

1:1

24 issues

Reading Comfort

~51 CPL

Optimal (45–75)

24px

16px

12px

❌ Critical: 12px body text is too small. Minimum 14px, recommend 16px+.

⚠️ Wide line spacing (2.00). 1.4–1.6 is optimal for body text.

✅ Optimal line length: ~51 chars/line (ideal 45–75 CPL).

⚠️ Partial contrast: 24 elements below WCAG AA threshold (min 1.0:1).

❌ Broken heading hierarchy: 2 level skip(s). Screen readers rely on sequential headings (h1→h2→h3).

✅ Strong hierarchy: Headlines are 2.0x larger than body text.

GGoogle Fonts Buy on MyFonts

Color Palette

10 unique colors

6.55:1 AA Light

#fbfbfb

Background· 22.599999999999998%

#5c5c4f

Secondary· 9.8%

#151211

Primary· 17.7%

#5c3a29

Secondary· 9%

#29251e

Secondary· 8.1%

#c1bdb2

Secondary· 8%

#826145

Secondary· 7.7%

#b29475

Secondary· 6.2%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

23 Resources

Scripts

Styles

Async

Defer

Top Script Sources

bigpicture.ru(9)web.tolstoycomments.com(1)jysypk.com(1)googletagmanager.com(1)s.luxcdn.com(1)

Website Identity

BigPicture.ru Новости в фотографиях

Organization

bigpicture.ru/

17 years old

Location detected: 🇷🇺 Russiavia tld

MASTERHOST-RU📧 Yandex Mailru

Social Profiles

Facebook X (Twitter)Telegram

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Last analyzed: 22 Apr 2026 at 17:01

Historical Analysis & Change Tracking