Historical 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 September 2025.

	2025 1 Sep	2025 1 Oct	2025 1 Nov	2025 1 Dec	2026 1 Jan	2026 1 Feb	2026 1 Mar	2026 1 Apr	2026 1 May	2026 1 Jun	2026 1 Jul	2026 1 Aug	2026 1 Sep	2026 18 Sep
None	0.9%	0.9%	1.0%	1.2%	1.9%	1.8%	0.7%	0.4%	0.3%	0.2%	0.2%	0.1%	0.1%	0.1%
CSS	96.0%	96.1%	95.5%	95.3%	93.8%	94.1%	96.6%	97.5%	98.0%	98.4%	98.7%	99.0%	99.2%	99.3%
Compression	89.8%	90.0%	89.6%	89.7%	88.8%	89.0%	90.9%	91.6%	92.0%	92.3%	92.6%	92.9%	93.1%	93.2%
Default protocol https	88.5%	88.8%	88.7%	88.5%	87.6%	87.5%	89.2%	89.5%	89.8%	90.0%	90.1%	90.1%	90.0%	90.0%
Cookies	40.3%	40.4%	40.2%	40.2%	40.5%	40.6%	41.5%	41.7%	41.3%	41.5%	41.8%	41.6%	41.9%	42.1%
HTTP/3	35.6%	35.7%	35.9%	36.4%	36.6%	37.2%	38.2%	38.7%	39.2%	39.5%	39.8%	40.0%	40.3%	40.7%
Default subdomain www	38.8%	38.7%	39.3%	39.1%	38.3%	38.5%	39.4%	39.0%	39.1%	39.0%	38.8%	38.3%	37.8%	37.3%
HTTP Strict Transport Security	31.5%	31.8%	31.8%	31.7%	31.4%	31.8%	32.4%	32.8%	33.3%	33.8%	34.3%	34.7%	35.2%	35.5%
HTTP/2	33.2%	33.2%	33.3%	33.6%	33.8%	34.1%	34.4%	34.7%	35.0%	35.2%	35.2%	34.7%	34.6%	34.8%
IPv6	27.1%	27.3%	27.6%	28.0%	28.4%	29.0%	29.4%	29.7%	30.1%	30.4%	30.7%	31.1%	31.5%	31.8%
ETag	26.1%	26.3%	26.3%	26.4%	26.4%	27.0%	27.7%	28.1%	28.4%	28.7%	29.1%	29.5%	29.8%	30.0%
QUIC	8.8%	8.8%	8.7%	8.6%	8.3%	8.4%	8.9%	8.9%	8.9%	8.8%	8.8%	8.4%	6.5%	5.3%
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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