mediaelement-core-frequency.sql

# HTTP Archive query for how often the mediaelement-core script is on a WordPress page.
#
# WPP Research, Copyright 2024 Google LLC
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     https://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

CREATE TEMP FUNCTION HAS_SCRIPT(handle STRING, custom_metrics STRING) RETURNS BOOL LANGUAGE js AS
# language=javascript
'''

/**
 * Get whether a script is present.
 *
 * @param {string} handle
 * @param {object} data
 * @param {object} data.cms
 * @param {object} data.cms.wordpress
 * @param {Array<{handle: string}>} data.cms.wordpress.scripts
 * @return {boolean}
 */
function hasScript(handle, data) {
  for (const script of data.cms.wordpress.scripts) {
    if (script.handle === handle) {
      return true;
    }
  }
  return false;
}

try {
  const data = JSON.parse(custom_metrics);
  return hasScript(handle, data);
} catch (e) {}
return false;

''';

WITH script_presence AS (
  SELECT
    HAS_SCRIPT("mediaelement-core", custom_metrics) AS has_script,
  FROM
    `httparchive.all.pages`,
    UNNEST(technologies) AS technology
  WHERE
    date = CAST("2024-03-01" AS DATE) AND
    client = "mobile" AND
    technology.technology = "WordPress"
)

SELECT
  has_script,
  COUNT(has_script) AS count,
FROM
  script_presence
GROUP BY
  has_script

Results:

has_script	count
false	10453165
true	512069

So the MediaElement.js script is present on 4.7% of WordPress pages. Note this will not identify ME.js on pages that that have optimization plugins which concatenate scripts.