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wpmailsmtp.com

WP Mail SMTP Pro - #1 WordPress SMTP Plugin in the World

Last scanned Aug 7, 2026, 5:00 AM · 5 views

91

Overall score

Excellent

Summary

WP Mail SMTP is the #1 WordPress SMTP plugin with over 4 million active installs. This website uses WordPress hosted on Cloudflare behind Cloudflare CDN. SEO is excellent (100/100) and accessibility is excellent (100/100). Security scores good (75/100) and performance excellent (90/100).

WP Mail SMTP is the #1 WordPress SMTP plugin with over 4 million active installs. We help you fix WordPress email issues and make email deliverability easy.

United States
Hosted on Cloudflare

Top issues to fix

3 issues found · 2 high priority

  • Missing Strict-Transport-Security header

    Security

    Add HSTS so browsers always use HTTPS — this closes the protocol-downgrade attack window.

  • Missing Content-Security-Policy header

    Security

    Add a CSP to control which sources can run scripts — the strongest single defense against XSS.

  • Missing X-Content-Type-Options header

    Security

    Add X-Content-Type-Options: nosniff to stop MIME-sniffing attacks.

100

SEO

0 issue(s) found

90

Performance

301 ms

75

Security

HTTPS & header checks

100

Accessibility

0 issue(s) found

Score history

+3 overall since Jul 26, 2026

Overall
91
SEO
100
Security
75
Performance
90
Accessibility
100

Organization

Company details published in this site's own structured data.

WP Mail SMTP is the #1 WordPress SMTP plugin with over 4 million active installs. We help you fix WordPress email issues and make email deliverability easy.

Contact

Email, phone, and address published on this site's own pages.

Meta tags

Title
WP Mail SMTP Pro - #1 WordPress SMTP Plugin in the World
Description
WP Mail SMTP is the #1 WordPress SMTP plugin with over 4 million active installs. We help you fix WordPress email issues and make email deliverability easy.
Canonical
https://wpmailsmtp.com/
Language
en-US
Charset
UTF-8
Viewport
width=device-width, initial-scale=1
Robots meta
max-image-preview:large
Manifest

OpenGraph & Twitter Card

OpenGraph

og:title
WP Mail SMTP Pro - #1 WordPress SMTP Plugin in the World
og:description
WP Mail SMTP is the #1 WordPress SMTP plugin with over 4 million active installs. We help you fix WordPress email issues and make email deliverability easy.
og:type
website
og:url
https://wpmailsmtp.com/

Twitter Card

twitter:card
summary_large_image
twitter:title
WP Mail SMTP Pro - #1 WordPress SMTP Plugin in the World
twitter:description
WP Mail SMTP is the #1 WordPress SMTP plugin with over 4 million active installs. We help you fix WordPress email issues and make email deliverability easy.

Technologies

Detected frameworks, languages, and tools.

Hosting & CDN

Hosting provider
Cloudflare
CDN provider
Cloudflare
IP address
104.20.25.13
ASN
AS13335 (CLOUDFLARENET - Cloudflare, Inc., US)

DNS records

TypeValue
A
  • 104.20.25.13
  • 172.66.153.130
AAAA
  • 2606:4700:10::6814:190d
  • 2606:4700:10::ac42:9982
MX
  • alt1.aspmx.l.google.com
  • alt2.aspmx.l.google.com
  • aspmx.l.google.com
  • aspmx2.googlemail.com
  • aspmx3.googlemail.com
TXT
NS
  • ali.ns.cloudflare.com
  • hugh.ns.cloudflare.com
CAA
CNAME
IPv6 supportYes

TLS / SSL certificate

Version
TLS 1.3
Issuer
Google Trust Services
Subject
wpmailsmtp.com
Valid from
Jun 26, 2026
Valid to
Sep 24, 2026
Days until expiry
48
SAN domains
wpmailsmtp.com, *.wpmailsmtp.com

Security headers

  • Strict-Transport-SecurityMissing
  • Content-Security-PolicyMissing
  • X-Frame-OptionsEnabled
  • X-Content-Type-OptionsMissing
  • Referrer-PolicyMissing
  • Permissions-PolicyEnabled

Compression: gzip · 0 cookie(s) observed

Content & assets

Headings

H1 1 · H2 24 · H3 8

Links

44 internal · 8 external · 0 broken

Images

65 total · 0 missing alt

Scripts / Styles

58 scripts · 3 stylesheets

JS / CSS size

237 KB · 17.1 KB

Page size

446 KB

Robots.txt & Sitemap

robots.txt
Found
Disallow rules
5
sitemap.xml
Found
URLs in sitemap
-1

SEO issues

No SEO issues detected.

Accessibility issues

No accessibility issues detected.

Scan details

Requested URL
https://wpmailsmtp.com
Final URL
https://wpmailsmtp.com
HTTP status
200
HTTP version
HTTP/2
Response time
292 ms
HTML size
446 KB
Redirect chain
https://wpmailsmtp.com

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Frequently asked questions

What technology does wpmailsmtp.com use?
wpmailsmtp.com is built with WordPress, jQuery, Google Analytics, Cloudflare Analytics, Google Ads.
Is wpmailsmtp.com secure (HTTPS)?
Yes. wpmailsmtp.com uses TLS 1.3 with a certificate issued by Google Trust Services, valid until Sep 24, 2026.
Who hosts wpmailsmtp.com?
wpmailsmtp.com is hosted on Cloudflare, behind Cloudflare CDN.
What is wpmailsmtp.com's SEO score?
wpmailsmtp.com scored 100/100 for SEO in the latest analysis (excellent).
What is wpmailsmtp.com's overall website score?
wpmailsmtp.com has an overall SiteGraph score of 91/100, combining SEO, performance, security, and accessibility.
Has wpmailsmtp.com's score changed over time?
wpmailsmtp.com's overall score has improved by 3 points (from 88 to 91) since Jul 26, 2026.