openweathermap.org
OpenWeather APIs for Weather, Energy, and Environment
Last scanned Jul 21, 2026, 11:40 AM · 2 views
Overall score
Great
Top issues to fix
8 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-Content-Type-Options header
SecurityAdd X-Content-Type-Options: nosniff to stop MIME-sniffing attacks.
Missing X-Frame-Options header
SecurityAdd X-Frame-Options (or a CSP frame-ancestors rule) to prevent clickjacking via hidden iframes.
Meta description longer than 160 characters
SEOTrim the meta description to under 160 characters to avoid truncation in search results.
Missing canonical link
SEOAdd <link rel="canonical"> so search engines know which URL variant to index.
+2 more issues — details in the sections below.
Summary
OpenWeather provides global APIs for weather, environmental, and energy data, including current conditions, forecasts, historical weather, air pollution, solar radiation, road risk, and solar energy insights. This website uses Next.js hosted on HETZNER-AS - Hetzner Online GmbH, DE. SEO is good (75/100) and accessibility is excellent (100/100). Security scores fair (65/100) and performance good (85/100). Top issue: Meta description longer than 160 characters.
SEO
4 issue(s) found
Performance
281 ms
Security
HTTPS & header checks
Accessibility
0 issue(s) found
Organization
Company details published in this site's own structured data.
Contact
Email, phone, and address published on this site's own pages.
Meta tags
- Title
- OpenWeather APIs for Weather, Energy, and Environment
- Description
- OpenWeather provides global APIs for weather, environmental, and energy data, including current conditions, forecasts, historical weather, air pollution, solar radiation, road risk, and solar energy insights. Built for developers and businesses, our platform offers reliable data access, broad product coverage, and flexible self-service tools to support apps, analytics, operations, and decision-making.
- Canonical
- Language
- en
- Charset
- utf-8
- Viewport
- width=device-width, initial-scale=1
- Robots meta
- Manifest
Technologies
Detected frameworks, languages, and tools.
Hosting & CDN
- Hosting provider
- HETZNER-AS - Hetzner Online GmbH, DE
- CDN provider
- —
- IP address
- 148.251.136.139
- ASN
- AS24940 (HETZNER-AS - Hetzner Online GmbH, DE)
DNS records
| Type | Value |
|---|---|
| A |
|
| AAAA | — |
| MX |
|
| TXT |
|
| NS |
|
| CAA | — |
| CNAME | — |
| IPv6 support | No |
TLS / SSL certificate
- Version
- TLS 1.3
- Issuer
- Sectigo Limited
- Subject
- *.openweathermap.org
- Valid from
- Mar 19, 2026
- Valid to
- Oct 3, 2026
- Days until expiry
- 74
- SAN domains
- *.openweathermap.org, openweathermap.org
Security headers
- Strict-Transport-SecurityMissing
- Content-Security-PolicyMissing
- X-Frame-OptionsMissing
- X-Content-Type-OptionsMissing
- Referrer-PolicyMissing
- Permissions-PolicyMissing
Compression: gzip · 0 cookie(s) observed
Content & assets
Headings
H1 11 · H2 1 · H3 0
Links
18 internal · 20 external · 0 broken
Images
40 total · 0 missing alt
Scripts / Styles
33 scripts · 2 stylesheets
JS / CSS size
1.1 MB · 79.1 KB
Page size
104 KB
Robots.txt & Sitemap
- robots.txt
- Found
- Disallow rules
- 0
- sitemap.xml
- Found
- URLs in sitemap
- 78
SEO issues
- Meta description longer than 160 characters
- Missing canonical link
- Multiple H1 headings found
- No structured data (JSON-LD) found
Accessibility issues
No accessibility issues detected.
Scan details
- Requested URL
- https://openweathermap.org
- Final URL
- https://openweathermap.org
- HTTP status
- 200
- HTTP version
- HTTP/1.1
- Response time
- 279 ms
- HTML size
- 104 KB
- Redirect chain
- https://openweathermap.org
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Frequently asked questions
- What technology does openweathermap.org use?
- openweathermap.org is built with Next.js, Google Analytics, Nginx.
- Is openweathermap.org secure (HTTPS)?
- Yes. openweathermap.org uses TLS 1.3 with a certificate issued by Sectigo Limited, valid until Oct 3, 2026.
- Who hosts openweathermap.org?
- openweathermap.org is hosted on HETZNER-AS - Hetzner Online GmbH, DE.
- What is openweathermap.org's SEO score?
- openweathermap.org scored 75/100 for SEO in the latest analysis (fair).
- What is openweathermap.org's overall website score?
- openweathermap.org has an overall SiteGraph score of 80/100, combining SEO, performance, security, and accessibility.
OpenGraph & Twitter Card
OpenGraph
Twitter Card