vistracorp.com

https://vistracorp.com· First analyzed 21 May 2026· Updated 21 May 2026

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vistracorp.com

Mobile

Sponsored

Hosting Provider

Google Cloud Platform

cloud.google.com

IP Address

104.196.149.245

Site Location

🇺🇸 United Statesvia ip

Server Location

🇺🇸 North Charleston, United States

ASN

AS396982

Organization

Google Cloud (us-east1)

Server

Nginx

CDN

Nameservers

ns-1186.awsdns-20.org.ns-1797.awsdns-32.co.uk.ns-314.awsdns-39.com.ns-850.awsdns-42.net.

Performance

Core Web Vitals

Weight

First Contentful Paint

818 ms10%

Speed Index

1.1 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

31 KB

58 requests

Image Optimization

Lazy LoadResponsive

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

WordPressv6.9.4

cms

materialist

Technology Stack

14 Technologies Detected

Plugins

Materializer Js_Composer Parallax Backgrounds For Vc Megamenu

Libraries

CSS Frameworks

Analytics

Icon Libraries

Fonts

Web Servers

SEO Analysis

C65/100

Meta Tags8/15

Content3/12

Headings6/8

Technical22/25

E-E-A-T2/7

Images3/7

Links2/5

URL5/5

Social4/5

Freshness4/4

Mobile3/4

Indexability3/3

vistracorp.comvistracorp.com

Home - Vistra Corp.

Vistra is a premier Texas-based energy company focused on the competitive energy and power generation markets.

Title Length19 chars

Recommended: 50-60 chars (~116px / 580px)

Description Length110 chars

Recommended: 120-160 chars

Issues (2)

• Very thin content (4 words). Search engines need substantial content for ranking.
• Most images missing alt text (16/17) — critical for accessibility and SEO

8 issues found

Upgrade to view details

Crawlability

Sitemap

robots.txt

7 rules

Sitemap reference found

Local SEO

Local Search Readiness

17/100

Poor

5 12

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

Sponsored

AI & LLM Readiness

D44/100

Bot Access

20/25

Machine Read.

7/25

Schema Data

7/25

Citation

10/25

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

Text ratio:1%

Words:469

Token eff.:Optimal

Structured Data

5 JSON-LD

Organization×1.1WebSiteBreadcrumbListSearchAction

Citation Readiness

Opening Summary

Descriptive Headings

Canonical URL

Open Graph3/3

Twitter Card1/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (11)

AI readiness recommendation preview...

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Sponsored

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.

77/100

Passed

Critical

Warnings

Images & Alt Text

15/20

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

Semantic Structure

15/20

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

Forms & Inputs

15/15

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

11/15

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

ARIA & Roles

6/15

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

1 recommendation

•Accessibility recommendation preview...

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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.

82/100

A+

3 mg

CO₂e / view

30.9 KB

Page Weight

95%

Cleaner Than

New Visitor

4 mg

Returning (cached)

2 mg

Annual (10K/mo)

372 g

Emission Segments

Data Center

<0.001 g

Network

<0.001 g

Device

2 mg

Resource Breakdown

CSS

300 B

HTML

30.6 KB

Green Hosting Verified

Google Cloud

GWF Verified

2 recommendations

•Carbon footprint recommendation preview...

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Security Score

86%Very Good

Static / Informational

HTTPS

No WAF

153d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

GoDaddy.com, Inc.

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

21.10.2025

Valid Until

21.10.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

*.vistracorp.comvistracorp.com

SHA-256 Fingerprint

8C:20:BF:51:78:CA:8B:B3:E2:D9:05:90:1F:4B:4B:87:F0:4E:8B:29...

Recommendations

Security recommendation preview

Upgrade to view recommendations

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HTTP Headers

Developer Console

accept-ch

Sec-CH-UA-Mobile

cache-control

🟡 600s(max-age=600, must-revalidate)

cloudflare-cdn-cache-control

no-cache

content-encoding

⚡ Brotli(br)

content-security-policy

upgrade-insecure-requests

content-type

text/html; charset=UTF-8

Good Warning Issue

Email Infrastructure

Microsoft 365

Score

SPF

DKIM

DMARC

DMARC Policy

None (Monitor Only)

MX Records (1)

vistracorp-com.mail.protection.outlook.com

Domain Information

vistracorp.com

Domain Age

10 years

Created

18.05.2016

Expires

18.05.2027

Last Updated

19.05.2026

Registrar

GoDaddy.com, LLC

DNSSEC

Not Enabled

Privacy & Compliance

CookieYes

Cookie Consent Banner

CookieYes

GDPR Indicators

Cookie consent banner detected

CMP: CookieYes

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.

80/100

Mobile Friendly62 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, minimum-scale=0.8

1 recommendation

•Mobile compatibility recommendation preview...

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Typography & Readability

Montserrat + Helvetica

WCAG Partial

69/100

Readability

/30

19/30

14px · LH 1.60

Hierarchy

/20

16/20

4x ratio

WCAG

/25

16/25

1:1 min contrast

Performance

/25

18/25

2 fonts · 6 req

Heading Font

Montserrat

Sans56px

Body Font

Helvetica

Sans14px

Contrast Ratio

1:1

22 issues

Reading Comfort

~42 CPL

Narrow lines

56px

18px

24px

20px

14px

⚠️ Small text: 14px may strain on mobile. Use ≥16px for WCAG compliance.

✅ Optimal line spacing: 1.60 ratio (ideal range 1.4–1.6).

⚠️ Hard to read: Flesch score 34/100. Simplify sentences for wider reach.

⚠️ Partial contrast: 22 elements below WCAG AA threshold (min 1.0:1).

⚠️ Minor heading issue: 1 level skip(s) detected. Maintain sequential order for screen readers.

✅ Strong hierarchy: Headlines are 4.0x larger than body text.

Buy on MyFontsFlesch 34

Color Palette

12 unique colors

Light

#ffffff

Background· 26.1%

#013f6e

Accent· 13.5%

#3b6b8f

Secondary· 7.3%

#c6d4de

Secondary· 6.7%

#b3c5d3

Secondary· 6.5%

#8da9be

Secondary· 6.4%

#789aaf

Secondary· 6.3%

#507b9c

Primary· 6.1%

Business & Marketing Stack

2 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Privacy & Cookies

CookieYesSMB

Cookie consent and privacy compliance tools

Sponsored

Scripts & Styles

30 Resources

Scripts

Styles

Async

Defer

Top Script Sources

cdn-ilbfedf.nitrocdn.com(15)cdn.userway.org(2)accessibilityserver.org(1)googletagmanager.com(1)cdn-cookieyes.com(1)

Website Identity

Home - Vistra Corp.

Vistra is a premier Texas-based energy company focused on the competitive energy and power generation markets.

vistracorp.com/

10 years old

Location detected: 🇺🇸 United Statesvia ip

GoDaddy.com, LLC📧 Microsoft 365en-US

Sponsored

Last analyzed: 21 May 2026 at 00:29

Historical Analysis & Change Tracking