Benchmark: CORS Test - MeasureThat.net

Script Preparation code:

// For accuracy declare the regex in root scope
// assume this tester doesnt rerun the setup on each test case
const DOMAIN_TO_LOCALE = Object.freeze({
    com: 'en-us',
    dk: 'da',
    de: 'de',
    fr: 'fr-fr',
    no: 'nb',
    pt: 'pt',
    se: 'sv',
    'com.br': 'pt-br',
    'com.es': 'es',
});
const FOO_VALID_TLDS = Object.keys(DOMAIN_TO_LOCALE).join('|');
const FOO_DOMAIN_REGEX = new RegExp(
    `^https://(?:[\\w-]+\\.)*foo\\.(?:${FOO_VALID_TLDS})\\.?(?::[\\d]{1,5})?$`
);

function checkRegex(url) {
    return FOO_DOMAIN_REGEX.test(url)
}

function checkProcedural(url) {
    const {
        protocol,
        hostname
    } = new URL(url);
    const [subdomain, tld] = hostname.split('foo.');
  
    if (typeof tld === 'undefined') return;

    const isSecure = protocol.startsWith('https');
    const isValidTld = tld in DOMAIN_TO_LOCALE;

    return isSecure && isValidTld;
}

window.validCases = [
    'https://foo.com',
    'https://bar.foo.com',
    'https://foo.bar.foo.com',
    'https://BAR.foo.com',
    'https://-_47.foo.com',
    'https://foo.foo.com',
    'https://foo.com:1',
    'https://foo.com:65535',
    'https://foo.com.',
    'https://foo.com.:47',
    'https://foo.fr',
    'https://develop.foo.fr',
    'https://develop.nested.foo.fr',
    'https://develop.nested.foo.com.es',
];

window.invalidCases = [
    'https://foo.com.fake.com',
    'https://foo.com.org',
    'https://foofoo.com',
    'file://foo.com',
    'http://foo.com',
    'https://.foo.com',
];

Tests:

Regex: Valid Cases
validCases.every(url => checkRegex(url));
Regex: Invalid Cases
invalidCases.every(url => !checkRegex(url));
Procedural: Valid Cases
validCases.every(url => checkProcedural(url));
Procedural: Invalid Cases
invalidCases.every(url => !checkProcedural(url));

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Regex: Valid Cases
Regex: Invalid Cases
Procedural: Valid Cases
Procedural: Invalid Cases

Fastest: N/A

Slowest: N/A

ⓘ Get performance results from real users on your website with Request Metrics.

Website Performance Monitoring by Request Metrics

Latest run results:

Run details: (Test run date: 2 months ago)

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/121.0.0.0 Safari/537.36

Browser/OS: Chrome 121 on Mac OS X 10.15.7

View result in a separate tab

Test name	Executions per second
Regex: Valid Cases	1063380.0 Ops/sec
Regex: Invalid Cases	2530044.0 Ops/sec
Procedural: Valid Cases	447856.0 Ops/sec
Procedural: Invalid Cases	442045.7 Ops/sec

CORS Test (version: 2)

Comparing performance of: Regex: Valid Cases vs Regex: Invalid Cases vs Procedural: Valid Cases vs Procedural: Invalid Cases

Created: 3 years ago by: Registered User

Jump to the latest result

Regex: Valid Cases

Regex: Invalid Cases

Procedural: Valid Cases

Procedural: Invalid Cases

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A