jasperengines.com

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

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jasperengines.com

Mobile

Sponsored

Hosting Provider

WP Engine

wpengine.com

IP Address

141.193.213.11

Site Location

🇺🇸 United Statesvia ip

Server Location

🇺🇸 Austin, United States

ASN

AS209242

Organization

WPEngine, Inc.

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

ns4-35.azure-dns.info.ns1-35.azure-dns.com.ns2-35.azure-dns.net.ns3-35.azure-dns.org.

Performance

100

Core Web Vitals

Weight

First Contentful Paint

428 ms10%

Speed Index

556 ms10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

1.6 MB

116 requests

Image Optimization

Lazy LoadWebP

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

WordPress

cms

charg-childCustom

Technology Stack

23 Technologies Detected

Plugins

Header Footer Elementor

Filebird Document Library Pro

Real Time Auto Find And Replace Newsletter

Libraries

UI Components

CSS Frameworks

Analytics

Icon Libraries

Fonts

CDN

Customer Support

SEO Analysis

A81/100

Meta Tags15/15

Content10/12

Headings3/8

Technical24/25

E-E-A-T2/7

Images4/7

Links4/5

URL5/5

Social4/5

Freshness4/4

Mobile3/4

Indexability3/3

jasperengines.comjasperengines.com

JASPER remanufactured engines, transmissions & differentials

JASPER provides remanufactured gas engines, diesel engines, marine engines, transmissions and more for your car, truck or boat.

Title Length60 chars

Recommended: 50-60 chars (~362px / 580px)

Description Length127 chars

Recommended: 120-160 chars

Issues (1)

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

7 issues found

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Crawlability

Sitemap

Type: index

11 URLs

11 sub-sitemaps

robots.txt

4 rules

Sitemap reference found

Allows all crawlers

Local SEO

Local Search Readiness

29/100

Needs Work

9 10

Sponsored

AI & LLM Readiness

D50/100

Bot Access

20/25

Machine Read.

8/25

Schema Data

8/25

Citation

14/25

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

nav

Text ratio:3%

Words:1,420

Token eff.:Optimal

Depth:1/5

Structured Data

5 JSON-LD

Organization×1.1WebSiteBreadcrumbListSearchAction

sameAs entity links

Citation Readiness

Opening Summary369w

Descriptive Headingsavg 3.9w

Canonical URL

Open Graph3/3

Twitter Card1/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (10)

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.

82/100

Passed

Critical

Warnings

Images & Alt Text

20/20

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

Semantic Structure

11/20

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

12/15

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

ARIA & Roles

9/15

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.

65/100

166 mg

CO₂e / view

1.6 MB

Page Weight

60%

Cleaner Than

New Visitor

190 mg

Returning (cached)

95 mg

Annual (10K/mo)

19.9 kg

Emission Segments

Data Center

8 mg

Network

49 mg

Device

109 mg

Resource Breakdown

CSS

1.6 MB

HTML

45.9 KB

Green Hosting Verified

Google Cloud

GWF Verified

2 recommendations

•Carbon footprint recommendation preview...

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Security Score

31%Critical

Interactive

HTTPS

WAF

78d

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+H3

Valid From

10.05.2026

Valid Until

08.08.2026

Subject Alternative Names (1)

www.jasperengines.com

SHA-256 Fingerprint

87:FF:39:16:53:D9:CA:F2:7B:B2:E0:2C:21:B1:F1:55:68:EE:FC:F4...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

alt-svc

h3=":443"; ma=86400

cache-control

🟡 600s(max-age=600, must-revalidate)

cf-cache-status

DYNAMIC

cf-ray🇫🇷 Paris

9ff72e7b9e6a41fd-CDG

content-encoding

⚡ Brotli(br)

content-type

text/html; charset=UTF-8

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

Quarantine (Moderate)

MX Records (2)

mxa-008ce101.gslb.pphosted.com

mxb-008ce101.gslb.pphosted.com

Domain Information

jasperengines.com

Domain Age

30y 2m

Created

13.03.1996

Expires

14.03.2027

Last Updated

11.09.2023

Registrar

GoDaddy.com, LLC

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

Cookie consent banner detected

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.

78/100

Mobile Friendly19 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

1 recommendation

•Mobile compatibility recommendation preview...

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Typography & Readability

Lexend Deca + Roboto

WCAG Partial

62/100

Readability

/30

17/30

15px · LH 1.67

Hierarchy

/20

8/20

WCAG

/25

17/25

2.78:1 min contrast

Performance

/25

20/25

System fonts

Heading Font

Lexend Deca

Sans

Body Font

Roboto

Sans15px

Contrast Ratio

2.78:1

9 issues

Reading Comfort

Dual Sans-Serif

left aligned

40px

20px

18px

15px

⚠️ Small text: 15px may strain on mobile. Use ≥16px for WCAG compliance.

❌ Very complex text: Flesch score 30/100. Consider shorter sentences and simpler words.

⚠️ Partial contrast: 9 elements below WCAG AA threshold (min 2.8:1).

❌ Missing H1: Every page should have exactly one H1 element for SEO and accessibility.

✅ System fonts: Zero font loading delay — best possible LCP impact.

✅ Smart font loading: font-display: swap prevents invisible text during load (FOIT).

GGoogle FontsFlesch 30

Color Palette

7 unique colors

Light

#ffffff

Background· 50.400000000000006%

#ef2d36

Primary· 19.299999999999997%

#e8f1ee

Secondary· 14.1%

#15171a

Text· 7.6%

#cdbbba

Secondary· 4.5%

#8f5454

Secondary· 3.5%

#d6292f

Accent· 0.8%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

30 Resources

Scripts

Styles

Async

Defer

Top Script Sources

jasperengines.com(16)youtube.com(2)marvel-b2-cdn.bc0a.com(1)googletagmanager.com(1)

Website Identity

JASPER Engines & Transmissions

Organization

JASPER provides remanufactured gas engines, diesel engines, marine engines, transmissions and more for your car, truck or boat.

(800)827-7455

www.jasperengines.com/

30 years old

Location detected: 🇺🇸 United Statesvia ip

GoDaddy.com, LLCen-US

Social Profiles

Facebook X (Twitter)Instagram LinkedIn YouTube

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Last analyzed: 21 May 2026 at 22:58

Historical Analysis & Change Tracking