Statizoid Temporal Drift of Obsolete HTML Tags in Live Websites

🖧 Technology & Internet

Temporal Drift of Obsolete HTML Tags in Live Websites

Percentage of live websites still using obsolete HTML tags, tracked over time.

Observations
12
Tracking since
Last updated

Percentage of live websites using <marquee>

Percentage of surveyed high-traffic websites that contain the obsolete HTML tag <marquee>.

2 observations · measured in %

0.0%
Percentage of live websites using <marquee>
02 Oct 2026 07:00
Percentage of live websites using <marquee> (%) — summary, last 30 days.
0.0%0.2%0.4%0.6%0.8%1.0%06:5706:5807:00Percentage of live websites using <marquee>: 0.0% — 02 Oct 2026 06:57Percentage of live websites using <marquee>: 0.0% — 02 Oct 2026 07:00
Percentage of live websites using <marquee> (%) — line, last 30 days.
0.0%0.2%0.4%0.6%0.8%1.0%06:5706:5807:00Percentage of live websites using <marquee>: 0.0% — 02 Oct 2026 06:57Percentage of live websites using <marquee>: 0.0% — 02 Oct 2026 07:00
Percentage of live websites using <marquee> (%) — area, last 30 days.
WhenPercentage of live websites using <marquee>
0.0%
0.0%
Percentage of live websites using <marquee> (%) — table, last 30 days.

Percentage of live websites using <nobr>

Percentage of surveyed high-traffic websites that contain the obsolete HTML tag <nobr>.

2 observations · measured in %

0.0%
Percentage of live websites using <nobr>
02 Oct 2026 07:00
Percentage of live websites using <nobr> (%) — summary, last 30 days.
0.0%0.2%0.4%0.6%0.8%1.0%06:5706:5807:00Percentage of live websites using <nobr>: 0.0% — 02 Oct 2026 06:57Percentage of live websites using <nobr>: 0.0% — 02 Oct 2026 07:00
Percentage of live websites using <nobr> (%) — line, last 30 days.
0.0%0.2%0.4%0.6%0.8%1.0%06:5706:5807:00Percentage of live websites using <nobr>: 0.0% — 02 Oct 2026 06:57Percentage of live websites using <nobr>: 0.0% — 02 Oct 2026 07:00
Percentage of live websites using <nobr> (%) — area, last 30 days.
WhenPercentage of live websites using <nobr>
0.0%
0.0%
Percentage of live websites using <nobr> (%) — table, last 30 days.

Percentage of live websites using <center>

Percentage of surveyed high-traffic websites that contain the obsolete HTML tag <center>.

2 observations · measured in %

20.0%
Percentage of live websites using <center>
▬ 0.0% vs previous
02 Oct 2026 07:00
Percentage of live websites using <center> (%) — summary, last 30 days.
0.0%5.0%10.0%15.0%20.0%06:5706:5807:00Percentage of live websites using <center>: 20.0% — 02 Oct 2026 06:57Percentage of live websites using <center>: 20.0% — 02 Oct 2026 07:00
Percentage of live websites using <center> (%) — line, last 30 days.
0.0%5.0%10.0%15.0%20.0%06:5706:5807:00Percentage of live websites using <center>: 20.0% — 02 Oct 2026 06:57Percentage of live websites using <center>: 20.0% — 02 Oct 2026 07:00
Percentage of live websites using <center> (%) — area, last 30 days.
WhenPercentage of live websites using <center>
20.0%
20.0%
Percentage of live websites using <center> (%) — table, last 30 days.

Percentage of live websites using <font>

Percentage of surveyed high-traffic websites that contain the obsolete HTML tag <font>.

2 observations · measured in %

0.0%
Percentage of live websites using <font>
02 Oct 2026 07:00
Percentage of live websites using <font> (%) — summary, last 30 days.
0.0%0.2%0.4%0.6%0.8%1.0%06:5706:5807:00Percentage of live websites using <font>: 0.0% — 02 Oct 2026 06:57Percentage of live websites using <font>: 0.0% — 02 Oct 2026 07:00
Percentage of live websites using <font> (%) — line, last 30 days.
0.0%0.2%0.4%0.6%0.8%1.0%06:5706:5807:00Percentage of live websites using <font>: 0.0% — 02 Oct 2026 06:57Percentage of live websites using <font>: 0.0% — 02 Oct 2026 07:00
Percentage of live websites using <font> (%) — area, last 30 days.
WhenPercentage of live websites using <font>
0.0%
0.0%
Percentage of live websites using <font> (%) — table, last 30 days.

Total count of obsolete HTML tags found across surveyed websites

Sum of distinct obsolete HTML tags present on each surveyed website.

2 observations · measured in count

1 count
Total count of obsolete HTML tags found across surveyed websites
▬ 0.0% vs previous
02 Oct 2026 07:00
Total count of obsolete HTML tags found across surveyed websites (count) — summary, last 30 days.
00.20.40.60.8106:5706:5807:00Total count of obsolete HTML tags found across surveyed websites: 1 count — 02 Oct 2026 06:57Total count of obsolete HTML tags found across surveyed websites: 1 count — 02 Oct 2026 07:00
Total count of obsolete HTML tags found across surveyed websites (count) — line, last 30 days.
00.20.40.60.8106:5706:5807:00Total count of obsolete HTML tags found across surveyed websites: 1 count — 02 Oct 2026 06:57Total count of obsolete HTML tags found across surveyed websites: 1 count — 02 Oct 2026 07:00
Total count of obsolete HTML tags found across surveyed websites (count) — area, last 30 days.
WhenTotal count of obsolete HTML tags found across surveyed websites
1 count
1 count
Total count of obsolete HTML tags found across surveyed websites (count) — table, last 30 days.

About this data

This page measures the proportion of surveyed websites that contain specific obsolete HTML tags, as well as the total number of such tags found across all sites. The data are gathered from automated crawls of live web pages, taken at regular intervals to capture a snapshot of current usage. Tracking these figures reveals how quickly the web is moving away from outdated markup, serving as a proxy for technical debt and the pace of code modernisation.

Sources

Every figure on this page was read from these pages.

Why this isn't published anywhere else

No live dashboard, recurring report, or public dataset was found that specifically tracks the temporal drift of obsolete HTML tags across live websites; the located resources are blog posts, tools, or general surveys that do not constitute an ongoing tracker.

Uniqueness score 1.00 — assessed against live web search results when this subject was created.