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sempra.com

https://sempra.com· First analyzed 10 May 2026· Updated 10 May 2026
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sempra.com
Desktop screenshot of sempra.com
Mobile screenshot of sempra.com
Mobile

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Hosting Provider

Pantheon
pantheon.io

IP Address

23.185.0.1

Site Location

🇺🇸 United Statesvia ip

Server Location

🇺🇸 San Francisco, United States

ASN

AS54113

Organization

Pantheon

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

pdns6.ultradns.co.uk.pdns1.ultradns.net.pdns2.ultradns.net.pdns3.ultradns.org.+2 more

Performance

98

Core Web Vitals

Weight

First Contentful Paint
908 ms10%
Speed Index
1.2 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
5.1 MB
184 requests

Image Optimization

Lazy Load
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Frontend
Framework
Alpine.js
CMS
Drupal
Infrastructure
Hosting
Pantheon
CDN
Cloudflare

Technology Stack

19 Technologies Detected

Analytics

4
Google Analytics
Google Analytics 4
Microsoft ClarityFullStory

Libraries

2
jQuery
jQuery UI

CSS Frameworks

2
Bootstrap
Tailwind CSS

Advertising

2
Google AdsLinkedIn Ads

Frameworks

1
Alpine.js

UI Components

1
Slick Carousel

Other

1
Lottie

Other

1
lazysizes

Icon Libraries

1
Font Awesome

Tag Managers

1
Google Tag Manager

Social

1
ShareThis

CDN

1
Cloudflare

Security

1
reCAPTCHA

SEO Analysis

A80/100
26
5
1
Meta Tags9/15
Content12/12
Headings3/8
Technical21/25
E-E-A-T5/7
Images5/7
Links5/5
URL5/5
Social4/5
Freshness4/4
Mobile4/4
Indexability3/3
S
sempra.comsempra.com

Home | Sempra

As owners of one of the largest energy networks in America, nearly 40 million consumers rely on Sempra for safe, reliable and affordable energy.

Title Length13 chars

Recommended: 50-60 chars (~84px / 580px)

Description Length144 chars

Recommended: 120-160 chars

Issues (1)

  • • Missing H1 tag — every page should have exactly one H1

6 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

1,168 URLs

robots.txt

76 rules

Local SEO

Local Search Readiness

12/100
Poor
3 13 1

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

Sponsored

AI & LLM Readiness

D47/100
Bot Access
15/25
Machine Read.
10/25
Schema Data
1/25
Citation
21/25

AI Bot Access

6/14 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
nav
Text ratio:5%
Words:1,431
Token eff.:Optimal
Sections/1K:10.5
Depth:1/5

Structured Data

1 JSON-LD
Person×1.3(min)

Citation Readiness

Opening Summary423w
Descriptive Headingsavg 5.5w
Canonical URL
Open Graph3/3
Twitter Card1/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (8)
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.
A
82/100
13
Passed
2
Critical
1
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
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
13/15
Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).
ARIA & Roles
7/15
Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
1 recommendation
  • •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.
22/100
F
647 mg
CO₂e / view
5.1 MB
Page Weight
15%
Cleaner Than
New Visitor
740 mg
vs
Returning (cached)
370 mg
Annual (10K/mo)
77.7 kg
Emission Segments
Data Center
145 mg
Network
155 mg
Device
347 mg
Resource Breakdown
JavaScript
476.1 KB
Images
3.5 MB
CSS
1.0 MB
Fonts
86.7 KB
HTML
18.0 KB
Other
2.5 KB
Green Hosting Not Verified
Pantheon
7 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
A

Security Score

86%Very Good
Interactive

HTTPS

WAF

67d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

ECDSA (secp256r1) (256 bit)

Signature

ECDSA with SHA-384

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

17.04.2026

Valid Until

16.07.2026

Subject Alternative Names (1)

www.sempra.com

SHA-256 Fingerprint

D7:8F:DC:D6:FB:D6:55:48:53:63:2A:0F:48:8D:73:8E:1A:E8:67:BE...

Upgrade to view header details

HTTP Headers

Developer Console

age
35
cache-control
🟡 300s(max-age=300, public)
cf-cache-status
DYNAMIC
cf-ray🇫🇷 Paris
9f99f70a9e5f22a4-CDG
content-encoding
⚡ Brotli(br)
content-language
en
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

95

SPF
DKIM
DMARC

DMARC Policy

Reject (Strictest)

MX Records (2)

mxa-000c8601.gslb.pphosted.com
mxb-000c8601.gslb.pphosted.com

Domain Information

sempra.com

Domain Age
28y 5m

Created

11.12.1997

Expires

10.12.2026

Last Updated

06.12.2024

Registrar

CSC Corporate Domains, Inc.

DNSSEC
Not Enabled

Privacy & Compliance

Cookie Consent Banner
Privacy Policy
Terms of Service

GDPR Indicators

Privacy policy page linked

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.
C
66/100
Mobile Friendly1 breakpoint
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, shrink-to-fit=no
1 recommendation
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

Interstate

WCAG Partial
67/100
Readability
/30
22/30

17px · LH 1.47

Hierarchy
/20
17/20

3.82x ratio · ✓ H1→H6

WCAG
/25
12/25

1:1 min contrast

Performance
/25
16/25

1 font · 10 req

Heading Font

Interstate

Sans65px

Body Font

Interstate

Sans17px

Contrast Ratio

1:1

15 issues

Reading Comfort

~39 CPL

Narrow lines
65px
h1
68px
h2
55px
h3
26px
h4
17px
p

✅ Excellent readability: 17px body text is ideal for all devices.

✅ Optimal line spacing: 1.47 ratio (ideal range 1.4–1.6).

⚠️ Partial contrast: 15 elements below WCAG AA threshold (min 1.0:1).

✅ Perfect heading hierarchy: Sequential h1→h2→h3 with single H1 — ideal for SEO & accessibility.

✅ Strong hierarchy: Headlines are 3.8x larger than body text.

❌ Pure vw font sizes: Viewport units alone break browser zoom (WCAG 1.4.4 fail). Use clamp(rem, vw, rem).

Buy on MyFonts

Color Palette

10 unique colors
Light
#ffffff
Background· 21.5%
#021f93
Primary· 19.2%
#182a4c
Accent· 14.600000000000001%
#023cb0
Accent· 10%
#0175ef
Primary· 9%
#0b3580
Accent· 7.6%
#015ad2
Accent· 6.3%
#0d63bd
Accent· 5.5%

Business & Marketing Stack

6 Tools Detected

Enterprise

Behavior Analytics

3
Google Tag ManagerFree
Google AnalyticsFree
Microsoft ClarityFree

User behavior and product analytics

Advertising

2
LinkedIn AdsEnterprise
Reddit PixelMid-Market

Ad platforms and retargeting pixels

Social Media

1
ShareThisFree

Social widgets and sharing tools

3

Categories

6

Total Tools

1

Enterprise

1

Mid-Market

Assessment: Sophisticated marketing and sales technology infrastructure

Sponsored

Scripts & Styles

30 Resources

20
Scripts
10
Styles
14
Async
1
Defer

Top Script Sources

local(6)googletagmanager.com(4)gstatic.com(1)sc.lfeeder.com(1)acdn.adnxs.com(1)

Website Identity

Home

At Sempra, we are building the energy network of the future, today. We focus on responsible energy solutions, including natural gas distribution and wind and...

28 years old
Location detected: 🇺🇸 United Statesvia ip
CSC Corporate Domains, Inc.en

Sponsored

Last analyzed: 10 May 2026 at 15:27

Historical Analysis & Change Tracking