⚡ Networking in Spain

Networking technologies are protocols, standards, and mechanisms that enable the secure and reliable delivery of web content, manage data exchange between clients and servers, enforce security policies, and optimize connection performance.

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.

Statistics based on 86K+ analyzed websites. About this data

⭐ 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 84.3%, followed by HTTP 2+ with 74.3% and Cookies with 34.8%.

TLS 84.3%
HTTP 2+ 74.3%
Cookies 34.8%
HSTS 19.7%
♯ ETag 14.8%
CSP 10.3%
↪ Redirect 8.6%
QUIC 7.8%
CORS 3.2%
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.	84.3%
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.	74.3%
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 A web security mechanism that ensures a user's browser always connects to a website using HTTPS, preventing insecure HTTP access.	19.7%
5	♯ ETag Fremont, California, United States An identifier for a specific version of a resource that is used for cache validation.	14.8%
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.	10.3%
7	↪ Redirect Cross-domain redirection that sends visitors to a different domain.	8.6%
8	QUIC Fremont, California, United States A transport layer network protocol built on UDP that provides encrypted, low-latency data transfer, underpins HTTP 2+, and was originally developed by 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.	3.2%
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

🗃️ About This Data

We evaluate the popularity of technologies based on the number of websites where we detect their usage.
Technologies without a detectable web footprint, and those we do not track, are not reflected in the calculated market share.
This report is based on the analysis of 86,545 websites from Spain.
We currently track the presence of 10 networking technologies across the web.
Of these, 10 were detected on websites from Spain.
Statistics were last calculated on May 5, 2026.
For more details, see our methodology and disclaimer.