GO VS PHP VS Python Comparison 2025

Here’s the clear comparison first, then I can also make it into a flowchart like before.


1. Performance

  • Go 🏎 — Compiled, very fast, great for concurrency.
  • PHP 🚲 — Interpreted but optimized for web, fine for most CMS-driven sites.
  • Python 🚗 — Interpreted, slower than Go, but often “fast enough” with proper scaling; strong library support.

2. Concurrency

  • Go — Built-in concurrency primitives (goroutines, channels) → high scalability.
  • PHP — No built-in concurrency model (relies on web server).
  • Python — Async via asyncio, threading, multiprocessing — good, but less natural than Go.

3. Ecosystem

  • Go — APIs, DevOps, microservices, distributed systems.
  • PHP — Websites, CMS (WordPress, Drupal, Laravel).
  • Python — AI/ML, data science, automation, scripting, web (Django, Flask, FastAPI).

4. Learning Curve

  • Go — Simple syntax but strict typing, great for systems dev.
  • PHP — Easy for web beginners.
  • Python — Very beginner-friendly, clean syntax, huge community.

5. Hosting & Deployment

  • Go — Compiled binary, easy containerization.
  • PHP — Extremely easy to host anywhere.
  • Python — Requires virtualenv, pip, or containers; hosting is common but not as universal as PHP.

6. Best Use Cases

  • Go → High-performance APIs, microservices, concurrent systems.
  • PHP → Web CMS, e-commerce, quick site builds.
  • Python → AI, data analysis, scripting, backend APIs (FastAPI), automation.

💡 Rule of Thumb

  • Want maximum concurrency & speed? → Go
  • Want fast CMS-driven web development? → PHP
  • Want data science, AI, or general-purpose scripting? → Python

Complete Guide to HTTP Status & Error Codes

When browsing the web or building websites, you may encounter numbers like 404, 500, or 301. These numbers are HTTP status codes — short messages from a web server that tell your browser whether a request succeeded, failed, or needs more action.

This guide covers all major HTTP status codes, including informational, success, redirection, client errors, and server errors.


1. What Are HTTP Status Codes?

HTTP status codes are standardized responses from a web server when a browser or client requests a resource.
Each status code is three digits, and the first digit defines the response category:

  • 1xx – Informational responses
  • 2xx – Success responses
  • 3xx – Redirection messages
  • 4xx – Client error messages
  • 5xx – Server error messages

2. Complete HTTP Status Code Table

CodeCategoryMeaningExample Use Case
100InformationalContinueRequest received, client should continue
101InformationalSwitching ProtocolsServer is switching protocols
102InformationalProcessingWebDAV request still in process
103InformationalEarly HintsPreloading resources before final response
200SuccessOKRequest succeeded (normal webpage load)
201SuccessCreatedResource successfully created
202SuccessAcceptedRequest accepted but processing later
203SuccessNon-Authoritative InformationMetadata from another source
204SuccessNo ContentRequest succeeded, no content returned
205SuccessReset ContentClient should reset form input
206SuccessPartial ContentPartial resource returned (range request)
300RedirectionMultiple ChoicesMultiple options for resource
301RedirectionMoved PermanentlyResource moved to a new URL
302RedirectionFoundTemporary redirect
303RedirectionSee OtherRedirect to a different resource
304RedirectionNot ModifiedCached version is still valid
307RedirectionTemporary RedirectSame method redirect
308RedirectionPermanent RedirectMethod preserved permanent redirect
400Client ErrorBad RequestInvalid syntax in request
401Client ErrorUnauthorizedAuthentication required
402Client ErrorPayment RequiredReserved for future use
403Client ErrorForbiddenAccess denied
404Client ErrorNot FoundResource not found
405Client ErrorMethod Not AllowedHTTP method not supported
406Client ErrorNot AcceptableResource not available in acceptable format
407Client ErrorProxy Authentication RequiredMust authenticate with proxy
408Client ErrorRequest TimeoutServer timed out waiting for request
409Client ErrorConflictRequest conflicts with server state
410Client ErrorGoneResource permanently removed
411Client ErrorLength RequiredContent-Length header missing
412Client ErrorPrecondition FailedServer precondition failed
413Client ErrorPayload Too LargeRequest body too large
414Client ErrorURI Too LongRequest URL too long
415Client ErrorUnsupported Media TypeFormat not supported
416Client ErrorRange Not SatisfiableInvalid range request
417Client ErrorExpectation FailedExpect header not met
418Client ErrorI’m a TeapotJoke status from RFC 2324
422Client ErrorUnprocessable EntityWebDAV request validation failed
425Client ErrorToo EarlyRequest too early to process
426Client ErrorUpgrade RequiredSwitch to a different protocol
428Client ErrorPrecondition RequiredMissing required conditions
429Client ErrorToo Many RequestsRate-limiting triggered
431Client ErrorRequest Header Fields Too LargeHeaders too large
451Client ErrorUnavailable For Legal ReasonsBlocked due to legal demand
500Server ErrorInternal Server ErrorGeneric server failure
501Server ErrorNot ImplementedFunctionality not supported
502Server ErrorBad GatewayInvalid response from upstream server
503Server ErrorService UnavailableServer temporarily overloaded
504Server ErrorGateway TimeoutUpstream server timeout
505Server ErrorHTTP Version Not SupportedUnsupported HTTP version
506Server ErrorVariant Also NegotiatesInternal negotiation error
507Server ErrorInsufficient StorageWebDAV storage full
508Server ErrorLoop DetectedInfinite loop detected
510Server ErrorNot ExtendedMissing policy extensions
511Server ErrorNetwork Authentication RequiredAuthenticate to access network

3. Common HTTP Error Codes & Fixes

404 Not Found

  • Cause: The requested page doesn’t exist.
  • Fix: Check URL spelling or update broken links.

500 Internal Server Error

  • Cause: Generic server issue.
  • Fix: Check server logs for PHP or database errors.

503 Service Unavailable

  • Cause: Server is overloaded or down for maintenance.
  • Fix: Reduce traffic load or wait for maintenance to finish.

4. Summary

HTTP status codes are essential for understanding web server responses. Knowing them helps developers debug issues faster and optimize website performance.

Mersenne Prime and Mersenne Twister Explaination

Mersenne Prime and Mersenne Twister are two distinct mathematical/computational concepts that share part of their name but serve completely different purposes. Here’s a breakdown of the differences:

1. Mersenne Prime

  • Definition: A Mersenne prime is a special type of prime number that can be expressed in the form:

Mn​=2n−1

  • where nnn is a positive integer and MnM_nMn​ is prime.
  • Example: For n=2n = 2n=2, M2=22−1=3M_2 = 2^2 – 1 = 3M2​=22−1=3 (which is prime). For n=3n = 3n=3, M3=23−1=7M_3 = 2^3 – 1 = 7M3​=23−1=7 (which is also prime). However, not all numbers of the form 2n−12^n – 12n−1 are prime (e.g., 24−1=152^4 – 1 = 1524−1=15, which is not prime).
  • Applications:
    • Mersenne primes are closely related to perfect numbers, which are integers equal to the sum of their proper divisors.
    • They are of interest in number theory and are used in cryptographic algorithms.

In summary, while Mersenne primes are a special class of numbers studied in mathematics, the Mersenne Twister is a practical tool for random number generation in computing, inspired by the mathematical properties of Mersenne primes.

Why Are Mersenne Primes Special?

  • Rare: Not all numbers of the form 2n−12^n – 12n−1 are prime; nnn must itself be prime for 2n−12^n – 12n−1 to have a chance of being prime, but even then, not all such numbers are prime.
  • Connection to Perfect Numbers: Every Mersenne prime is associated with an even perfect number (a number equal to the sum of its proper divisors).

2. Mersenne Twister

  • Definition: The Mersenne Twister is a pseudorandom number generator (PRNG) developed by Makoto Matsumoto and Takuji Nishimura in 1997 and designed for generating sequences of random numbers with a very long period. It is named “Mersenne” because its period length is a Mersenne prime, specifically 219937−12^{19937} – 1219937−1.
  • Purpose: To generate sequences of numbers that approximate true randomness for applications in simulations, games, statistical sampling, and more.
  • Key Characteristics:
    • Period: Extremely long period (219937−12^{19937} – 1219937−1).
    • Speed: Very fast and efficient for generating random numbers.
    • Quality: Produces numbers with a uniform distribution and passes many statistical tests for randomness.
  • Applications:
    • Widely used in simulations, cryptographic applications (though not cryptographically secure), and any situation requiring high-quality random number generation.
  • Efficiency:
    • It is computationally efficient, capable of generating random numbers quickly, making it suitable for applications requiring large volumes of random data.
  • Quality of Randomness:
    • The Mersenne Twister passes most standard statistical tests for randomness, ensuring the generated sequences appear random and unbiased.

How Does It Work?

The Mersenne Twister works by maintaining an internal state array of size N=624N = 624N=624, with each element being a 32-bit integer. The generator progresses by:

  1. Initialization:
    • The state array is initialized using a seed value (often a single integer).
  2. Recurrence Relation:
    • The generator uses a linear recurrence relation to update its state. At each step, a new value is computed by combining elements of the state array using bitwise operations and a carefully chosen set of constants.
  3. Tempering:
    • The output is “tempered” (processed further) to improve statistical properties and ensure the generated numbers are distributed uniformly.

Applications

  1. Simulations:
    • Widely used in Monte Carlo simulations and scientific modeling where high-quality random numbers are required.
  2. Games:
    • Randomness in video games, such as dice rolls, loot drops, or random events, often relies on the Mersenne Twister.
  3. Statistical Sampling:
    • Random sampling from datasets in statistics and machine learning.
  4. Randomized Algorithms:
    • Used in algorithms requiring randomness, such as quicksort or hash table probing.

Strengths

  • Extremely Long Period: The massive period ensures that the generator doesn’t repeat its sequence in realistic use cases.
  • Speed: Generates random numbers efficiently.
  • High Quality: It meets strict randomness requirements, making it suitable for most non-cryptographic applications.

Limitations

  1. Not Cryptographically Secure:
    • The Mersenne Twister is predictable if an attacker knows part of its internal state or a sequence of generated numbers. For cryptographic purposes, use secure PRNGs like Cryptographically Secure PseudoRandom Number Generators (CSPRNGs).
  2. Memory Usage:
    • The state array of size 624 integers (about 2.5 KB) is larger than simpler PRNGs like the Linear Congruential Generator (LCG).
  3. Initialization Time:
    • Initializing the state array can be slower compared to simpler generators.

Variants

Several variants of the Mersenne Twister have been developed to address specific use cases:

  1. MT19937:
    • The original 32-bit version of the Mersenne Twister.
  2. MT19937-64:
    • A 64-bit version of the Mersenne Twister, designed for 64-bit systems.
  3. TinyMT:
    • A smaller version with reduced state size, designed for embedded systems or applications with limited memory.

How to Use the Mersenne Twister in Programming

Most modern programming languages and libraries include the Mersenne Twister as the default or available PRNG:

  • Python
import random

random.seed(42)  # Initialize the generator with a seed
print(random.random())  # Generate a random float between 0 and 1
  • C++
#include <random>

std::mt19937 mt(42);  // Initialize with a seed
std::uniform_real_distribution<double> dist(0.0, 1.0);

double random_value = dist(mt);  // Generate a random number

Key Differences

AspectMersenne PrimeMersenne Twister
NatureMathematical concept (prime number).Algorithm for pseudorandom number generation.
Form2n−12^n – 12n−1, where nnn is a positive integer and 2n−12^n – 12n−1 is prime.Uses a long recurrence relation to generate random numbers.
PurposeStudied in number theory.Used in computational random number generation.
ApplicationsCryptography, pure math research.Simulations, games, machine learning, etc.

Install Memcached in PHP8.2-FPM+ With NGINX Ubuntu

0. Don’t forget to install pear for pecl call.

sudo apt-get install -y php8.2-pear

1. After You install the php8.2-fpm you run this command:

sudo apt-get -y install gcc make autoconf libc-dev pkg-config
sudo apt-get -y install zlib1g-dev
sudo apt-get -y install libmemcached-dev
sudo pecl install memcached

RESULT:

WARNING: channel "pecl.php.net" has updated its protocols, use "pecl channel-update pecl.php.net" to update
pecl/memcached can optionally use PHP extension "igbinary" (version >= 2.0)
pecl/memcached can optionally use PHP extension "msgpack" (version >= 2.0)
downloading memcached-3.2.0.tgz …
Starting to download memcached-3.2.0.tgz (90,722 bytes)
…………………done: 90,722 bytes
18 source files, building
running: phpize

When you are shown the following prompts, you will want to press Enter to select the default option for all of the prompts except for enable sasl. When shown the enable sasl prompt, input “no”, then press Enter.

Configuring for:
PHP Api Version: 20220829
Zend Module Api No: 20220829
Zend Extension Api No: 420220829
libmemcached directory [no] : no
zlib directory [no] : no
use system fastlz [no] : no
enable igbinary serializer [no] : no
enable msgpack serializer [no] : no
enable json serializer [no] : no
enable server protocol [no] : no
enable sasl [yes] : non
enable sessions [yes] :

Once installed, create a configuration file for the extension and restart PHP by running the following commands as root

sudo bash -c "echo 'extension=memcached.so' >> /etc/php/8.2/fpm/php.ini"
sudo bash -c "echo 'extension=memcached.so' >> /etc/php/8.2/cli/php.ini"
sudo service php8.2-fpm restart

Reference Link

TOP SEO Domain Metric Checker Website | 100% Free

Scan your website & get a roadmap for SEO strategy, backlinks, UX, semantics & content. A free list of tailored improvements for your website. Get it in 4 minutes! 32+ trillion backlinks. Analyze your on-page SEO in one click, get customized suggestions and improve your. rankings. Audit your site today to improve engagement for your audiences!

Link Building is King. Harness that Social Media Power. Add an RSS Feed Subscription Box. Don’t Shy from Blog Commenting. Guest Posting is Still Hot. Forums Posting Is a Thing. Build Trust.

On-page SEO focuses on optimizing parts of your website that are within your control, while offpage SEO focuses on increasing the authority of your domain. Try to use my domain to check the metric https://josuamarcelc.com you may compare it with yours.

Free SEO Domain Checker List:

Installing and Configuring Memcached with PHP8.2

Memcached is a high-performance, distributed memory caching system designed to speed up dynamic web applications by alleviating database load. It is widely used to enhance the performance of web-based applications by caching data and objects in RAM to reduce the number of times an external data source (such as a database or API) must be read. This article will guide you through the process of installing Memcached on your server and integrating it with PHP.

Read also How to Install Memcached in CodeIgniter Framework

After installing php8.2 with nginx you might install the main memcached and the memcached for PHP.

sudo apt-get update
sudo apt-get install memcached
sudo apt-get install php8.2-memcached

Conclusion: You have successfully installed and configured Memcached with PHP. Memcached is a powerful tool for improving the performance of your PHP applications. It’s easy to set up and integrate, and it can significantly reduce the load on your database by caching frequently accessed data.

Additional Tips:

  • Regularly monitor your Memcached usage.
  • Secure your Memcached server, especially if it’s on a public network.
  • Keep your software updated for security and performance improvements.

Top Crawlers Bots IP Ranges For Search Engine Optimization

In the world of Search Engine Optimization (SEO), understanding the behavior of search engine crawlers is crucial. These crawlers, also known as bots or spiders, are automated programs used by search engines like Google, Bing, and others to scan and index the content of websites. By identifying the IP ranges of these crawlers, webmasters can optimize their websites more effectively. This article delves into the top crawlers, their IP ranges, and how this knowledge benefits SEO.

ENGINEENDPOINT
Google IP Rangeshttps://www.gstatic.com/ipranges/goog.json
Google Botshttps://developers.google.com/static/search/apis/ipranges/googlebot.json
Google Special Crawlershttps://developers.google.com/static/search/apis/ipranges/special-crawlers.json
Google User Triggeredhttps://developers.google.com/static/search/apis/ipranges/user-triggered-fetchers.json
Global and regional external IP address ranges for customers’ Google Cloud resourceshttps://www.gstatic.com/ipranges/cloud.json
BingBot IP Rangeshttps://www.bing.com/toolbox/bingbot.json
DuckDuckGo Botshttps://duckduckgo.com/duckduckgo-help-pages/results/duckduckbot/
Ahref Crawler IP Rangeshttps://api.ahrefs.com/v3/public/crawler-ip-ranges
Yandex IP Rangeshttps://yandex.com/ips
Facebook IP Rangeshttps://developers.facebook.com/docs/sharing/webmasters/crawler/

ReferencesLink
All Crawlers User Agentshttps://gist.github.com/josuamarcelc/6bfbdc14c6292e195844032bea7211d1
Google Crawler Indexinghttps://developers.google.com/search/docs/crawling-indexing/verifying-googlebot
Yandex Robotshttps://yandex.com/support/webmaster/robot-workings/check-yandex-robots.html
Moz RogerBothttps://moz.com/help/moz-procedures/crawlers/rogerbot
Verify Bingbothttps://www.bing.com/webmasters/help/verify-bingbot-2195837f

Cloud IPsReference Link
IP Ranges v4https://www.cloudflare.com/ips-v4/#
IP Ranges V6https://www.cloudflare.com/ips-v6/#
API IP Rangeshttps://api.cloudflare.com/client/v4/ips
Yandex Cloud IPshttps://cloud.yandex.com/en/docs/vpc/concepts/ips

Understanding Search Engine Crawlers

What Are Crawlers?

Crawlers are automated programs that visit websites to read and index their content. They follow links from one page to another, thereby creating a map of the web that search engines use to provide relevant search results.

Importance in SEO

Recognizing crawlers is essential in SEO as it ensures that your website is indexed correctly. Proper indexing increases the chances of your website appearing in search results, thereby driving organic traffic.

Top Search Engine Crawlers and Their IP Ranges

Googlebot

  • Primary Role: Indexing websites for Google Search.
  • IP Range: Googlebot IPs typically fall within the range owned by Google. However, due to the vast number of IP addresses Google owns, it’s more efficient to verify Googlebot by using the reverse DNS lookup method.

Bingbot

  • Primary Role: Crawling for Microsoft’s Bing search engine.
  • IP Range: Bingbot also uses a range of IP addresses. Similar to Googlebot, it’s advisable to use reverse DNS lookups to confirm the legitimacy of Bingbot.

Baiduspider

  • Primary Role: Indexing for the Baidu search engine, predominantly used in China.
  • IP Range: Baiduspider’s IP ranges are published by Baidu and can be found in their webmaster tools documentation.

Yandex Bot

  • Primary Role: Crawling for Russia’s Yandex search engine.
  • IP Range: Yandex provides a list of IP addresses for its crawlers, which can be found in their official documentation.

Why Knowing IP Ranges Matters

  1. Security: Distinguishing between legitimate crawlers and malicious bots is crucial for website security.
  2. Accurate Analytics: Identifying crawler traffic helps in obtaining more accurate analytics data, as it separates human traffic from bot traffic.
  3. SEO Optimization: Understanding crawler behavior helps in optimizing websites for better indexing and ranking.
  4. Resource Management: It helps in managing server resources effectively, as crawlers can consume significant bandwidth.

Best Practices for Managing Crawler Traffic

  • Robots.txt File: Use this to guide crawlers on which parts of your site to scan and which to ignore.
  • Monitoring Server Logs: Regularly check server logs for crawler activities to ensure that your site is being indexed properly.
  • Updating Sitemaps: Keep your sitemaps updated to aid crawlers in efficient website navigation.

Conclusion

Recognizing and understanding the IP ranges of top search engine crawlers is a vital aspect of SEO. It helps in distinguishing between genuine search engine bots and potential security threats, enhances website performance, and contributes to more effective SEO strategies. As search engines evolve, staying informed about crawler activities and best practices is essential for maintaining and improving your website’s search engine visibility.

Quota Exceed While Request Indexing to Google Search Console

Search Analytics

Search Analytics quota falls in two types: load limits and QPS limits. The “quota exceeded” error is the same for all quota exceeded events.

Load quota

Load represents the internal resources consumed by a query. Most users will not exceed load limits, but if you do, you will receive a “quota exceeded” error message. The Search Analytics resource enforces the following load limits:

  • Short-term load quota: Short-term quota is measured in 10 minute chunks. To fix:
    • If you exceed your quota, wait 15 minutes and try again. If you still exceed quota, you are exceeding long-term quota.
    • If you are exceeding short-term quota only, spread out your queries throughout the day.
  • Long-term load quota: Long-term quota is measured in 1 day chunks. If you exceed quota when running only a single query inside a 10 minute period, you are exceeding your long-term quota. To fix:
    • Queries are expensive when you group and/or filter by either page or query string. Queries grouped/filtered by page AND query string are the most expensive. To reduce your load for these queries, remove the grouping and/or filtering for the page and/or query string.
    • Query load increases with the date range queried. So queries with a six month range are much more expensive than a query with a one day range.
    • Avoid requerying the same data (for example, querying all data for last month over and over).

QPS quota

The Search Analytics resource enforces the following QPS (queries per second) QPM (queries per minute) and QPD (queries per day) limits:

  • Per-site quota (calls querying the same site):
    • 1,200 QPM
  • Per-user quota (calls made by the same user):
    • 1,200 QPM
  • Per-project quota (calls made using the same Developer Console key):
    • 30,000,000 QPD
    • 40,000 QPM

Example

  • User A can make up to 1,200 QPM combined to her 3 websites.
  • Users A and B can make up to 1,200 QPM combined to their one website.

URL inspection

  • Per-site quota (calls querying the same site):
    • 2000 QPD
    • 600 QPM
  • Per-project quota (calls made using the same Developer Console key):
    • 10,000,000 QPD
    • 15,000 QPM

All other resources

  • Per-user limit (calls made by the same user):
    • 20 QPS
    • 200 QPM
  • Per-project limit (calls made using the same Developer Console key):
    • 100,000,000 QPD

Reference: https://developers.google.com/webmaster-tools/limits

Set Up OpenVPN Server In 3 Minutes

sudo apt update
sudo apt upgrade

ip a
ip a show eth0

dig +short myip.opendns.com @resolver1.opendns.com
dig TXT +short o-o.myaddr.l.google.com @ns1.google.com | awk -F'"' '{ print $2}'
wget https://git.io/vpn -O openvpn-install.sh
chmod +x openvpn-install.sh

sudo ./openvpn-install.sh

Sample session from AWS/Lightsail where my cloud server is behind NAT:

Sample session from Linode/DO server where cloud server has Direct Public

To avoid problem always choose DNS as 1.1.1.1 or Google DNS. Those are fast DNS server and reached from anywhere on the Internet.

Submitting your sitemap to search engines via HTTP GOOGLE AND BING

Submitting your sitemap to search engines via HTTP can be done using a straightforward method. Here are the general steps to submit your sitemap using an HTTP request:

  1. Create or Generate Your Sitemap:
    • If you haven’t already, create a valid XML sitemap for your website. This sitemap should list all the URLs you want search engines to index.
  2. Host the Sitemap on Your Web Server:
    • Upload your sitemap file to your web server or hosting account. You should be able to access it via a URL, such as https://yourwebsite.com/sitemap.xml.
  3. Use a Web Browser or Command-Line Tool:
    • You can use a web browser or a command-line tool like curl or wget to send an HTTP request to search engines. Below are examples of how to do this:
    Using a Web Browser:
    • Open your web browser and visit the respective URL to submit your sitemap to Google or Bing:
      • For Google: https://www.google.com/ping?sitemap=https://yourwebsite.com/sitemap.xmlFor Bing: https://www.bing.com/ping?sitemap=https://yourwebsite.com/sitemap.xml
      Replace https://yourwebsite.com/sitemap.xml with the actual URL of your sitemap.
    Using Command-Line Tools (e.g., curl):
    • Open your command-line interface and run one of the following commands to submit your sitemap to Google:bashCopy codecurl -H "Content-Type: text/plain" --data "https://yourwebsite.com/sitemap.xml" "https://www.google.com/ping?sitemap"
    • Or submit your sitemap to Bing:bashCopy codecurl -H "Content-Type: text/plain" --data "https://yourwebsite.com/sitemap.xml" "https://www.bing.com/ping?sitemap"
  4. Check the Response:
    • After submitting the HTTP request, you should receive a response from the search engine. This response will typically indicate whether the sitemap submission was successful.
  5. Monitor Search Console:
    • Although submitting via HTTP can notify search engines of your sitemap, it’s a good practice to monitor your Google Search Console and Bing Webmaster Tools accounts. These tools provide more insights into the indexing status of your website and any potential issues.

Submitting your sitemap via HTTP is a convenient and straightforward way to inform search engines about your website’s structure and content updates. However, keep in mind that while this method helps with initial discovery, it does not replace the need for regular monitoring and management of your website’s SEO through official search engine webmaster tools.

Exit mobile version