mail-tester.com
Newsletters spam test by mail-tester.com
Last scanned Jul 26, 2026, 5:18 AM
Overall score
Excellent
Summary
Check your newsletter's spam score and quality.This tool's free, and pretty. This website uses Google Analytics hosted on Cloudflare behind Cloudflare CDN. SEO is excellent (90/100) and accessibility is excellent (100/100). Security scores fair (70/100) and performance excellent (100/100). Top issue: No structured data (JSON-LD) found.
Check your newsletter's spam score and quality.This tool's free, and pretty
- United States
- Hosted on Cloudflare
Products & pricing
Product and pricing information published in this site's own structured data.
Integrate mail-tester results in your own application
$10 USD
Top issues to fix
5 issues found · 2 high priority
Missing Strict-Transport-Security header
SecurityAdd HSTS so browsers always use HTTPS — this closes the protocol-downgrade attack window.
Missing Content-Security-Policy header
SecurityAdd a CSP to control which sources can run scripts — the strongest single defense against XSS.
Missing X-Frame-Options header
SecurityAdd X-Frame-Options (or a CSP frame-ancestors rule) to prevent clickjacking via hidden iframes.
2 cookies without Secure/HttpOnly flags
SecuritySet Secure and HttpOnly on session cookies so they can't leak over HTTP or be read by injected scripts.
No structured data (JSON-LD) found
SEOAdd JSON-LD (Organization, Article, Product…) to become eligible for rich results.
SEO
1 issue(s) found
Performance
593 ms
Security
HTTPS & header checks
Accessibility
0 issue(s) found
Organization
Company details published in this site's own structured data.
Check your newsletter's spam score and quality.This tool's free, and pretty
Contact
Email, phone, and address published on this site's own pages.
Source: https://mail-tester.com/contact
Meta tags
- Title
- Newsletters spam test by mail-tester.com
- Description
- Check your newsletter's spam score and quality.This tool's free, and pretty
- Canonical
- https://mail-tester.com/
- Language
- en
- Charset
- utf-8
- Viewport
- width=device-width
- Robots meta
- Manifest
Technologies
Detected frameworks, languages, and tools.
Hosting & CDN
- Hosting provider
- Cloudflare
- CDN provider
- Cloudflare
- IP address
- 104.26.0.117
- ASN
- AS13335 (CLOUDFLARENET - Cloudflare, Inc., US)
DNS records
| Type | Value |
|---|---|
| A |
|
| AAAA |
|
| MX |
|
| TXT |
|
| NS |
|
| CAA | — |
| CNAME | — |
| IPv6 support | Yes |
TLS / SSL certificate
- Version
- TLS 1.3
- Issuer
- Google Trust Services
- Subject
- mail-tester.com
- Valid from
- Jun 8, 2026
- Valid to
- Sep 6, 2026
- Days until expiry
- 41
- SAN domains
- mail-tester.com, *.mail-tester.com
Security headers
- Strict-Transport-SecurityMissing
- Content-Security-PolicyMissing
- X-Frame-OptionsMissing
- X-Content-Type-OptionsEnabled
- Referrer-PolicyMissing
- Permissions-PolicyMissing
Compression: gzip · 2 cookie(s) observed
Content & assets
Headings
H1 1 · H2 0 · H3 0
Links
39 internal · 10 external · 0 broken
Images
2 total · 0 missing alt
Scripts / Styles
11 scripts · 2 stylesheets
JS / CSS size
76.8 KB · 0 B
Page size
14.5 KB
Robots.txt & Sitemap
- robots.txt
- Found
- Disallow rules
- 2
- sitemap.xml
- Found
- URLs in sitemap
- 375
SEO issues
- No structured data (JSON-LD) found
Accessibility issues
No accessibility issues detected.
Careers
This company has an active careers page, but individual openings weren't reliably parsed from it — visit the page above for current listings.
Scan details
- Requested URL
- https://mail-tester.com
- Final URL
- https://mail-tester.com
- HTTP status
- 200
- HTTP version
- HTTP/2
- Response time
- 593 ms
- HTML size
- 14.5 KB
- Redirect chain
- https://mail-tester.com
See something wrong on this report? Request a correction
Related websites
Same technology stack
parchment.com
Secure & Reliable End-To-End Credentials Support | Parchment
gentlemansgazette.com
Gentleman's Gazette | Website & Shop For Classic Gentlemen
pq.com
PQ Corp. – Global Silicates and Silicas Provider
quago.io
Home - Quago
lucerna-chem.ch
Lucerna-Chem AG
worldhistory.org
World History Encyclopedia
Same hosting provider
gentlemansgazette.com
Gentleman's Gazette | Website & Shop For Classic Gentlemen
gearset.com
Gearset | The complete Salesforce DevOps solution
hackertarget.com
28 Online Vulnerability Scanners & Network Tools
righttoinformation.wiki
File any RTI in India · RTI Wiki
geaerospace.com
GE Aerospace - Home | GE Aerospace
joingy.com
Joingy: Random Video Chat Roulette • Stranger Cam Chat
Frequently asked questions
- What technology does mail-tester.com use?
- mail-tester.com is built with jQuery, Google Analytics.
- Is mail-tester.com secure (HTTPS)?
- Yes. mail-tester.com uses TLS 1.3 with a certificate issued by Google Trust Services, valid until Sep 6, 2026.
- Who hosts mail-tester.com?
- mail-tester.com is hosted on Cloudflare, behind Cloudflare CDN.
- What is mail-tester.com's SEO score?
- mail-tester.com scored 90/100 for SEO in the latest analysis (excellent).
- What is mail-tester.com's overall website score?
- mail-tester.com has an overall SiteGraph score of 90/100, combining SEO, performance, security, and accessibility.
- What products does mail-tester.com offer?
- mail-tester.com offers Integrate mail-tester results in your own application.
- Is mail-tester.com hiring?
- mail-tester.com has a careers page; check it directly for current openings.
OpenGraph & Twitter Card
OpenGraph
Twitter Card