⚡ Networking in Spain

Networking technologies are protocols, standards, and mechanisms that provide secure and reliable delivery of web content, data exchange management, security policies, and performance optimization between servers and clients.

Spain is a Southern European country with a population of around 48 million people.

According to our data, networking technologies are used on 93.9% of websites from Spain.

⭐ Most Popular in 2026

The following chart shows the top networking technologies in Spain in 2026, based on market share.

The most popular is TLS with an impressive share of 84.2%, followed by HTTP 2+ with 74.1% and Cookies with 34.8%.

TLS 84.2%
HTTP 2+ 74.1%
Cookies 34.8%
HSTS 19.6%
♯ ETag 14.7%
CSP 10.2%
↪ Redirect 8.7%
QUIC 7.8%
CORS 3.1%
FTP 0.004%

✨ Best Networking Technologies

Below is a more detailed list of 10 networking technologies used on sites from Spain, ranked by their market share.

Rank	Name	Market share
1	TLS Fremont, California, United States A cryptographic protocol that provides end-to-end encryption of data transmitted over the Internet, ensuring confidentiality, integrity, and authentication between communicating systems.	84.2%
2	HTTP 2+ Fremont, California, United States An application-layer protocol used to transfer resources such as HTML documents, images, and other web content, forming the foundation of data communication in web browsers.	74.1%
3	Cookies Fremont, California, United States Small pieces of data that a website sends to a visitor's web browser when they visit.	34.8%
4	HSTS Fremont, California, United States The HTTP Strict Transport Security standard ensures that a user's browser always connects to a website using HTTPS.	19.6%
5	♯ ETag Fremont, California, United States An identifier for a specific version of a resource that is used for cache validation.	14.7%
6	CSP Cambridge, Massachusetts, United States The Content-Security-Policy HTTP response header and meta tag are used to control what resources a given page can load.	10.2%
7	↪ Redirect Cross-domain redirection that sends visitors to a different domain.	8.7%
8	QUIC Fremont, California, United States A multiplexed transport layer network protocol built on top of UDP, originally developed at Google.	7.8%
9	CORS Cambridge, Massachusetts, United States An HTTP header-based mechanism used to safely bypass same-origin policy and allow requests to other domains.	3.1%
10	FTP Fremont, California, United States A standard network protocol for transferring files between a server and a client.	0.004%

👉 See Also

🌎 Networking in other countries

Data is based on the analysis of 84,980 websites from Spain.
Statistics were last calculated on March 21, 2026.
For details, see our methodology and disclaimer.