Historical quarterly trends in the usage statistics of site elements for websites

This report shows the historical trends in the usage of the top site elements since April 2023.

	2023 1 Apr	2023 1 Jul	2023 1 Oct	2024 1 Jan	2024 1 Apr	2024 1 Jul	2024 1 Oct	2025 1 Jan	2025 1 Apr	2025 1 Jul	2025 1 Oct	2026 1 Jan	2026 1 Apr	2026 28 May
None	0.9%	0.9%	0.9%	0.8%	1.1%	1.0%	1.5%	0.6%	1.3%	1.0%	0.9%	1.9%	0.4%	0.2%
CSS	97.1%	97.1%	97.3%	97.0%	96.9%	96.3%	95.5%	96.9%	95.3%	95.7%	96.1%	93.8%	97.5%	98.3%
Compression	88.3%	88.4%	88.7%	88.6%	88.7%	88.8%	88.4%	89.8%	88.6%	89.2%	90.0%	88.8%	91.6%	92.2%
Default protocol https	82.3%	83.2%	84.2%	84.9%	85.4%	85.9%	85.2%	87.7%	87.3%	88.1%	88.8%	87.6%	89.5%	90.0%
Cookies	41.4%	42.2%	42.4%	43.0%	42.1%	41.2%	41.4%	41.8%	41.1%	40.8%	40.4%	40.5%	41.7%	41.5%
HTTP/3	25.5%	26.1%	26.8%	27.8%	29.2%	30.3%	27.6%	33.6%	34.3%	35.1%	35.7%	36.6%	38.7%	39.5%
Default subdomain www	41.0%	40.6%	40.3%	40.3%	39.8%	39.7%	38.8%	38.7%	38.8%	38.8%	38.7%	38.3%	39.0%	39.0%
HTTP/2	39.3%	36.5%	35.6%	35.5%	35.5%	35.3%	34.9%	34.5%	33.8%	33.2%	33.2%	33.8%	34.7%	35.2%
HTTP Strict Transport Security	25.5%	26.0%	26.6%	27.3%	27.2%	27.5%	28.2%	29.7%	30.3%	31.1%	31.8%	31.4%	32.8%	33.7%
IPv6	21.1%	21.6%	22.1%	22.6%	24.6%	25.1%	25.4%	26.0%	26.4%	26.8%	27.3%	28.4%	29.7%	30.3%
ETag	17.5%	20.9%	21.2%	21.9%	23.3%	23.4%	23.3%	24.1%	24.5%	25.6%	26.3%	26.4%	28.1%	28.7%
QUIC	8.9%	7.4%	7.5%	7.7%	7.8%	8.1%	8.1%	8.5%	8.3%	8.6%	8.8%	8.3%	8.9%	8.8%
Frameset	0.2%	0.2%	0.2%	0.2%	0.2%	0.2%	0.2%	0.2%	0.2%	0.2%	0.2%	0.2%	0.2%	0.2%

The diagram shows only site elements with more than 1% usage.

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