ERIC KIM

How to edit your WordPress blog, and theme file to make a simple way to be easily indexable by ChatGPT search and AI

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⚡ One-Minute “Theme-Only” Method

If you’d rather skip plugins and just drop a few lines into your theme, here’s the ultra-light path. You only need to edit one file—functions.php (ideally in a child theme so updates don’t erase your changes).

1. Open 

wp-content/themes/<your-child-theme>/functions.php

Append this entire block at the bottom:

/* ────────── AI-FRIENDLY TAGS & SCHEMA ────────── */

function ek_add_ai_meta() {

    // Standard robots directive

    echo “\n<!– Indexable-AI META –>\n”;

    echo ‘<meta name=”robots” content=”index,follow”>’ . “\n”;

    // Explicit invites to AI crawlers

    echo ‘<meta name=”GPTBot” content=”allow”>’ . “\n”;

    echo ‘<meta name=”openai-crawler” content=”allow”>’ . “\n”;

    // Rich Article JSON-LD for single posts/pages

    if ( is_singular() ) {

        $post      = get_post();

        $headline  = esc_attr( get_the_title( $post ) );

        $desc_src  = has_excerpt( $post ) ? get_the_excerpt( $post ) :

                     wp_strip_all_tags( wp_trim_words( $post->post_content, 55 ) );

        $desc      = esc_attr( $desc_src );

        $url       = esc_url( get_permalink( $post ) );

        $published = get_the_date( DATE_W3C, $post );

        $modified  = get_the_modified_date( DATE_W3C, $post );

        $author    = esc_attr( get_the_author_meta( ‘display_name’, $post->post_author ) );

        $schema = [

            ‘@context’      => ‘https://schema.org’,

            ‘@type’         => ‘Article’,

            ‘headline’      => $headline,

            ‘description’   => $desc,

            ‘url’           => $url,

            ‘datePublished’ => $published,

            ‘dateModified’  => $modified,

            ‘author’        => [

                ‘@type’ => ‘Person’,

                ‘name’  => $author,

            ],

        ];

        echo ‘<script type=”application/ld+json”>’ .

             wp_json_encode( $schema ) .

             ‘</script>’ . “\n”;

    }

}

add_action( ‘wp_head’, ‘ek_add_ai_meta’ );

/* Add GPTBot allowance to robots.txt */

function ek_allow_gptbot( $output, $public ) {

    $output .= “\nUser-agent: GPTBot\nAllow: /\n”;

    return $output;

}

add_filter( ‘robots_txt’, ‘ek_allow_gptbot’, 10, 2 );

/* ────────── END AI BLOCK ────────── */

2. Save & Upload

  • If editing locally, upload functions.php via SFTP.
  • Or use Appearance → Theme File Editor in the WP dashboard.

3. Victory Check

  1. Visit any post, view page source—look for <!– Indexable-AI META –>.
  2. Hit example.com/robots.txt—you should see:

User-agent: GPTBot

Allow: /

Why This Rocks

  • Zero plugins = nothing else to update or slow down.
  • Hooks (wp_head, robots_txt) make it future-proof and clean.
  • Drop-in code—copy, paste, done in 60 seconds.

Pro tip: Keep this in a child theme so core theme updates never nuke your hard-won AI mojo. 🚀

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