onesignal.com
Customer Engagement Platform for Email, Push… - OneSignal
Last scanned Jul 29, 2026, 12:00 PM · 8 views
Overall score
Great
Summary
The world's leader for mobile push notifications, web push, SMS, email and in-app messaging. This website uses jQuery behind Cloudflare CDN. SEO is good (85/100) and accessibility is excellent (100/100). Security scores good (85/100) and performance excellent (90/100). Top issue: Meta description longer than 160 characters.
The world's leader for mobile push notifications, web push, SMS, email and in-app messaging. Trusted by 2 million+ businesses to send 12 billion+ messages per…
Top issues to fix
6 issues found · 1 high priority
Missing Content-Security-Policy header
SecurityAdd a CSP to control which sources can run scripts — the strongest single defense against XSS.
Missing X-Content-Type-Options header
SecurityAdd X-Content-Type-Options: nosniff to stop MIME-sniffing attacks.
Meta description longer than 160 characters
SEOTrim the meta description to under 160 characters to avoid truncation in search results.
robots.txt not found
SEOPublish /robots.txt with a Sitemap: directive to guide crawlers.
sitemap.xml not found
SEOPublish an XML sitemap and reference it from robots.txt to speed up page discovery.
20 broken links on the page
SEOFix or remove broken links — they waste crawl budget and erode user trust.
SEO
3 issue(s) found
Performance
100 ms
Security
HTTPS & header checks
Accessibility
0 issue(s) found
Score history
0 overall since Jul 15, 2026
- Overall
- 89
- SEO
- 85
- Security
- 85
- Performance
- 90
- Accessibility
- 100
Organization
Company details published in this site's own structured data.
Meta tags
- Title
- Customer Engagement Platform for Email, Push… - OneSignal
- Description
- The world's leader for mobile push notifications, web push, SMS, email and in-app messaging. Trusted by 2 million+ businesses to send 12 billion+ messages per…
- Canonical
- https://onesignal.com/
- Language
- en
- Charset
- utf-8
- Viewport
- width=device-width, initial-scale=1, shrink-to-fit=no
- Robots meta
- all
- Manifest
- https://onesignal.com/site.webmanifest
Technologies
Detected frameworks, languages, and tools.
Hosting & CDN
- Hosting provider
- —
- CDN provider
- Cloudflare
- IP address
- —
- ASN
- —
DNS records
| Type | Value |
|---|---|
| A | — |
| AAAA | — |
| MX | — |
| TXT | — |
| NS | — |
| CAA | — |
| CNAME | — |
| IPv6 support | No |
TLS / SSL certificate
- Version
- TLS 1.3
- Issuer
- Google Trust Services
- Subject
- onesignal.com
- Valid from
- Jun 13, 2026
- Valid to
- Sep 11, 2026
- Days until expiry
- 44
- SAN domains
- onesignal.com
Security headers
- Strict-Transport-SecurityEnabled
- Content-Security-PolicyMissing
- X-Frame-OptionsEnabled
- X-Content-Type-OptionsMissing
- Referrer-PolicyEnabled
- Permissions-PolicyMissing
Compression: gzip · 1 cookie(s) observed
Content & assets
Headings
H1 1 · H2 10 · H3 5
Links
73 internal · 16 external · 20 broken
Images
5 total · 0 missing alt
Scripts / Styles
27 scripts · 4 stylesheets
JS / CSS size
3.9 KB · 0 B
Page size
861 KB
Robots.txt & Sitemap
- robots.txt
- Not found
- Disallow rules
- 0
- sitemap.xml
- Not found
- URLs in sitemap
- 0
SEO issues
- Meta description longer than 160 characters
- robots.txt not found
- sitemap.xml not found
Accessibility issues
No accessibility issues detected.
Scan details
- Requested URL
- https://onesignal.com
- Final URL
- https://onesignal.com
- HTTP status
- 200
- HTTP version
- HTTP/2
- Response time
- 83 ms
- HTML size
- 861 KB
- Redirect chain
- https://onesignal.com
See something wrong on this report? Request a correction
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Frequently asked questions
- What technology does onesignal.com use?
- onesignal.com is built with jQuery.
- Is onesignal.com secure (HTTPS)?
- Yes. onesignal.com uses TLS 1.3 with a certificate issued by Google Trust Services, valid until Sep 11, 2026.
- Who hosts onesignal.com?
- Hosting provider information for onesignal.com is not available yet.
- What is onesignal.com's SEO score?
- onesignal.com scored 85/100 for SEO in the latest analysis (great).
- What is onesignal.com's overall website score?
- onesignal.com has an overall SiteGraph score of 89/100, combining SEO, performance, security, and accessibility.
- Has onesignal.com's score changed over time?
- onesignal.com's overall score has stayed steady at 89/100 since Jul 15, 2026.
OpenGraph & Twitter Card
OpenGraph
Twitter Card